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Taxonomy of the genus Diadophis Biodiversity of the family Colubridae

Bibliography of the genus
Diadophis (Ring-necked Snake)

(Reptilia: Serpentes: Colubridae)

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.


Diadophis punctatus

Adams, D.C. 1999. Natural history notes: Plethodon hoffmani (Valley and Ridge Salamander). Predation. Herpetological Review 30(3): 160.

Anton, T.G. 1994. Observation of predatory behavior in the regal ringnecked snake (Diadophis punctatus regalis) under captive conditions. Bulletin of the Chicago Herpetological Society 29(5): 95.

Auth, D.L.; Scott, C. 1996. Geographic distribution: Diadophis punctatus acricus (Key Ringneck Snake). Herpetological Review 27(1): 33.

Baird, T.A. 2000. Natural history notes: Crotaphytus collaris (Eastern Collared Lizard) and Diadophis punctatus (Ringneck Snake). Predator-prey. Herpetological Review 31(2): 104.

Banta, B.H.; Frantz, T.C. 1957. A second regal ringneck snake from Nevada. Herpetologica 13: 192.

Bartareau, T.M.; Meshaka, W.E. 2013. The handling and ingestion of a Brown Anole (Anolis sagrei) egg by a Southern Ringneck Snake (Diadophis punctatus punctatus). Collinsorum 2(3/4): 16.

Bauder, J.M. 2008. Geographic distribution: Diadophis punctatus regalis (Regal Ring-necked Snake). Herpetological Review 39(1): 111.

Becker, C.; Sliwinski, R. 1990. Geographic distribution: Diadophis punctatus edwardsii (Northern Ringneck Snake). Herpetological Review 21(4): 97.

Behrendt, M. 2016. New herpetological county records from Perry County, Ohio, USA. Herpetological Review 47(1): 90-91.

Bell, C.J.; Bowden, J.K. 1995. Natural history notes: Diadophis punctatus modestus (San Bernardino Ringneck Snake). Diet. Herpetological Review 26(1): 38.

Birkhead, R.D. 2011. Geographic distribution: Diadophis punctatus (Ring-necked Snake). Herpetological Review 42(4): 572.

Black, J.H.; Short, J. 1976. Geographic distribution: Diadophis punctatus arnyi (Prairie Ringneck Snake). USA: Oklahoma: Lincoln Co. Herpetological Review 7(3): 123.

Blanchard, F.N. 1923. Comments on ring-neck snakes (Genus Diadophis), with diagnoses of new forms. Occasional Papers of the Museum of Zoology University of Michigan 142: 1-9.

Blanchard, F.N. 1924. The type locality of Diadophis amabilis similis. Copeia 1924(130): 56.

Blanchard, F.N. 1927. Eggs and young of the eastern ring-neck snake Diadophis punctatus edwardsii. Papers of the Michigan Academy of Science, Arts and Letters 7 [1926]: 279-292.

Blanchard, F.N. 1930. Further studies of the eggs and young of the eastern ringneck snake, Diadophis punctatus edwardsii. Bulletin of the Antivenin Institute of America 4: 4-10.

Blanchard, F.N. 1937. Eggs and natural nests of the eastern ringneck snake, Diadophis punctatus edwardsii. Papers of the Michigan Academy of Science, Arts and Letters 22 [1936]: 521-532.

Blanchard, F.N. 1942. The ring-neck snakes, genus Diadophis. Bulletin of the Chicago Academy of Sciences 7(1): 3-144.

Blanchard, F.N.; Gilreath, M.R.; Blanchard, F.C. 1979. The eastern ringneck snake (Diadophis punctatus edwardsii) in northern Michigan. Journal of Herpetology 13(4): 377-402.

Blem, C.R.; Roeding, C. 1983. Intergradation among Ringneck Snakes, Diadophis punctatus (Linnaeus) in Virginia. Virginia Journal of Science 34(4): 207-214.

Bloyd, T.L.; McCallum, M.L. 2010. Another potential victim of mortality by in-ground swimming pools: the ringneck snake (Diadophis punctatus). Journal of Kansas Herpetology 34: 10.

Bosworth, W.R.; Meik, J.M.; Setser, K.; Steele, C. 2004. The distribution of the Ring-necked Snake (Diadophis punctatus) in Utah. Herpetological Review 35(3): 238-239.

Boundy, J.; Balgooyen, T.G. 1988. Record lengths for some amphibians and reptiles from the western United States. Herpetological Review 19(2): 26-27.

Bradshaw, W.N. 1966. An albino eastern ringneck snake, Diadophis punctatus (Linnaeus) from West Virginia. Proceedings of the West Virginia Academy of Science 38: 13-14.

Breckenridge, W.J. 1942. Ring-necked snakes of Minnesota. Copeia 1942: 128.

Breitenbach, L.; Wild, E.R. 2016. Geographic distribution: Diadophis punctatus (Ring-necked Snake). Herpetological Review 47(2): 262.

Brennan, T.C.; Rosen, P.C.; Hellekson, L. 2009. Diadophis punctatus regalis (Regal Ring-necked Snake) diet. Sonoran Herpetologist 22(11): 123.

