Home - Taxonomy - Geography - Biodiversity - Literature - Purchase RepFocus Recent updates Related bibliographies: Reptiles Snakes Viperidae Central America North America Taxonomy of the genus Agkistrodon Biodiversity of the family Viperidae Bibliography of the genus Agkistrodon (American Copperheads and Moccasins) (Reptilia: Serpentes: Viperidae) Note: In order to limit redundancy, relevant literature indexed in the related bibliographies in the left column may not have been included in this page. For a comprehensive search of literature, these bibliographies should therefore also be consulted. Agkistrodon in general Aldridge, R.D.; Duvall, D. 2002. Evolution of the mating season in the pitvipers of North America. Herpetological Monographs 16: 1-25. Bushar, L.M.; Maliga, M.; Reinert, H.K. 2001. Cross-species amplification of Crotalus horridus microsatellites and their application in phylogenetic analysis. Journal of Herpetology 35(3): 532-537. Chiasson, R.B. 1982. The apical pits of Agkistrodon (Reptilia: Serpentes). Journal of the Arizona-Nevada Academy of Science 16(3) [1981]: 69-73. Conant, R. 1986. Phylogeny and zoogeography of the genus Agkistrodon in North America. pp. 89-92. In: Rocek, Z. (ed.). Studies in herpetology. Proceedings of the European herpetological meeting (3rd ordinary general meeting of the Societas Europaea Herpetologica), Prague 1985. Charles University, Prague. 754 pp. Conant, R. 1992. Comments on the survival status of members of the Agkistrodon complex. pp. 29-33. In: Strimple, P.D. & Strimple, J.L. (eds.). Contributions in herpetology. Greater Cincinnati Herpetological Society, Cincinnati. 111 pp. Ernst, C.H. 1965. Fang length comparisons of American Agkistrodon. Transactions of the Kentucky Academy of Science 26: 12-18. Ernst, C.H. 1982. A study of the fangs of snakes belonging to the Agkistrodon-complex. Journal of Herpetology 16(1): 72-80. Ernst, G.H. 1964. A study of sexual dimorphism in American Agkistrodon fang lengths. Herpetologica 20: 214. Fernandez, P.; Gutierrez, J.M. 2008. Mortality due to snakebite envenomation in Costa Rica (1993-2006). Toxicon 52(3): 530-533. Ferrier, W.; Ferrier, U. 1999. Agkistrodon. New World pit vipers. Reptilia (GB) 8: 58-63. Gloyd, H.K.; Conant, R. 1943. A synopsis of the American forms of Agkistrodon (copperheads and moccasins). Bull. Chioago Acad. Sci. 7(2): 147-170. Isogawa, K. 1995. Comparative observations on dorsal scales of shed skins of the genus Agkistrodon (Viperidae, Crotalinae) from Far East Asia. The Snake 27(1): 7-11. Isogawa, K. 1997. Classification of the Old World Agkistrodon (Viperidae; Crotalinae) with comments on some problems in its taxa. Honyurui Kagaku 37(1): 47-53. Klauber, L.M. 1957. Agkistrodon or Ancistrodon? Copeia 1956(4) [1957]: 258-259. Knight, A.; Densmore, L.D.; Rael, E.D. 1992. Molecular systematics of the Agkistrodon complex. pp. 49-70. In: Campbell, J.A. & Brodie, E.D. (eds.). Biology of the pitvipers. Selva, Tyler, Texas. 467 pp. Newman, D.J.; Lee, J.R. 2013. Natural history notes: Lampropeltis nigra (Black Kingsnake). Diet. Herpetological Review 44(3): 523. Parker, H.W. 1966. Ancistrodon not Agkistrodon (Reptilia-Serpentes) Z.N. (S.) 671. Bulletin of Zoological Nomenclature 22: 300-302. Rannala, B.; Yang, Z. 2017. Efficient Bayesian species tree inference under the multispecies coalescent. Systematic Biology 66(5): 823-842 Sabrosky, C.W. 1967. Ancistrodon versus Agkistrodon, Z.N. (S.) 671. Bulletin of Zoological Nomenclature 24: 203. Savitzky, A.H. 1992. Embryonic development of the maxillary and prefrontal bones of crotaline snakes. pp. 119-141. In: Campbell, J.A. & Brodie, E.D. (eds.). Biology of the pitvipers. Selva, Tyler, Texas. 467 pp. Smith, H.M.; Gloyd, H.K. 1964. Nomenclatural notes on the snake names Scytale, Boa scytale and Agkistrodon mokasen. Herpetologica 19: 280-282. Toriba, M. 1999. Comments on the taxonomy of Agkistrodon listed in Stejneger (1907). (In Japanese). Bulletin of the Herpetological Society of Japan 1: 3-5. Tu, A.T.; Adams, B.L. 1968. Phylogenetic relationships among venomous snakes of the genus Agkistrodon from Asia and the north American continent. Nature (London) 217: 760-762. Wittner, D. 1978. A discussion of venomous snakes of North America. Distribution and occurrence of North American snakes of the genera Crotalus, Sistrurus, and Agkistrodon. Herp 14(1): 12-17. Agkistrodon bilineatus Allen, E.R. 1949. Observations of the feeding habits of the juvenile cantil. Copeia 1949(3): 225-226. Arenas-Monroy, J.C.; Ahumada-Carrillo, I.T. 2015. Distribution notes: Agkistrodon bilineatus Günther, 1863 (Squamata: Viperidae): confirmation of an inland locality for central Jalisco, Mexico. Mesoamerican Herpetology 2(3): 371-374. Babb, R.D.; Dugan, E.A. 2008. Geographic distribution: Agkistrodon bilineatus (Cantil). Herpetological Review 39(1): 110. Bartlett, R.D. 1995. Copperheads, masters of camouflage (with mention of Cottonmouths, Cantils and Gaboon Vipers). Tropical Fish Hobbyist 44(4): 152, 154, 156, 158, 160-163, 165-168, 170-171. Blair, K.B.; Killebrew, F.C.; Smith, H.M.; Chiszar, D. 1997. Mexican amphibians and reptiles in the West Texas A & M University Natural History Museum. Bulletin of the Chicago Herpetological Society 32(8): 174-177. Boerema, H. 1989. The keeping and breeding of Agkistrodon bilineatus bilineatus. Litteratura Serpentium (English Edition) 9(6): 267-268. Bolanos, R. 1968. Agkistrodon bilineatus Gunther from Costa Rica. Revista de Biologia Tropical 16: 277-278. Bryson, R.W.; Mendoza-Quijano, F. 2007. Cantils of Hidalgo and Veracruz, Mexico, with comments on the validity of Agkistrodon bilineatus lemosespinali. Journal of Herpetology 41(3): 536-539. Canseco-Marquez, L.; Nolasco-Velez, A.L. 2008. Geographic distribution: Agkistrodon bilineatus (Cantil). Herpetological Review 39(3): 369. Cruz, G.A.; Wilson, L.D.; Espinosa, J. 1979. Two additions to the reptile fauna of Honduras, Eumeces managuae Dunn and Agkistrodon bilineatus (Gunther), with comment on Pelamis platurus (Linnaeus). Herpetological Review 10(1): 26-27. DeSantis, D.L.; Mata-Silva, V.; García-Padilla, E.; Wilson, L.D.; Ramírez-Bautista, A. 2015. Distribution notes: Agkistrodon bilineatus (Günther, 1863). Mesoamerican Herpetology 2(4): 552-553. Drent, J. 1991. Agkistrodon bilineatus bilineatus. Litteratura Serpentium (English Edition) 11(6): 145. Dugan, E.A.; Meyer, S.A. 2007. Natural history notes: Agkistrodon bilineatus (Cantil). Reproduction. Herpetological Review 38(1): 85-86. Furiani, M. 1989. The reproduction of Agkistrodon bilineatus (Gunther, 1888) in captivity. Litteratura Serpentium (English Edition) 9(4): 142-144. García-Grajales, J.; Buenrostro-Silva, A. 2011. Ampliación del área de distribución gepgráfica de Oxybelis fulgidus (Serpentes: Colubridae) y Agkistrodon bilineatus (Serpentes: Viperidae) en la planicie costera central de Oaxaca, México [Geographic distribution enlargment of Oxybelis fulgidus (Serpentes: Colubridae) and Agkistrodon bilineatus (Serpentes: Viperidae) from the costal central plain of Oaxaca, Mexico]. (In Spanish). Acta Zoologica Mexicana Nueva Serie 27(2): 491-495. Gloyd, H.K. 1957. Distribution of the Mexican moccasin: a correction. Copeia 1956(4) [1957]: 259. Henderson, R.W. 1978. Notes on Agkistrodon bilineatus (Reptilia, Serpentes, Viperidae) in Belize. Journal of Herpetology 12(3): 412-413. Lemos-Espinal, J.A.; Smith, H.M.; Chiszar, D. 2006. Agkistrodon b. bilineatus in Western Chihuahua. Bulletin of the Maryland Herpetological Society 42(4): 173-175. Loc-Barragán, J.A.; Carbajal-Márquez, R.A. 2016. Nature notes: Agkistrodon bilineatus Günther, 1863. Diet. Mesoamerican Herpetology 3(3): 733-735. Loveridge, A. 1928. Note on Agkistrodon bilineatus Gunther. Bulletin of the Antivenin Institute of America 2: 52. Macchiavelli, G. 1990. Reproduction of Agkistrodon bilineatus bilineatus. Litteratura Serpentium (English Edition) 10(5): 221-224. Neill, W.T. 1960. The caudal lure of various juvenile snakes. Quarterly Journal of the Florida Academy of Sciences 23: 173-200. Porras, L.W.; Wilson, L.D.; Schuett, G.W.; Reiserer, R.S. 2013. A taxonomic reevaluation and conservation assessment of the common cantil, Agkistrodon bilineatus (Squamata: Viperidae): a race against time. Amphibian and Reptile Conservation 7(1): 48-73. Smetsers, P. 1993. Agkistrodon bilineatus - Gunther, the tropical moccasin. Litteratura Serpentium (English Edition) 13(2): 38-40. Smith, H.M.; Chiszar, D. 2001. A new subspecies of Cantil (Agkistrodon bilineatus) from central Veracruz, Mexico (Reptilia: Serpentes). Bulletin of the Maryland Herpetological Society 37(4): 130-136. Strimple, P. 1992. Caudal movements of an adult Mexican cantil, Agkistrodon bilineatus bilineatus Gunther. pp. 55-56. In: Strimple, P.D. & Strimple, J.L. (eds.). Contributions in herpetology. Greater Cincinnati Herpetological Society, Cincinnati. 111 pp. Strimple, P. 1995. Comments on caudal luring in snakes with observations on this behaviour in two subspecies of cantils, Agkistrodon bilineatus ssp. Litteratura Serpentium (English Edition) 15(3): 74-77. Trutnau, L. 2001. Einige Bemerkungen zur Biologie, Pflege und Nachzucht der mexikanischen Giftschlangenart Agkistrodon bilineatus Günther, 1863. Herpetofauna (Weinstadt) 23(131): 5-14. Zweifel, R.G. 1959. The provenance of reptiles and amphibians collected in western Mexico by J.J. Major. American Museum Novitates 1949: 1-9. Agkistrodon conanti Allen, E.R.; Swindell, D. 1948. Cottonmouth Moccasin of Florida. Herpetologica 4: 1-15. Enge, K.M. 2013. Geographic distribution: Agkistrodon piscivorus conanti (Florida Cottonmouth). Herpetological Review 44(3): 475. Enge, K.M.; Mays, J.D.; Harrison, B.B. 2016. Geographic distribution: Agkistrodon piscivorus conanti (Florida Cottonmouth). Herpetological Review 47(1): 82. Friers, J.; Flaherty, J.P. 2015. Natural history notes: Agkistrodon piscivorus conanti (Florida cottonmouth). Diet. Herpetological Review 46(4): 636-637. Gloyd, H.K. 1968. Two additional subspecies of North American crotalid snakes, genus Agkistrodon. Proceedings of the Biological Society of Washington 82: 219-232. Grajal-Puche, A.; Josimovich, J.; Falk, B.; Reed, R.N. 2016. Natural history notes: Agkistrodon piscivorus conanti (Florida Cottonmouth). Diet. Herpetological Review 47(2): 307. Hecht-Kardasz, K.A.; Drayer, A.N.; Himes, J.G. 2012. Geographic distribution: Agkistrodon piscivorus (Cottonmouth). USA: Florida: Bay Co. Herpetological Review 43(3): 446-447. Heinrich, G.; Studenroth, K.R. 1996. Natural history notes: Agkistrodon piscivorus conanti (Florida Cottonmouth). Diet. Herpetological Review 27(1): 22. Lillywhite, H.B.; Brischoux, F. 2012. Is it better in the moonlight? Nocturnal activity of insular Cottonmouth snakes increases with lunar light levels. Journal of Zoology (London) 286(3): 194-199. Lillywhite, H.B.; McCleary, R.J.R. 2008. Trophic ecology of insular Cottonmouth snakes: review and perspective. South American Journal of Herpetology 3(2): 175-185. Lillywhite, H.B.; Sheehy, C.M.; McCue, M.D. 2002. Scavenging behaviors of Cottonmouth snakes at island bird rookeries. Herpetological Review 33(4): 259-261. Lillywhite, H.B.; Sheehy, C.M.; Zaidan, F. 2008. Pitviper scavenging at the intertidal zone: an evolutionary scenario for invasion of the sea. Bioscience 58(10): 947-955. May, P.G.; Farrell, T.M. 1998. Florida's flatwoods. Cottonmouths: observations of feeding behavior. Reptile & Amphibian Magazine 56: 18-24. Palis, J.G. 1993. Life history notes: Agkistrodon piscivorus conanti (Florida Cottonmouth). Prey. Herpetological Review 24(2): 59, 62. Sheehy, C.M.; Sandfoss, M.R.; Lillywhite, H.B. 2017. Cannibalism and changing food resources in insular cottonmouth snakes. Herpetological Review 48(2): 310-312. Studenroth, K.R. 1991. Life history notes: Agkistrodon piscivorus conanti (Florida Cottonmouth). Foraging behavior. Herpetological Review 22(2): 60. Tetzlaff, S.J.; Tetzlaff, D.L.; Schoenbeck, M.; Clark, N. 2014. Natural history notes: Agkistrodon piscivorus conanti (Florida Cottonmouth). Diet and phenotype. Herpetological Review 45(3): 511-512. Walters, A.C.; Card, W. 1996. Natural history notes: Agkistrodon piscivorus conanti (Florida Cottonmouth). Brood defense. Herpetological Review 27(4): 203. Wharton, C.H. 1966. Reproduction and growth in the cottonmouths, Agkistrodon piscivorus Lacepede, of Cedar Keys, Florida. Copeia 1966: 149-161. Wharton, C.H. 1969. The Cottonmouth moccasin on Sea Horse Key, Florida. Bulletin of the Florida State Museum Biological Sciences 14: 227-272. Young, B.A.; Aguiar, A.; Lillywhite, H.B. 2008. Foraging cues used by insular Florida Cottonmouths, Agkistrodon piscivorus conanti. South American Journal of Herpetology 3(2): 135-144. Agkistrodon contortrix Abbuhl, B. 2008. Natural history notes: Agkistrodon contortrix mokeson (Northern Copperhead). Mid-winter thermoregulation. Herpetological Review 39(4): 465. Allen, E.R. 1938. The Copperhead in northern Florida. Copeia 1938: 50. Allen, E.R.; Neill, W.T. 1957. The copperhead. Florida Wild Life 1950 [1957]: 18-19. Arndt, R.G. 1971. The copperhead in New York. Conservationist 25(5): 18-19. Arndt, R.G. 1985. Distributional notes on some Delaware snakes, with two first records for the state. Bulletin of the Maryland Herpetological Society 21(2): 67-73. Babcock, H.L. 1926. The copperhead. Bull. Boston Soc. Nat. Hist. 41: 3-6. Bailey, R.M. 1940. The northern copperhead in Iowa. Iowa State Coll. J. Sc. 15(1): 1-2. Barbour, R.W. 1962. An aggregation of copperheads, Agkistrodon contortrix. Copeia 1962: 640. Barrass, G.T.; Barrass, A.N. 2011. Geographic distribution: Agkistrodon contortrix (Copperhead). Herpetological Review 42(2): 242. Bartlett, R.D. 1995. Copperheads, masters of camouflage (with mention of Cottonmouths, Cantils and Gaboon Vipers). Tropical Fish Hobbyist 44(4): 152, 154, 156, 158, 160-163, 165-168, 170-171. Barton, A.J. 1949. Ophiophagy by a juvenile copperhead. Copeia 1949(3): 232. Beane, J.C.; Gerwin, J.A. 2013. Natural history notes: Agkistrodon contortrix (Copperhead). Diet and accidental mortality. Herpetological Review 44(1): 150-151. Beaupre, S.J.; Roberts, K.G. 2001. Natural history notes: Agkistrodon contortrix contortrix (Southern Copperhead). Chemotaxis, arboreality and diet. Herpetological Review 32(1): 44-45. Bender, M.J.; Duffus, A.L.J. 2014. Geographic distribution: Agkistrodon contortrix (Copperhead). Herpetological Review 45(1): 93. Boerema, H. 1990. Agkistrodon contortrix mukeson. Litteratura Serpentium (English Edition) 10(3): 148. Boerema, H. 1990. Breeding results. Agkistrodon contortix contortix. Litteratura Serpentium (English Edition) 10(1): 54. Boerema, H. 1991. Agkistrodon contortrix contortrix - Copperhead. Litteratura Serpentium (English Edition) 11(5): 114. Boerema, H. 1991. Agkistrodon contortrix mokeson - Copperhead. Litteratura Serpentium (English Edition) 11(5): 114. Booth, W.; Schuett, G.W. 2011. Molecular genetic evidence for alternative reproductive strategies in North American pitvipers (Serpentes: Viperidae): long-term sperm storage and facultative parthenogenesis. Biological Journal of the Linnean Society 104(4): 934-942. Booth, W.; Smith, C.F.; Eskridge, P.H.; Hoss, S.K.; Mendelson, J.R.; Schuett, G.W. 2012. Facultative parthenogenesis discovered in wild vertebrates. Biology Letters 8(6): 983-985. Boyer, D.A. 1933. A case report on the potency of the bite of a young copperhead. Copeia 1933: 97. Brooks, G.C.; Graham, S.P. 2012. Geographic distribution: Agkistrodon contortrix contortrix (Southern Copperhead). USA: Alabama: Covington Co. Herpetological Review 43(4): 620. Browder, R. 2005. Agkistrodon contortrix mokasen (Northern Copperhead). Catesbeiana 25(1): 31-32. Broxson, M.D. 2011. Geographic distribution: Agkistrodon contortrix (Copperhead). Herpetological Review 42(1): 113. Brumwell, M.J. 1951. An ecological survey of the Fort Leavenworth Military Reservation. American Midland Naturalist 45(1): 187-231. Burbrink, F.T.; Guiher, T.J. 2015. Considering gene flow when using coalescent methods to delimit lineages of North American pitvipers of the genus Agkistrodon. Zoological Journal of the Linnean Society 173(2): 505-526. Calmonte, A. 1973. Nördlicher Kupferkopf, Agkistrodon contortrix mokeson (Daudin, 1803). Aquarium Aqua Terra 7(54): 508-510. Cameron, M.L.; Barclay, S.F.; McAllister, C.T. 2004. Geographic distribution: Agkistrodon contortrix (Copperhead). Herpetological Review 35(4): 409. Carpenter, C.C. 1958. Reproduction, young, eggs and food of Oklahoma snakes. Herpetologica 14: 113-115. Carr, W.H. 1926. The fasting of a copperhead. Copeia 1926(150): 104. Carter, E.T.; Attum, O.; Eads, B.C.; Hoffman, A.S.; Kingsbury, B.A. 2014. Reducing the potential for human-snake encounters in a recreational park. Human-Wildlife Interactions 8(2): 158-167. Cassano, E.; Smith, C.; Eskridge, P. 2012. Natural history notes: Agkistrodon contortrix contortrix (Southern Copperhead). Maximum captive length. Herpetological Review 43(2): 265. Chenoweth, W.L. 1948. Birth and behavior of young copperheads. Herpetologica 4(5): 162. Cochran, D.M. 1944. Dangerous reptiles (popular). Rep. Smithson. Instn. 1943: 275-325. Cochran, P.A. 2008. A Cottonmouth (Agkistrodon piscivorus) in Minnesota, and historical reports of other pit vipers unexpected in the upper Midwest. Northeastern Naturalist 15(3): 461-464. Collins, J.D.; Collins, J.T. 2003. Agkistrodon contortrix (Copperhead). Journal of Kansas Herpetology 8: 19. Colvin, R.; Dennison, J. 2013. Geographic distribution: Agkistrodon contortrix (Copperhead). USA: Tennessee: Weakley Co. Herpetological Review 44(1): 108. Connior, M.B. 2008. Geographic distribution: Agkistrodon contortrix contortrix (Southern Copperhead). USA: Arkansas. Herpetological Review 39(4): 484. Cross, C.L.; Petersen, C.E. 2001. Modeling snake microhabitat from radiotelemetry studies using polytomous logistic regression. Journal of Herpetology 35(4): 590-597. Cupp, P.V. 2018. Natural history notes: Agkistrodon contortrix (Copperhead). Diet / ophidiophagy. Herpetological Review 49(4): 747. Dolley, J.S. 1939. An anomalous pregnancy in the copperhead. Copeia 1939: 170. Douglas, M.E.; Douglas, M.R.; Schuett, G.W.; Porras, L.W. 2009. Climate change and evolution of the New World pitviper genus Agkistrodon (Viperidae). Journal of Biogeography 36(6): 1164-1180. Dowling, H.G. 1956. Geographic relations of Ozarkian amphibians and reptiles. Southwestern Naturalist 1(4): 174-189. Dowling, H.G. 1959. Rattles and hisses and rasping scales. Animal Kingdom 62: 140-142. Durso, A.M. 2017. Natural history notes: Agkistrodon contortrix (Copperhead). Diet. Herpetological Review 48(1): 203-204. Durso, A.M.; Morris, K.A. 2015. Natural history notes: Agkistrodon contortrix (copperhead). Diet. Herpetological Review 46(4): 636. Dyke, J.U. van; Grace, M.S. 2010. The role of thermal contrast in infrared-based defensive targeting by the Copperhead, Agkistrodon contortrix. Animal Behaviour 79(5): 993-999. Ferner, J.W.; Bramlage, M.; Bryant, W.S. 1999. Geographic distribution: Agkistrodon contortrix mokasen (Northern Copperhead). Herpetological Review 30(2): 112. Finneran, L.C. 1953. Aggregation behavior of the female copperhead, Agkistrodon contortrix mokeson, during gestation. Copeia 1953: 61-62. Fitch, H.S. 1959. A patternless phase of the copperhead. Herpetologica 15: 21-24. Fitch, H.S. 1960. Autecology of the copperhead. University of Kansas Publications of the Museum of Natural History 13: 85-288. Fitch, H.S. 2004. Observations on Osage Copperheads in northeastern Kansas. Journal of Kansas Herpetology 12: 20. Fitch, H.S. 2004. The effect of female size on number of eggs or young in snakes. Journal of Kansas Herpetology 9: 11-12. Fitch, H.S. 2005. Observations on wandering of juvenile snakes in northeastern Kansas. Journal of Kansas Herpetology 13: 11-12. Fitch, H.S.; Clarke, A.L. 2002. An exceptionally large natural assemblage of female Copperheads (Agkistrodon contortrix). Herpetological Review 33(2): 94-95. Flaherty, J.P.; Fulbright, M.C.; Settle, S.P.; Ross, A.T.; Gienger, C.M. 2014. Geographic distribution: Agkistrodon contortrix (Copperhead). Herpetological Review 45(1): 93. Fogell, D.D.; Leonard, T.J.; Fawcett, J.D. 2002. Natural history notes: Agkistrodon contortrix phaeogaster (Osage Copperhead). Breeding. Herpetological Review 33(3): 209-210. Folt, B.P.; Laurencio, D. 2013. Natural history notes: Agkistrodon contortrix (Copperhead). Diet. Herpetological Review 44(3): 517. Freeman, H.W. 1955. Part V. The amphibia and reptilia of the Savannah river project area. 2. Chelonia. 3. Crocodilia, Sauria and Serpentes. U.S. Cur. Publ. Biol. 1(4): 239-244, 275-291. Garton, J.S.; Dimmick, R.W. 1969. Food habits of the copperhead in middle Tennessee. Journal of the Tennessee Academy of Science 44: 113-117. Gibson, J.D. 2003. Agkistrodon contortrix mokasen (Northern Copperhead). Catesbeiana 23(2): 66. Gloyd, H.K. 1934. Studies on the breeding habits and young of the copperhead, Agkistrodon mokasen Beauvois. Papers of the Michigan Academy of Science, Arts and Letters 19(33): 587-604. Gloyd, H.K. 1968. Two additional subspecies of North American crotalid snakes, genus Agkistrodon. Proceedings of the Biological Society of Washington 82: 219-232. Gloyd, H.K.; Conant, R. 1938. The subspecies of the copperhead Agkistrodon mokasen Beauvois. Bull. Acad. Sci. Chicago 5(7): 163-166. Godard, R.D.; Wilson, C.M.; Rock, C.M.; Cash, W.B. 2006. Natural history notes: Agkistrodon contortrix (Copperhead). Diet. Herpetological Review 37(4): 476. Goodman, J.D. 1948. A report on the reptiles collected by J.M. Shaffer from the Keokuk Area, 1863-1895. Proceedings of the Iowa Academy of Science 55: 365-366. Goodwin, O.K.; Wood, J.T. 1956. Distribution of poisonous snakes on the York-James Peninsula. A zoogeographic mystery. Va. J. Sci. N.S. 7(1): 17-21. Govorchin, R.E. 1965. America's poisonous snakes. Frontiers 29: 70-73. Graves, G.R. 2002. Copperhead preys on star-nosed mole in the Great Dismal Swamp. Banisteria 20: 70. Greding, E.J. 1964. Food of Ancistrodon c. contortrix in Houston and Trinity counties, Texas. Southwestern Naturalist 9: 105. Greenbaum, E. 2004. The influence of prey-scent stimuli on predatory behavior of the North American Copperhead Agkistrodon contortrix (Serpentes: Viperidae). Behavioral Ecology 15(2): 345-350. Greenbaum, E.; Jorgensen, M. 2004. Envenomated-invertebrate prey preference of the viperid Agkistrodon contortrix during strike-induced chemosensory searching. Amphibia-Reptilia 25(2): 165-172. Grogan, W.L. 1994. New herpetological distribution records from Maryland's eastern shore. Bulletin of the Maryland Herpetological Society 30(1): 27-32. Gross, I.P.; Ewers, C.M.; Wang, Y.; Schweitzer, C.J. 2016. Natural history notes: Agkistrodon contortrix (Copperhead). Tunnel-blocking behavior. Herpetological Review 47(2): 306-307. Groves, J.D. 1977. Aquatic behavior in the northern copperhead, Agkistrodon contortrix mokasen. Bulletin of the Maryland Herpetological Society 13(2): 114-115. Guiher, T.J.; Burbrink, F.T. 2008. Demographic and phylogeographic histories of two venomous North American snakes of the genus Agkistrodon. Molecular Phylogenetics and Evolution 48(2): 543-553. Hamilton, W.J.; Pollack, J.A. 1955. The food of some crotalid snakes from Fort Benning, Georgia. Natural History Miscellanea 140: 1-4. Heatwole, H.; King, P.; Levine, S.G. 2007. Laterality in coiling behaviour of snakes: another interpretation. Laterality 12(6): 536-542. Heatwole, H.; Poran, N.; King, P. 1999. Ontogenetic changes in the resistance of Bullfrogs (Rana catesbeiana) to the venom of Copperheads (Agkistrodon contortrix contortrix) and Cottonmouths (Agkistrodon piscivorus piscivorus). Copeia 1999(3): 808-814. Irwin, K.J.; Irwin, L.K. 2002. Geographic distribution: Agkistrodon contortrix (Copperhead). Herpetological Review 33(2): 149. Jensen, J.B. 1999. Natural history notes: Terrapene carolina carolina (Eastern Box Turtle). Diet. Herpetological Review 30(2): 95. Johnson, J.E. 1948. Copperhead in a tree. Herpetologica 4(6): 214. Johnston, B.L. 2004. Geographic distribution: Agkistrodon contortrix (Copperhead). Herpetological Review 35(1): 82. Jones, J.M.; Burchfield, P.M. 1971. Relationship of specimen size to venom extracted from the copperhead, Agkistrodon contortrix. Copeia 1971: 162-163. Jordan, M.A.; Perrine-Ripplinger, N.; Carter, E.T. 2015. An independent observation of facultative parthenogenesis in the Copperhead (Agkistrodon contortrix). Journal of Herpetology 49(1): 118-121. Kelehear, C.; Seiler, M.; Graham, S.P. 2017. Natural history notes: Gastrophryne olivacea (Western Narrow-mouthed Toad). Predation. Herpetological Review 48(3): 606-607. Klauber, L.M. 1948. Some misapplications of the Linnaean names applied to American snakes. Copeia 1948: 1-14. Lagesse, L.A.; Ford, N.B. 1996. Ontogenetic variation in the diet of the Southern Copperhead, Agkistrodon contortrix, in northeastern Texas. Texas Journal of Science 48(1): 48-54. Lee, J.R.; Holbrook, A.L.; Frey, J.W. 2008. Natural history notes: Agkistrodon contortrix (Copperhead). Diet. Herpetological Review 39(1): 97. Levine, B.A.; Smith, C.F.; Douglas, M.R.; Davis, M.A.; Schuett, G.W.; Beaupre, S.J.; Douglas, M.E. 2016. Population genetics of the Copperhead at its most northeastern distribution. Copeia 104(2): 448-457. Levine, B.A.; Smith, C.F.; Schuett, G.W.; Douglas, M.R.; Davis, M.A.; Douglas, M.E. 2015. Bateman-Trivers in the 21st century: sexual selection in a North American pitviper. Biological Journal of the Linnean Society 114(2): 436-445. Livezey, R.L. 1949. An aberrant pattern of Agkistrodon mokeson austrinus. Herpetologica 5(4): 93. Lotterhand, M. 2016. In search of New England's pit vipers. ECO Herpetological Distribution and Publishing, Rodeo, New Mexico. 201 pp. Maigret, T.A.; Cox, J.J. 2018. Natural history notes: Agkistrodon contortrix (Copperhead). Hibernacula. Herpetological Review 49(1): 123. Manis, C.; Wilson, T.P.; Patrick, J. 2010. Geographic distribution: Agkistrodon contortrix mokasen (Northern Copperhead). USA: Georgia. Herpetological Review 41(3): 378. Martin, J.R.; Wood, J.T. 1955. Notes on the poisonous snakes of the Dismal Swamp area. Herpetologica 11: 237-238. McAllister, C.T.; Trauth, S.E.; Gage, L.D. 1995. Vertebrate fauna of abandoned mines at Gold Mine Springs, Independence County, Arkansas. Arkansas Academy of Science Proceedings 49: 184-187. McDuffie, G.T. 1961. Notes on the ecology of the copperhead in Ohio. Journal Ohio Herpetological Society 3(2): 26-27. McDuffie, G.T. 1963. Studies on the size, pattern and coloration of the northern copperhead (Agkistrodon contortrix mokeson Daudin) in Ohio. Journal Ohio Herpetological Society 4(1/2): 15-22. McKnight, D.T.; Harmon, J.R.; McKnight, J.L.; Ligon, D.B. 2014. Notes on the diets of seven sympatric snakes in the genera Agkistrodon, Nerodia, Sistrurus, and Thamnophis. Herpetology Notes 7: 171-177. Means, D.B. 1998. Geographic distribution: Agkistrodon contortrix contortrix (Southern Copperhead). Herpetological Review 29(3): 175. Means, D.B. 2016. Natural history notes: Desmognathus apalachicolae (Apalachicola Dusky Salamander) and Agkistrodon contortrix contortrix (Southern Copperhead). Prey/Predator. Herpetological Review 47(1): 100. Miller, J.A.; Miller, J.H.; Miller, J.L. 2009. Geographic distribution: Agkistrodon contortrix (Copperhead). Herpetological Review 40(4): 454. Miller, L.R.; Gutzke, W.H.N. 1999. The role of the vomeronasal organ of crotalines (Reptilia: Serpentes: Viperidae) in predator detection. Animal Behaviour 58(1): 53-57. Mitchell, J.C. 1977. An instance of cannibalism in Agkistrodon contortrix (Serpentes: Viperidae). Bulletin of the Maryland Herpetological Society 13(2): 119-120. Mitchell, J.C.; Fieg, M. 1996. Natural history notes: Agkistrodon contortrix mokasen (Northern Copperhead). Bicephaly. Herpetological Review 27(4): 202-203. Montgomery, C.E.; Haertle, N.E.; Beaupre, S.J. 2004. Natural history notes: Agkistrodon contortrix (Copperhead). Predation. Herpetological Review 35(3): 271. Mook, J.; Burchette, M.; DeGregorio, B.; Bogosian, V.; Schauber, E.; Moody, R.W. 2017. Natural history notes: Phrynosoma cornutum (Texas Horned Lizard). Predation. Herpetological Review 48(3): 655-656. Moon, B.R.; Conn, P.M.; Rabatsky, A.M. 2004. Natural history notes: Agkistrodon contortrix (Copperhead). Maximum prey size. Herpetological Review 35(2): 174. Moski, H. 1954. A large litter of copperheads (Agkistrodon contortrix mokeson). Copeia 1954: 67. Muelleman, P.J. 2011. Geographic distribution: Agkistrodon contortrix (Copperhead). Herpetological Review 42(2): 242. Murphy, T.D. 1964. Box turtle, Terrapene carolina, in stomach of copperhead, Agkistrodon contortrix. Copeia 1964: 221. Neill, W.T. 1948. The yellow tail of juvenile copperheads. Herpetologica 4(5): 101. Newman, J.C.; Robbins, T.R.; Graham, S.P. 2014. Natural history notes: Sceloporus undulatus (Eastern Fence Lizard). Envenomation. Herpetological Review 45(1): 134-135. Niekerson, M.A.; McDaniels, A.E. 1967. Amphibious behaviour in northern copperheads Agkistrodon contortrix mokeson (Daudin). Herpetologica 23: 60-61. Oliver, J.A. 1958. The not-so-frightful copperhead. Animal Kingdom 61: 40-46. Orth, J.C. 1939. Moth larvae in a Copperhead's stomach. Copeia 1939: 54-55. Palmer, W.M. 1965. Intergradation among the copperheads (Agkistrodon contortrix Linnaeus) in the North Carolina coastal plain. Copeia 1965: 246-247. Petzing, J.E.; Phillips, C.A. 1998. Geographic distribution: Agkistrodon contortrix (Copperhead). Herpetological Review 29(2): 111. Pitts, S.L. 2015. Natural history notes: Crotalus horridus (Timber Rattlesnake), Agkistrodon contortrix (Copperhead), Thamnophis sirtalis (Common Gartersnake), Nerodia sipedon (Northern Watersnake), Diadophis punctatus (Ring-necked Snake), Storeria dekayi (Dekay's Brownsna Herpetological Review 46(4): 641. Reiserer, R.S. 2002. Stimulus control of caudal luring and other feeding responses: a program for research on visual perception in vipers. pp. 361-383. In: Schuett, G.W.; Höggren, M.; Douglas, M.E.; Greene, H.W. (eds.). Biology of the vipers. Eagle Mountain Publishing, Eagle Mountain. 580 pp. Roberts, K.; Pulay, R. 2005. Geographic distribution: Agkistrodon contortrix contortrix (Southern Copperhead). Herpetological Review 36(1): 81. Robertson, H.C. 1935. Collecting the copperhead. Bull. Nat. Hist. Soc. Maryland 5: 24-30. Savage, T. 1967. The diet of rattlesnakes and copperheads in the Great Smoky Mountains National Park. Copeia 1967: 226-227. Schalk, C.M.; Trees, T.; Pierce, J.B.; Rudolph, D.C. 2018. Food habits of sympatric pitvipers from the West Gulf Coastal Plain, USA. Herpetological Review 49(1): 1-5. Schmidt, D. 2003. Der Kupferkopf (Agkistrodon contortrix). Eine "Anfänger" schlange? Reptilia (D) 8(40): 56-63. Schmidt, D. 2003. Der Kupferkopf (Agkistrodon contortrix). Eine "Anfänger" schlange? 2. Reptilia (D) 8(41): 65-71. Schmidt, D. 2006. Der Kupferkopf - Agkistrodon contortrix. Natur und Tier-Verlag, Münster. 62 pp. Schuett, G.W. 1996. Fighting dynamics of male Copperheads, Agkistrodon contortrix (Serpentes, Viperidae): stress-induced inhibition of sexual behavior in losers. Zoo Biology 15(3): 209-221. Schuett, G.W. 1997. Body size and agonistic experience affect dominance and mating success in male Copperheads. Animal Behaviour 54(1): 213-224. Schuett, G.W.; Duvall, D. 1996. Head lifting by female Copperheads, Agkistrodon contortrix, during courtship: potential mate choice. Animal Behaviour 51(2): 367-373. Sievert, G. 2006. Geographic distribution: Agkistrodon contortix phaeogaster (Osage Copperhead). Herpetological Review 37(4): 496. Smith, A.G. 1940. Notes on the reproduction of the northern copperhead, Agkistrodon mokasen cupreus (Rafinesque), in Pennsylvania. Annals of the Carnegie Museum 28: 77-82. Smith, A.G. 1945. Agkistrodon mokeson mokeson (Daudin) in Pennsylvania. Proceedings of the Pennsylvania Academy of Science 19: 69-72. Smith, C. 1997. Natural history notes: Agkistrodon contortrix contortrix (Southern Copperhead). Diet. Herpetological Review 28(3): 153. Smith, C.F.; Schuett, G.W. 2015. Natural history notes: Agkistrodon contortrix (Copperhead). Reproduction. Herpetological Review 46(1): 98-99. Smith, C.F.; Schuett, G.W. 2015. Putative pair-bonding in Agkistrodon contortrix (Copperhead). Northeastern Naturalist 22(1): N1-N5. Smith, C.F.; Schuett, G.W.; Amarello, M. 2015. Male mating success in a North American pitviper: influence of body size, testosterone, and spatial metrics. Biological Journal of the Linnean Society 115(1): 185-194. Smith, C.F.; Schuett, G.W.; Earley, R.L.; Schwenk, K. 2009. The spatial and reproductive ecology of the Copperhead (Agkistrodon contortrix) at the northeastern extreme of its range. Herpetological Monographs 23: 45-73. Smith, C.F.; Schwenk, K.; Earley, R.L.; Schuett, G.W. 2008. Sexual size dimorphism of the tongue in a North American pitviper. Journal of Zoology (London) 274(4): 367-374. Smith, H.M.; Gloyd, H.K. 1964. Nomenclatural notes on the snake names Scytale, Boa scytale and Agkistrodon mokasen. Herpetologica 19: 280-282. Smith, P.W.; Page, L.M. 1972. Repeated mating of a Copperhead and Timber Rattlesnake. Herpetological Review 4(6): 196. Sochurek, E. 1954. Von meinen Giftschlangen. DATZ (Die Aquarien- und Terrarien-Zeitschrift) 2(5) 1949: 91-92. Sochurek, E. 1955. Einiges über Kupferköpfe (Agkistrodon mokeson). DATZ (Die Aquarien- und Terrarien-Zeitschrift) 8: 127-129. Stadelman, R.E. 1928. The poisoning power of the newborn copperhead with case report. Bulletin of the Antivenin Institute of America 2(3): 67-69. Stechert, R. 1980. Observations on northern snake dens. Herp 15(2): 7-14. Steen, D.A.; Kelly, D. 2017. Interspecific combat observed among viperid snakes. Ecology (Washington, D.C.) 98(6): 1727-1728 Steen, D.A.; McClure, C.J.W.; Sutton, W.B.; Rudolph, D.C.; Pierce, J.B.; Lee, J.R.; Smith, L.L.; Gregory, B.B.; Baxley, D.L.; Stevenson, D.J.; Guyer, C. 2014. Copperheads are common when kingsnakes are not: relationships between the abundances of a predator and one of their prey. Herpetologica 70(1): 69-76. Stiles, K.; Stark, P.; Chiszar, D.; Smith, H.M. 2002. Strike-induced chemosensory searching (SICS) and trail-following behavior in Copperheads (Agkistrodon contortrix). pp. 413-418. In: Schuett, G.W.; Höggren, M.; Douglas, M.E.; Greene, H.W. (eds.). Biology of the vipers. Eagle Mountain Publishing, Eagle Mountain. 580 pp. Strimple, P.D. 1996. Geographic distribution: Agkistrodon contortrix mokasen (Northern Copperhead). USA: Indiana: Dearborn Co. Herpetological Review 27(1): 33. Sutton, W.B.; Bolus, M.G.; Wang, Y. 2009. Natural history notes: Lampropeltis getula nigra (Black Kingsnake). Ophiophagy. Herpetological Review 40(2): 231. Taylor Ream, J.; O'Bryan, C.J. 2008. Geographic distribution: Agkistrodon contortrix (Copperhead). Herpetological Review 39(3): 369-370. Tivador, E.J.; Bonge, S.; Rodríguez, S.; Woniak, J.R.; Lutterschmidt, W.I. 2011. A photographic record of a rare ophidian predation event. Southeastern Naturalist 10(3): 561-562. Vance, T. 1981. Geographic distribution: Agkistrodon contortrix contortrix. Herpetological Review 12(1): 13. Vial, J.L.; Berger, T.L.; McWilliams, W.T. 1977. Quantitative demography of copperheads, Agkistrodon contortrix (Serpentes: Viperidae). Researches Popul. Ecol. Kyoto Univ. 18(2): 223-234. Walters, A.C.; Roberts, D.T.; Covell, C.V. 1996. Natural history notes: Agkistrodon contortrix contortrix (Southern Copperhead). Prey. Herpetological Review 27(4): 202. Weck, R. 2006. Geographic distribution: Agkistrodon contortrix (Copperhead). Herpetological Review 37(1): 107-108. Wright, R.A.S. 1987. Natural history observations on venomous snakes near the peaks of Otter, Bedford County, Virginia. Catesbeiana 7(2): 2-10. Wright, R.A.S.; Gray, W.P. 2000. Copperheads on the York-James Peninsula, Virginia. Catesbeiana 20(1): 23-31. Agkistrodon howardgloydi Conant, R. 1984. A new subspecies of the pit viper, Agkistrodon bilineatus (Reptilia: Viperidae) from Central America. Proceedings of the Biological Society of Washington 97(1): 135-141. Porras, L.W.; Wilson, L.D.; Schuett, G.W.; Reiserer, R.S. 2013. A taxonomic reevaluation and conservation assessment of the common cantil, Agkistrodon bilineatus (Squamata: Viperidae): a race against time. Amphibian and Reptile Conservation 7(1): 48-73. Solorzano, A.; Romero, M.; Guttierrez, J.M.; Sasa, M. 1999. Venom composition and diet of the cantil Agkistrodon bilineatus howardgloydi (Serpentes: Viperidae). Southwestern Naturalist 44(4): 478-483. Agkistrodon laticinctus Allen, W.B. 1955. Some notes on reptiles. Herpetologica 11: 228. Barber, D.M. 2013. Natural history notes: Phrynosoma cornutum (Texas Horned Lizard). Predation. Herpetological Review 44(2): 326. Diener, R.A. 1961. Notes on a bite of the broad-banded copperhead Ancistrodon contortrix laticinctus Gloyd and Conant. Herpetologica 17: 143-144. Dixon, J.R.; Thornton, O.W. 1996. Geographic distribution: Agkistrodon contortrix laticinctus (Broad-banded Copperhead). USA: Texas: Mills Co. Herpetological Review 27(1): 33. Dowling, H.G. 1959. Rattles and hisses and rasping scales. Animal Kingdom 62: 140-142. Gloyd, H.K.; Conant, R. 1934. The broad-banded copperhead: a new subspecies of Agkistrodon mokasen. Occasional Papers of the Museum of Zoology University of Michigan 283: 1-5. Gloyd, H.K.; Conant, R. 1938. The subspecies of the copperhead Agkistrodon mokasen Beauvois. Bull. Acad. Sci. Chicago 5(7): 163-166. Haynie, M.R.; Knight, A. 1998. Color pattern variants in the Trans-Pecos Copperhead. Southwestern Naturalist 43(4): 499-500. Lardie, R.L. 1999. Geographic distribution: Agkistrodon contortrix laticinctus (Broad-banded Copperhead). Herpetological Review 30(2): 112. McCoy, C.J. 1961. Birth season and young of Crotalus scutulatus and Agkistrodon contortrix laticinctus. Herpetologica 17: 140. McCrystal, H.K.; Green, R.J. 1986. Life history notes: Agkistrodon contortrix pictigaster (Trans-Pecos Copperhead). Feeding. Herpetological Review 17(3): 61. Milstead, W.W. 1960. Relict species of the Chihuahuan desert. Southwestern Naturalist 5: 75-88. Owen, J.D.; McGonigle, M.; Hamilton, C.; Meik, J.M. 2014. Geographic distribution: Agkistrodon contortix laticinctus (Broad-banded Copperhead). Herpetological Review 45(4): 662. Radek, G. 1970. Zucht von Agkistrodon contortrix laticinctus. DATZ (Die Aquarien- und Terrarien-Zeitschrift) 23: 374-376. Schlapfer, U. 1971. Beobachtungen an Agkistrodon contortrix pictigaster Gloyd and Conant, 1943. Aqua Terra 8: 131-134. Schuett, G.W.; Kraus, F. 1982. Life history notes: Agkistrodon contortrix pictigaster (Trans-Pecos Copperhead). Neonates. Herpetological Review 13(1): 17. Stewart, B.G. 1984. Life history notes: Agkistrodon contortrix laticinctus (Broad-banded Copperhead). Combat. Herpetological Review 15(1): 17. Strecker, J.K. 1928. The copperhead west of the Pecos River. Contr. Baylor Univ. Mus. Waco Tex. 15: 9. Velde, H. van der 1990. Agkistrodon contortox [contortrix] laticinctus. Litteratura Serpentium (English Edition) 10(3): 149. Werler, J.E. 1951. Miscellaneous notes on the eggs and young of Texan and Mexican reptiles. Zoologica (New York) 36: 37-48. Agkistrodon piscivorus Adams, R.; Crother, B.I. 2015. Natural history notes: Pantherophis spiloides (Gray Ratsnake), Agkistrodon piscivorus (Cottonmouth), Coluber constrictor (North American Racer), Thamnophis proximus (Western Ribbonsnake). Aggregation behavior. Herpetological Review 46(2): 276. Allen, E.R.; Neill, W.T. 1957. The cottonmouth moccasin. Florida Wild Life 1950 [1957]: 8-9. Anderson, P. 1941. The cotton mouth in northern Missouri. Copeia 1941: 178. Arny, S.A. 1949. A survey of the reptiles and amphibians of the Delta National Wildlife Refuge. Absts. Theses Tulane Univ. 1949: 97-98. Bailey, F.C.; Cobb, V.A.; Rainwater, T.R.; Worrall, T.; Klukowski, M. 2009. Adrenocortical effects of human encounters on free-ranging Cottonmouths (Agkistrodon piscivorus). Journal of Herpetology 43(2): 260-266. Baldauf, R.J. 1957. Records of Ancistrodon piscivorus leucostoma (Troost). Copeia 1957: 229. Barbour, R.W. 1956. A study of the cottonmouth, Ancistrodon piscivorus leucostoma Troost, in Kentucky. Transactions of the Kentucky Academy of Science 17(1): 33-41. Bartlett, R.D. 1995. Copperheads, masters of camouflage (with mention of Cottonmouths, Cantils and Gaboon Vipers). Tropical Fish Hobbyist 44(4): 152, 154, 156, 158, 160-163, 165-168, 170-171. Belford, T.J. 2009. Geographic distribution: Agkistrodon piscivorus leucostoma (Western Cottonmouth). Herpetological Review 40(4): 454. Berna, H.J.; Whitfield Gibbons, J. 1991. Life history notes: Agkistrodon piscivorus piscivorus (Eastern Cottonmouth). Diet. Herpetological Review 22(4): 130-131. Blem, C.R. 1981. Reproduction of the eastern Cottonmouth Agkistrodon piscivorus piscivorus (Serpentes: Viperidae) at the northern edge of its range. Brimleyana 5: 117-128. Blem, C.R.; Blem, L.B. 1995. The Eastern Cottonmouth (Agkistrodon piscivorus) at the northern edge of its range. Journal of Herpetology 29(3): 391-398. Booth, W.; Smith, C.F.; Eskridge, P.H.; Hoss, S.K.; Mendelson, J.R.; Schuett, G.W. 2012. Facultative parthenogenesis discovered in wild vertebrates. Biology Letters 8(6): 983-985. Bothner, R.C. 1974. Some observations on the feeding habits of the cottonmouth in southeastern Georgia. Journal of Herpetology 8(3): 257-258. Bothner, R.C.; Zezina, O.N. 1973. Temperatures of Agkistrodon p. piscivorus and Lampropeltis g. getulus in Georgia. HISS News Journal 1(1): 24-25. Brimley, C.S. 1905. A case of snake bite. Journal of the Elisha Mitchell Scientific Society 20(1): 137-138. Brooks, G.C. 2013. A chance encounter with copulating Cottonmouths (Agkistrodon piscivorus). IRCF Reptiles & Amphibians 20(1): 20–22. Burbrink, F.T.; Guiher, T.J. 2015. Considering gene flow when using coalescent methods to delimit lineages of North American pitvipers of the genus Agkistrodon. Zoological Journal of the Linnean Society 173(2): 505-526. Burger, J.; Murray, S.; Gaines, K.F.; Novak, J.M.; Punshon, T.; Dixon, C.; Gochfeld, M. 2006. Element levels in snakes in South Carolina: differences between a control site and exposed site on the Savannah River Site. Environmental Monitoring and Assessment 112(1-3): 35-52. Burkett, R.D. 1966. Natural history of cottonmouth moccasin, Agkistrodon piscivorus (Reptilia). University of Kansas Publications of the Museum of Natural History 17: 435-491. Calmonte, A. 1976. Agkistrodon piscivorus leucostoma im Zimmerterrarium. Aquarium Aqua Terra 10(79): 31-33. Carr, A.F. 1937. The Gulf Island cottonmouths. Proceedings Florida Acad. Sci. 1: 86-90. Carr, A.F.; Carr, M.H. 1942. Notes on the courtship of the cottonmouth moccasin. Proceedings of the New England Zoological Club 20: 1-6. Castleberry, J.S. 2007. Natural history notes: Agkistrodon piscivorous piscivorous [piscivorus] (Eastern Cottonmouth). Brumation. Herpetological Review 38(2): 202-203. Cheatham, M. 1988. Geographic distribution: Agkistrodon piscivorus leucostoma (Western Cottonmouth). USA: Texas: Navarro Co. Herpetological Review 19(1): 19. Christensen, T.P.; Gallegos, J.B. 2010. Agkistrodon piscivorus piscivorus (Eastern Cottonmouth). Catesbeiana 30(2): 83-84. Cochran, P.A. 2008. A Cottonmouth (Agkistrodon piscivorus) in Minnesota, and historical reports of other pit vipers unexpected in the upper Midwest. Northeastern Naturalist 15(3): 461-464. Colbert, J.E.; Andrews, K.M.; Norton, T.M. 2014. Natural history notes: Agkistrodon piscivorus (Cottonmouth). Diet and prey size. Herpetological Review 45(4): 703-704. Collins, J.T. 1977. Rediscovery of the Western Cottonmouth (Agkistrodon piscivorus leucostoma) in southeastern Kansas. Transactions of the Kansas Academy of Sciences 80(1-2): 71-74. Colvin, R. 2011. Geographic distribution: Agkistrodon piscivorus (Cottonmouth). Herpetological Review 42(1): 113. Colvin, R.; Dennison, J. 2012. Geographic distribution: Agkistrodon piscivorus leucostoma (Western Cottonmouth). Herpetological Review 43(1): 104-105. Conant, R. 1929. Notes on a water moccasin in captivity (Agkistrodon piscivorus). Bulletin of the Antivenin Institute of America 3: 61-64. Conant, R. 1934. Two rattlesnakes killed by a cottonmouth. Science (New York) 80(2078): 382. Connior, M.B. 2014. Geographic distribution: Agkistrodon piscivorus leucostoma (Western Cottonmouth). Herpetological Review 45(4): 662. Crane, A.L.; Greene, B.D. 2008. The effect of reproductive condition on thermoregulation in female Agkistrodon piscivorus near the northwestern range limit. Herpetologica 64(2): 156-167. Cross, C.L. 2002. Natural history notes: Agkistrodon piscivorus piscivorus (Eastern Cottonmouth). Diet. Herpetological Review 33(1): 55-56. Cross, C.L.; Marshall, C. 1998. Natural history notes: Agkistrodon piscivorus piscivorus (Eastern Cottonmouth). Predation. Herpetological Review 29(1): 43. Cross, C.L.; Petersen, C.E. 2001. Modeling snake microhabitat from radiotelemetry studies using polytomous logistic regression. Journal of Herpetology 35(4): 590-597. Cundall, D.; Brainerd, E.L.; Constantino, J.; Deufel, A.; Grapski, D.; Kley, N.J. 2012. Drinking in snakes: resolving a biomechanical puzzle. Journal of Experimental Zoology Part A-Ecological Genetics and Physiology 317A(3): 152-172. Cypert, E. 1961. The effect of fires in the Okefenokee Swamp in 1954 and 1955. American Midland Naturalist 66: 485-503. Davis, B.; Birkhead, R.D. 2013. Natural history notes: Terrapene carolina (Eastern Box Turtle). Diet. Herpetological Review 44(4): 659. Davis, J.B. 2002. Natural history notes: Agkistrodon piscivorus (Cottonmouth). Predation. Herpetological Review 33(2): 136-137. Delisle, Z.J.; Delgado-Acevedo, J.; Lutterschmidt, W.I. 2018. Natural history notes: Agkistrodon piscivorus (Northern Cottonmouth). Predation. Herpetological Review 49(2): 333. Delisle, Z.J.; Delgado-Acevedo, J.; Lutterschmidt, W.I. 2018. Natural history notes: Agkistrodon piscivorus (Western Cottonmouth). Predation. Herpetological Review 49(3): 541. Dodge, D.; Miller, B.T. 2013. Geographic distribution: Agkistrodon piscivorus leucostoma (Western Cottonmouth). Herpetological Review 44(2): 274. Douglas, M.E.; Douglas, M.R.; Schuett, G.W.; Porras, L.W. 2009. Climate change and evolution of the New World pitviper genus Agkistrodon (Viperidae). Journal of Biogeography 36(6): 1164-1180. Dowling, H.G. 1956. Geographic relations of Ozarkian amphibians and reptiles. Southwestern Naturalist 1(4): 174-189. Dowling, H.G. 1959. Rattles and hisses and rasping scales. Animal Kingdom 62: 140-142. Drda, W.J.; Kluepfel, D.A. 1979. Geographic distribution: Agkistrodon piscivorus leucostoma (Western Cottonmouth). USA: Missouri: Crawford Co. Herpetological Review 10(4): 118. Dundee, H.A.; Burger, W.L. 1948. A denning aggregation of the Western Cottonmouth. Natural History Miscellanea (Chicago) 21: 1-2. Dunson, W.A.; Freda, J. 1985. Water permeability of the skin of the amphibious snake, Agkistrodon piscivorus. Journal of Herpetology 19(1): 93-98. Durso, A.M.; Willson, J.D.; Winne, C.T. 2011. Needles in haystacks: estimating detection probability and occupancy of rare and cryptic snakes. Biological Conservation 144(5): 1508-1515. Eskew, E.A.; Willson, J.D.; Winne, C.T. 2009. Ambush site selection and ontogenetic shifts in foraging strategy in a semi-aquatic pit viper, the Eastern Cottonmouth. Journal of Zoology (London) 277(2): 179-186. Estes, D.; Scott, A.F.; Crabtree, T. 2010. Geographic distribution: Agkistrodon piscivorus leucostoma (Western Cottonmouth). USA: Tennessee. Herpetological Review 41(3): 378-379. Ettling, J. 1988. Geographic distribution: Agkistrodon piscivorus leucostoma (Western Cottonmouth). Herpetological Review 19(3): 60. Fallandy, M. 1968. The water moccasin. Herpetology 2(3): 25. Ford, N.B. 2002. Ecology of the Western Cottonmouth (Agkistrodon piscivorus leucostoma) in northeastern Texas. pp. 167-177. In: Schuett, G.W.; Höggren, M.; Douglas, M.E.; Greene, H.W. (eds.). Biology of the vipers. Eagle Mountain Publishing, Eagle Mountain. 580 pp. Ford, N.B.; Brischoux, F.; Lancaster, D. 2004. Reproduction in the Western Cottonmouth, Agkistrodon piscivorus leucostoma, in a floorplain [floodplain] forest. Southwestern Naturalist 49(4): 465-471. Franklin, C.J. 2006. Natural history notes: Agkistrodon piscivorus leucostoma (Western Cottonmouth). Diet. Herpetological Review 37(1): 93. Freeman, H.W. 1955. Part V. The amphibia and reptilia of the Savannah river project area. 2. Chelonia. 3. Crocodilia, Sauria and Serpentes. U.S. Cur. Publ. Biol. 1(4): 239-244, 275-291. Funk, R.S. 1964. Birth of a brood of Western Cottonmouths, Agkistrodon piscivorous leucostoma. Transactions of the Kansas Academy of Sciences 67: 199. Gibbons, J.W.; Dorcas, M.E. 2002. Defensive behavior of Cottonmouths (Agkistrodon piscivorus) toward humans. Copeia 2002(1): 195-198. Glaudas, X. 2004. Do Cottonmouths (Agkistrodon piscivorus) habituate to human confrontations? Southeastern Naturalist 3(1): 129-138. Glaudas, X.; Andrews, K.M.; Willson, J.D.; Gibbons, J.W. 2007. Migration patterns in a population of Cottonmouths (Agkistrodon piscivorus) inhabiting an isolated wetland. Journal of Zoology (London) 271(2): 119-124. Glaudas, X.; Wagner, D.L. 2004. Natural history notes: Agkistrodon piscivorus piscivorus (Eastern Cottonmouth). Diet. Herpetological Review 35(3): 272. Glaudas, X.; Whitfield-Gibbons, J. 2005. Do thermal cues influence the defensive strike of Cottonmouths (Agkistrodon piscivorus)? Amphibia-Reptilia 26(2): 264-267. Glaudas, X.; Winne, C.T. 2007. Do warning displays predict striking behavior in a viperid snake, the Cottonmouth (Agkistrodon piscivorus)? Canadian Journal of Zoology 85(4): 574-578. Glaudas, X.; Winne, C.T.; Fedewa, L.A. 2006. Ontogeny of anti-predator behavioral habituation in Cottonmouths (Agkistrodon piscivorus). Ethology 112(6): 608-615. Goodman, J.H. 1958. Material ingested by the cottonmouth, Agkistrodon piscivorus, at Reelfoot Lake, Tennessee. Copeia 1958: 149. Govorchin, R.E. 1965. America's poisonous snakes. Frontiers 29: 70-73. Graham, S.P. 2013. How frequently do Cottonmouths (Agkistrodon piscivorus) bask in trees? Journal of Herpetology 47(3): 428-431. Graham, S.P. 2015. Geographic distribution: Agkistrodon piscivorus (Cottonmouth). Herpetological Review 46(4): 571. Graham, S.P.; Sorrell, G.G. 2010. Natural history notes: Agkistrodon piscivorus (Cottonmouth). Intersexual combat. Herpetological Review 41(3): 359-360. Guiher, T.J.; Burbrink, F.T. 2008. Demographic and phylogeographic histories of two venomous North American snakes of the genus Agkistrodon. Molecular Phylogenetics and Evolution 48(2): 543-553. Gutzke, W.H.N. 2001. Field observations confirm laboratory reports of defense responses by prey snakes to the odors of predatory snakes. pp. 285-288. In: Marchlewska-Koj, A.; Lepri, J.J.; Mueller-Schwarze, D. (eds.). Chemical signals in vertebrates 9. Kluwer Academic/Plenum Publishers, New York. 482 pp. Hall, D.W. 2008. Natural history notes: Agkistrodon piscivorus leucostoma (Western Cottonmouth). Scavenging. Herpetological Review 39(4): 465. Hamel, P.B. 1996. Natural history notes: Agkistrodon piscivorus leucostoma (Western Cottonmouth). Carrion feeding. Herpetological Review 27(3): 143. Hamilton, B.; Colvin, R. 2009. Geographic distribution: Agkistrodon piscivorus (Cottonmouth). Herpetological Review 40(4): 454. Hamilton, W.J.; Pollack, J.A. 1955. The food of some crotalid snakes from Fort Benning, Georgia. Natural History Miscellanea 140: 1-4. Hampton, P.M. 2005. Natural history notes: Agkistrodon piscivorus leucostoma (Western Cottonmouth). Morphology. Herpetological Review 36(4): 454-455. Hampton, P.M.; Ford, N.B. 2005. Natural history notes: Agkistrodon piscivorus leucostoma (Western Cottonmouth). Reproduction. Herpetological Review 36(4): 455. Heatwole, H.; King, P.; Levine, S.G. 2007. Laterality in coiling behaviour of snakes: another interpretation. Laterality 12(6): 536-542. Heatwole, H.; Poran, N.; King, P. 1999. Ontogenetic changes in the resistance of Bullfrogs (Rana catesbeiana) to the venom of Copperheads (Agkistrodon contortrix contortrix) and Cottonmouths (Agkistrodon piscivorus piscivorus). Copeia 1999(3): 808-814. Hein, A.M.; Guyer, C. 2009. Body temperatures of over-wintering Cottonmouth snakes: hibernaculum use and inter-individual variation. Journal of the Alabama Academy of Science 80(1): 35-44. Herr, M.W.; Graham, S.P. 2014. Natural history notes: Agkistrodon piscivorus (Cottonmouth). Diet. Herpetological Review 45(3): 511. Hill, J.G.; Beaupre, S.J. 2008. Body size, growth, and reproduction in a population of Western Cottonmouths (Agkistrodon piscivorus leucostoma) in the Ozark Mountains of northwest Arkansas. Copeia 2008(1): 105-114. Hill, J.G.; Zaidan, F.; Beaupre, S.J.; Montgomery, C.E. 2005. Geographic distribution: Agkistrodon piscivorus leucostoma (Western Cottonmouth). Herpetological Review 36(1): 81. Hill, R.L. 2011. Geographic distribution: Agkistrodon piscivorus piscivorus (Eastern Cottonmouth). Herpetological Review 42(3): 392. Himes, J.G. 2003. Diet composition of Nerodia sipedon (Serpentes: Colubridae) and its dietary overlap with, and chemical recognition of Agkistrodon piscivorus (Serpentes: Viperidae). Amphibia-Reptilia 24(2): 181-188. Himes, J.G. 2004. The non-fish, vertebrate diet of sympatric populations of the Cottonmouth (Agkistrodon piscivorus) and Northern Watersnake (Nerodia sipedon). Herpetological Review 35(2): 123-128. Hoss, S.K.; Clark, R.W. 2014. Mother Cottonmouths (Agkistrodon piscivorus) alter their antipredator behavior in the presence of neonates. Ethology 120(9): 933-941. Hoss, S.K.; García, M.J.; Earley, R.L.; Clark, R.W. 2014. Fine-scale hormonal patterns associated with birth and maternal care in the Cottonmouth (Agkistrodon piscivorus), a North American pitviper snake. General and Comparative Endocrinology 208: 85-93. Hulme, J.H. 1952. Observation of a snake bite by a cottonmouth moccasin. Herpetologica 8: 51. Jadin, R.C.; Coleman, J.L. 2007. New county records of amphibians and reptiles from Rains County, Texas. Herpetological Review 38(2): 246-247. Kardong, K.V. 1975. Prey capture in the cottonmouth snake (Agkistrodon piscivorus). Journal of Herpetology 9(2): 169-175. Keck, M.B. 1998. Habitat use by semi-aquatic snakes at ponds on a reclaimed strip mine. Southwestern Naturalist 43(1): 13-19. Keiser, E.D. 1993. Life history notes: Agkistrodon piscivorus leucostoma (Western Cottonmouth). Behavior. Herpetological Review 24(1): 34. Klimstra, W.D. 1959. Food habits of the cottonmouth in southern Illinois. Natural History Miscellanea (Chicago) 168: 1-8. Knight, J.L. 2009. Geographic distribution: Agkistrodon piscivorus piscivorus (Eastern Cottonmouth). Herpetological Review 40(4): 454-455. Kofron, C.P. 1978. Foods and habitats of aquatic snakes (Reptilia, Serpentes) in a Louisiana swamp. Journal of Herpetology 12(4): 543-554. Kofron, C.P. 1979. Reproduction of aquatic snakes in south central Louisiana. Herpetologica 35(1): 44-50. Koons, D.N.; Birkhead, R.D.; Boback, S.M.; Williams, M.I.; Greene, M.P. 2009. The effect of body size on Cottonmouth (Agkistrodon piscivorus) survival, recapture probability, and behavior in an Alabama swamp. Herpetological Conservation and Biology 4(2): 221-235. Kornalik, F. 1965. Amphigonia retardata bei einer Wassermokassinschlange. Zoologische Garten (Leipzig) 29 [1963-64]: 272. Kuhns, A.R.; Phillips, C.A.; Dreslik, M.J.; Corcoran, M.; Crawford, J.A. 2018. Natural history notes: Agkistrodon piscivorus (Cottonmouth). Diet. Herpetological Review 49(2): 332-333. Kunzl, H. 1953. Über Paarungsverhalten und Zucht der Wassermokassinschlange (Agkistrodon piscivorus Lacepede 1789) in Gefangenschaft. DATZ (Die Aquarien- und Terrarien-Zeitschrift) 6: 262-265. Langford, G.J.; Borden, J.A. 2007. Natural history notes: Amphiuma tridactylum (Three-toed Amphiuma). Cottonmouth envenomation. Herpetological Review 38(2): 173. Laughlin, H.E. 1959. Stomach contents of some aquatic snakes from Lake McAlester, Pittsburgh County, Oklahoma. Texas Journal of Science 11(1): 83-85. Lee, J.R. 1996. Natural history notes: Agkistrodon piscivorus piscivorus (Eastern Cottonmouth). Coloration. Herpetological Review 27(1): 22. Lee, J.R.; McCoy, L.; Walker, A. 2014. Natural history notes: Agkistrodon piscivorus (Cottonmouth). Diet. Herpetological Review 45(4): 703. Lueth, F.X. 1939. A case of poisoning in the Cottonmouth moccasin (Agkistrodon piscivorus). Transactions of the Illinois State Academy of Science 32(2): 222-223. Lutterschmidt, W.I.; Nydam, R.L.; Greene, H.W. 1996. County record for the woodland vole, Microtus pinetorum (Rodentia: Muridae), LeFlore County, OK, with natural history notes on a predatory snake. Proceedings of the Oklahoma Academy of Science 76: 93-94. Lutterschmidt, W.I.; Schaefer, J.F. 1996. Mist netting: adapting a technique from ornithology for sampling semi-aquatic snake populations. Herpetological Review 27(3): 131-132. Makeyev, V.M. 1977. [On reproduction in Agkistrodon piscivorus in captivity]. pp. 141-143. In: Darevsky, I.S. [Fourth All-Union Herpetological Conference. Questions in Herpetology]. Akademiya Nauk SSSR, Zoologicheskij Institut. Izdatel'stvo 'Nauka', Leningrad. 243 pp. (In Russian). Martin, J.R.; Wood, J.T. 1955. Notes on the poisonous snakes of the Dismal Swamp area. Herpetologica 11: 237-238. McAllister, C.T. 2017. Natural history notes: Agkistrodon piscivorus leucostoma (Western Cottonmouth). Diet. Herpetological Review 48(2): 443-444. McAllister, C.T.; Kessler, J.E. 2001. Geographic distribution: Agkistrodon piscivorus leucostoma (Western Cottonmouth). Herpetological Review 32(2): 121. McAllister, C.T.; Robison, H.W. 2012. New geographic distribution records for amphibians and reptiles from Arkansas, USA. Herpetological Review 43(2): 316-317. Mccardle, L.D.; Fontenot, C.L. 2016. The influence of thermal biology on road mortality risk in snakes. Journal of Thermal Biology 56: 39-49. McCracken, S.F.; Dixon, J.R.; Forstner, M.R.J. 2005. Geographic distribution: Agkistrodon piscivorus leucostoma (Western Cottonmouth). Herpetological Review 36(3): 338. McKnight, D.T.; Harmon, J.R.; McKnight, J.L.; Ligon, D.B. 2014. Notes on the diets of seven sympatric snakes in the genera Agkistrodon, Nerodia, Sistrurus, and Thamnophis. Herpetology Notes 7: 171-177. Metcalf, C.K.; Pezold, F.; Crump, B.G. 2007. Natural history notes: Agkistrodon piscivorus leucostoma (Western Cottonmouth). Activity. Herpetological Review 38(4): 465-466. Miller, L.R.; Gutzke, W.H.N. 1999. The role of the vomeronasal organ of crotalines (Reptilia: Serpentes: Viperidae) in predator detection. Animal Behaviour 58(1): 53-57. Montgomery, W.B. 2004. Geographic distribution: Agkistrodon piscivorus leucostoma (Western Cottonmouth). Herpetological Review 35(3): 290. Montgomery, W.B. 2004. Geographic distribution: Agkistrodon piscivorus leucostoma (Western Cottonmouth). Herpetological Review 35(4): 409-410. Mount, R.H.; Cecil, J. 1982. Life history notes: Agkistrodon piscivorus (Cottonmouth). Hybridization. Herpetological Review 13(3): 95-96. Neal, T.; Steen, D.A. 2015. Natural history notes: Agkistrodon piscivorus (cottonmouth). Predation. Herpetological Review 46(2): 264. Neill, W.T. 1947. Size and habits of the cottonmouth moccasin. Herpetologica 3(6): 203-205. Neill, W.T. 1951. Notes on the natural history of certain North American snakes. Publ. Res. Div. Ross Allen Rept. Inst. 1(5): Unpaginated. Newman, A.C. 1965. Further observations from Umtali snake park. Journal of the Herpetological Association of Rhodesia 23/24: 55-57. Palis, J.G. 2014. Natural history notes: Agkistrodon piscivorus (Cottonmouth). Fire mortality. Herpetological Review 45(4): 704-705. Palis, J.G. 2017. Natural history notes: Agkistrodon piscivorus (Cottonmouth). Diet. Herpetological Review 48(2): 443. Parlos, J.A.; Duvall-Jisha, J.H.; Forstner, M.R.J. 2006. Geographic distribution: Agkistrodon piscivorus leucostoma (Western Cottonmouth). Herpetological Review 37(4): 496. Parrish, H.M.; Donnell, H.D. 1967. Bites by cottonmouths (Ancistrodon piscivorus) in the United States. Sth. Med. J. 60: 429-34. Penning, D.A.; Baxter, S.; Moon, B.R. 2016. Debunking the viper's strike: harmless snakes kill a common assumption. Biology Letters 12(3): 20160011. Perry, J. 1978. An observation of 'dance' behaviour in the Western Cottonmouth, Agkistrodon piscivorus leucostoma (Reptilia, Serpentes, Viperidae). Journal of Herpetology 12(3): 429-431. Petzold, H.G. 1963. Notizen zur Fortpflanzungsbiologie und Jugendentwicklung zweier Grubenottern (Serpentes: Crotalidae: Crotalus atrox und Agkistrodon p. piscivorus). Bijdragen tot de Dierkunde 33: 61-69. Pitts, S.L. 2015. Natural history notes: Agkistrodon piscivorus (cottonmouth). Cold tolerance. Herpetological Review 46(3): 441. Platt, S.G.; Rainwater, T.R. 2000. Natural history notes: Agkistrodon piscivorus (Cottonmouth). Diet. Herpetological Review 31(4): 244. Preston, R.; Stevenson, D.J. 2011. Geographic distribution: Agkistrodon piscivorus (Cottonmouth). Herpetological Review 42(3): 392. Price, M.S.; Laduc, T.J. 2009. Natural history notes: Agkistrodon piscivorus leucostoma (Western Cottonmouth). Diet. Herpetological Review 40(1): 93. Rainwater, T.R.; Anderson, T.A.; Platt, S.G.; Smith, P.N. 2006. Natural history notes: Agkistrodon piscivorus leucostoma (Western Cottonmouth). Diet. Herpetological Review 37(2): 228. Rainwater, T.R.; Waldron, J.L.; Welch, S.M.; Platt, S.G. 2007. Natural history notes: Agkistrodon piscivorus piscivorus (Eastern Cottonmouth). Predation. Herpetological Review 38(2): 202. Ramsey, L.W. 1948. Combat dance and range extension of Agkistrodon piscivorus leucostoma. Herpetologica 4(6): 228. Robison, H.W.; McAllister, C.T. 2006. Geographic distribution: Agkistrodon piscivorus leucostoma (Western Cottonmouth). Herpetological Review 37(4): 496. Roble, S.M. 1995. Agkistrodon piscivorus piscivorus (Eastern Cottonmouth). Catesbeiana 15(1): 24. Rose, F.L.; Simpson, T.R.; Ott, J.R.; Manning, R.W. 2010. Use of space by Western Cottonmouths (Agkistrodon piscivorus) inhabiting a variable-flow stream. Southwestern Naturalist 55(2): 160-166. Rose, F.L.; Simpson, T.R.; Ott, J.R.; Manning, R.W.; Martin, J. 2010. Survival of Western Cottonmouths (Agkistrodon piscivorus leucostoma) in a pulsing environment. Southwestern Naturalist 55(1): 11-15. Roth, E.D. 2003. 'Handedness' in snakes? Lateralization of coiling behaviour in a Cottonmouth, Agkistrodon piscivorus leucostoma, population. Animal Behaviour 66(2): 337-341. Roth, E.D. 2005. Buffer zone applications in snake ecology: a case study using Cottonmouths (Agkistrodon piscivorus). Copeia 2005(2): 399-402. Roth, E.D. 2005. Spatial ecology of a Cottonmouth (Agkistrodon piscivorus) population in east Texas. Journal of Herpetology 39(2): 308-312. Roth, E.D.; Ginn, W.D.W.; Vitt, L.J.; Lutterschmidt, W.I. 2003. Natural history notes: Agkistrodon piscivorus leucostoma (Western Cottonmouth). Diet. Herpetological Review 34(1): 60. Roth, E.D.; Johnson, J.A. 2004. Size-based variation in antipredator behavior within a snake (Agkistrodon piscivorus) population. Behavioral Ecology 15(2): 365-370. Roth, E.D.; Lutterschmidt, W.I. 2011. Experimental validation of sex differences in spatial behavior patterns of free-ranging snakes: implications for social interactions. Ethology 117(10): 852-858. Rundquist, E.M.; Stegall, E.; Grow, D.; Gray, P. 1978. New herpetological records from Kansas. Transactions of the Kansas Academy of Sciences 81(1): 73-77. Savitzky, B.A.C. 1992. Laboratory studies on piscivory in an opportunistic pitviper, the cottonmouth, Agkistrodon piscivorus. pp. 347-368. In: Campbell, J.A. & Brodie, E.D. (eds.). Biology of the pitvipers. Selva, Tyler, Texas. 467 pp. Schalk, C.M.; Trees, T.; Pierce, J.B.; Rudolph, D.C. 2018. Food habits of sympatric pitvipers from the West Gulf Coastal Plain, USA. Herpetological Review 49(1): 1-5. Shelton, D.N. 1996. Mussels, a snake and a wounded collector. American Conchologist 24(1): 19. Siegel, D.S.; Sever, D.M. 2006. Utero-muscular twisting and sperm storage in viperids. Herpetological Conservation and Biology 1(2): 87-92. Siegel, D.S.; Sever, D.M.; Rheubert, J.L.; Gribbins, K.M. 2009. Reproductive biology of Agkistrodon piscivorus Lacepede (Squamata, Serpentes, Viperidae, Crotalinae). Herpetological Monographs 23: 74-107. Sochurek, E. 1952. Erlebnisse mit Wassermokassins Agkistrodon piscivorus. DATZ (Die Aquarien- und Terrarien-Zeitschrift) 5(12): 327-328. Sochurek, E. 1954. Von meinen Giftschlangen. DATZ (Die Aquarien- und Terrarien-Zeitschrift) 2(5) 1949: 91-92. Spinner, L. 2017. Auf der Lauer: Wassermokassinottern in Natur und Terrarium. Reptilia (D) 22(124): 34-36, 39-40. Stabler, R.M. 1951. Some observations on two cottonmouth moccasins made during twelve and fourteen years of captivity. Herpetologica 7: 89-92. Steehouder, T. 1988. Agkistrodon piscivorus, the Cottonmouth. Litteratura Serpentium (English Edition) 8(4): 173-181. Steen, D.A.; Kelly, D. 2017. Interspecific combat observed among viperid snakes. Ecology (Washington, D.C.) 98(6): 1727-1728 Strickland, J.L.; Parkinson, C.L.; McCoy, J.K.; Ammerman, L.K. 2014. Phylogeography of Agkistrodon piscivorus with emphasis on the western limit of its range. Copeia 2014(4): 639-649. Strimple, P. 1994. Maintenance, feeding, and growth of a juvenile Eastern Cottonmouth, Agkistrodon piscivorus piscivorus, during its first eighteen months in captivity. Litteratura Serpentium (English Edition) 14(3): 70-73. Tavano, J.J.; Pitt, A.L.; Nickerson, M.A. 2007. Natural history notes: Agkistrodon piscivorus leucostoma (Western Cottonmouth). Behavior. Herpetological Review 38(2): 202. Thornton, O.W. 1993. Envenomation of a Western Diamondback Rattlesnake by a Western Cottonmouth. Bulletin of the Chicago Herpetological Society 28(6): 117. Tiersch, T.R.; Figiel, C.R. 1991. A triploid snake. Copeia 1991(3): 838-841. Triplett, J.R. 1991. Geographic distribution: Agkistrodon piscivorus leucostoma (Western Cottonmouth). USA: Kansas: Cherokee Co. Herpetological Review 22(4): 135. Trutnau, L. 1997. Zur Biologie, Haltung und Nachzucht der Wassermokassinotter Agkistrodon piscivorus (Lacepede, 1789). Herpetofauna (Weinstadt) 19(108): 25-34. Vaughan, R.K.; Baumgardner, G.D. 1996. Geographic distribution: Agkistrodon piscivorus leucostoma (Western Cottonmouth). USA: Texas: Blanco Co. Herpetological Review 27(1): 33. Vincent, S.E.; Herrel, A.; Irschick, D.J. 2004. Ontogeny of intersexual head shape and prey selection in the pitviper Agkistrodon piscivorus. Biological Journal of the Linnean Society 81(1): 151-159. Vincent, S.E.; Herrel, A.; Irschick, D.J. 2004. Sexual dimorphism in head shape and diet in the Cottonmouth snake (Agkistrodon piscivorus). Journal of Zoology (London) 264(1): 53-59. Vincent, S.E.; Herrel, A.; Irschick, D.J. 2005. Comparisons of aquatic versus terrestrial predatory strikes in the pitviper, Agkistrodon piscivorus. Journal of Experimental Zoology Part A Comparative Experimental Biology 303A(6): 476-488. Walsh, E.; Gabrey, S.; McCallum, M.L. 2005. Natural history notes: Agkistrodon piscivorus (Western Cottonmouth). Foraging behavior. Herpetological Review 36(2): 186. Watson, S.H. 2006. Agkistrodon piscivorus piscivorus (Eastern Cottonmouth). Catesbeiana 26(2): 75. Weidler, J.M.; Thies, M.L.; Smith-Herron, A.; Tivador, E.J.; Roth, E.D.; Lutterschmidt, W.I. 2017. Natural history notes: Agkistrodon piscvorus leucostoma (Western Cottonmouth). Unusual field injury. Herpetological Review 48(3): 664-665. Wharton, C.H. 1960. Birth and behavior of a brood of cottonmouths, Agkistrodon piscivorus piscivorus with notes on tail-luring. Herpetologica 16: 125-129. Williams, M.I.; Birkhead, R.D.; Moosman, P.R.; Boback, S.M. 2004. Natural history notes: Agkistrodon piscivorus (Cottonmouth). Diet. Herpetological Review 35(3): 271-272. Willson, J.D.; Winne, C.T.; Dorcas, M.E.; Gibbons, J.W. 2006. Post-drought responses of semi-aquatic snakes inhabiting an isolated wetland: insights on different strategies for persistence in a dynamic habitat. Wetlands 26(4): 1071-1078. Willson, J.D.; Winne, C.T.; Keck, M.B. 2008. Empirical tests of biased body size distributions in aquatic snake captures. Copeia 2008(2): 401-408. Wilson, A.B.; Minton, S.A. 1983. Geographic distribution: Agkistrodon piscivorus leucostoma (Western Cottonmouth). Herpetological Review 14(3): 84. Yager, L.; Yager, G. 2005. Natural history notes: Agkistrodon piscivorus (Cottonmouth). Diet. Herpetological Review 36(1): 67. Yerger, R.W. 1953. Yellow bullhead preyed upon by cottonmouth moccasin. Copeia 1953: 115. Zaidan, F. 2001. Western Cottonmouth (Agkistrodon piscivorus leucostoma) sexual dimorphism and dichromatism in northwestern Arkansas. Herpetological Natural History 8(1): 79-82. Zaidan, F.; Kreider, D.L.; Beaupre, S.J. 2003. Testosterone cycles and reproductive energetics: Implications for northern range limits of the Cottonmouth (Agkistrodon piscivorus leucostoma). Copeia 2003(2): 231-240. Zamudio, K.R.; Hardy, D.L.; Martins, M.; Greene, H.W. 2000. Fang tip spread, puncture distance, and suction for snake bite. Toxicon 38(5): 723-728. Agkistrodon russeolus Charruau, P.; Escobedo-Galván, A.H.; Koller-González, J.M.; Morales-Garduza, M.A. 2014. Geographic distribution: Agkistrodon russeolus (Yucatecan Cantil). Herpetological Review 45(4): 662. Porras, L.W.; Wilson, L.D.; Schuett, G.W.; Reiserer, R.S. 2013. A taxonomic reevaluation and conservation assessment of the common cantil, Agkistrodon bilineatus (Squamata: Viperidae): a race against time. Amphibian and Reptile Conservation 7(1): 48-73. Agkistrodon taylori Bryson, R.W.; Mendoza-Quijano, F. 2007. Cantils of Hidalgo and Veracruz, Mexico, with comments on the validity of Agkistrodon bilineatus lemosespinali. Journal of Herpetology 41(3): 536-539. Burchfield, P.M. 1982. Additions to the natural history of the crotaline snake Agkistrodon bilineatus taylori. Journal of Herpetology 16(4): 376-382. Burger, W.L.; Robertson, W.B. 1951. A new subspecies of the Mexican mocassin, Agkistrodon bilineatus. University of Kansas Science Bulletin 34(1): 213-218. Fernández-Badillo, L.; Hernández-Hernández, G.; Torres-Angeles, F.; Domínguez-Vega, H.; Porras, L.W. 2016. Miscellaneous notes: Presence of Agkistrodon taylori in disturbed areas (cultivated fields) in the municipality of San Felipe Orizatlán, Hidalgo, Mexico. Mesoamerican Herpetology 3(3): 804-808. Jungnickel, J. 2003. Zur Haltung und Vermehrung der Mexikanischen Mokassinotter Agkistrodon taylori Burger & Robertson, 1951. Sauria (Berlin) 25(4): 19-22. O'Shea, M. 1998. The first UK captive breeding of Taylor's ornate cantil. Agkistrodon bilineatus taylori. Herptile 23(1): 16-20. O'Shea, M.; Slater, S.; Wood, J. 2012. Herpetoculture notes: Agkistrodon taylori (Taylor's Cantil). Longevity. Herpetological Review 43(4): 609. Strimple, P. 1995. Comments on caudal luring in snakes with observations on this behaviour in two subspecies of cantils, Agkistrodon bilineatus ssp. Litteratura Serpentium (English Edition) 15(3): 74-77. Terán-Juárez, S.A.; García-Padilla, E. 2014. Geographic distribution: Agkistrodon taylori (Taylor's Cantil). Herpetological Review 45(2): 284. Titus, V.R.; Foster, C.D. 2015. An incidence of twinning in Taylor's Cantil (Agkistrodon taylori) at the Wildlife Conservation Society's Bronx Zoo. Herpetological Review 46(3): 371-373. Tovar Tovar, H.; Mendoza-Quijano, F. 2001. Geographic distribution: Agkistrodon taylori (Taylor's Cantil). Herpetological Review 32(4): 276-277.