Bridger, A.E.; Geluso, K. 2011. Geographic distribution: Diadophis punctatus (Ring-necked Snake). Herpetological Review 42(4): 572.

Brock, T.L.; Camp, C.D. 2018. Natural history notes: Diadophis punctatus edwardsii (Northern Ring-necked Snake). Envenomation. Herpetological Review 49(2): 340-341.

Brodie, E.D.; Nussbaum, R.A.; Storm, R.M. 1969. An egg-laying aggregation of five species of Oregon reptiles. Herpetologica 25: 223-227.

Brown, N.L. 2000. Geographic distribution: Diadophis punctatus regalis (Regal Ringneck Snake). USA: Arizona: Mohave Co. Herpetological Review 31(1): 55.

Brumwell, M.J. 1951. An ecological survey of the Fort Leavenworth Military Reservation. American Midland Naturalist 45(1): 187-231.

Cadle, J.E. 1984. Molecular systematics of Neotropical xenodontine snakes. 3. Overview of xenodontine phylogeny and the history of New World snakes. Copeia 1984(3): 641-652.

Callejas-Jiménez, F.; Fernández-Badillo, L. 2015. Distribution notes: Diadophis punctatus (Linnaeus, 1766). Mesoamerican Herpetology 2(4): 549.

Carl, G. 1978. Notes on worm-eating in the prairie ringneck snake, Diadophis punctatus arnyi. Bulletin of the Maryland Herpetological Society 14(2): 95-97.

Casper, G.S. 2014. Geographic distribution: Diadophus punctatus edwardsii (Northern Ring-necked Snake). Herpetological Review 45(1): 94.

Casper, G.S.; Burnham, J. 2001. Geographic distribution: Diadophis punctatus (Ring-necked Snake). Herpetological Review 32(3): 194.

Cathro, A.; Lindquist, E. 2016. Natural history notes: Diadophis punctatus edwardsii (Northern Ring-necked Snake). Diet. Herpetological Review 47(4): 681.

Clark, D.R.; Bunck, C.M.; Hall, R.J. 1997. Female reproductive dynamics in a Maryland population of Ringneck Snakes (Diadophis punctatus). Journal of Herpetology 31(4): 476-483.

Clark, D.R.; Bunck, C.M.; Hall, R.J. 1997. Female reproductive dynamics in a Maryland population of Ringneck Snakes (Diadophis punctatus). Journal of Herpetology 31(4): 476-483.

Cole, C.J. 1965. The regal ringneck snake (Diadophis punctatus regalis Baird and Girard) in Nuevo Leon, Mexico. Herpetologica 21: 156.

Collins, S.L.; Collins, J.T.; Taggart, T.W. 2002. Diadophis punctatus (Ringneck Snake). Journal of Kansas Herpetology 3: 13.

Colvin, R.; Dennison, J. 2013. Geographic distribution: Diadophis punctatus (Ring-necked Snake). USA: Tennessee: Henderson Co. Herpetological Review 44(1): 109.

Croulet, C.H. 1965. Evidence of conspecificity of the western ringneck snakes (genus Diadophis). Herpetologica 21(1): 80.

Davis, J.G. 2014. Geographic distribution: Diadophus punctatus edwardsii (Northern Ring-necked Snake). Herpetological Review 45(1): 94.

Davis, J.G.; Krusling, P.J.; Ferner, J.W. 2007. Geographic distribution: Diadophis punctatus edwardsii (Northern Ring-necked Snake). USA: Ohio: Brown Co. Herpetological Review 38(1): 103.

Davis, J.G.; Menze, S.A. 2007. Geographic distribution: Diadophis punctatus edwardsii (Northern Ring-necked Snake). USA: Ohio: Clinton Co. Herpetological Review 38(1): 103.

Delaney, D.E.; Medica, P.A.; Hardenbrook, D.G. 1991. Geographic distribution: Diadophis punctatus regalis (Regal Ringneck Snake). Herpetological Review 22(1): 26.

Desroches, J.F.; Roussel, B. 2005. Extension de l'aire de distribution de la Couleuvre a collier, Diadophis punctatus edwardsii, dans l'est du Quebec. Canadian Field Naturalist 119(3): 457-458.

Devender, T.R. van; Gómez-Limón, E. 2014. Geographic distribution: Diadophis punctatus regalis (Regal Ring-necked Snake). Herpetological Review 45(3): 465.

Dowling, H.G. 1956. Geographic relations of Ozarkian amphibians and reptiles. Southwestern Naturalist 1(4): 174-189.

Duffus, A.L.J.; Ashley, D.; Bender, M.J.; Austin, D. 2014. Geographic distribution: Diadophus punctatus (Ring-necked Snake). Herpetological Review 45(1): 94.

Dundee, H.R.; Miller, M.C. 1968. Aggregative behaviour and habitat conditioning by the prairie ringneck snake, Diadophis punctatus arnyi. Tulane Studies in Zoology and Botany 15: 41-58.

Durso, A.M.; Kiriazis, N.M. 2011. Natural history notes: Coluber constrictor (North American Racer). Prey size. Herpetological Review 42(2): 285.

Durso, A.M.; Moree, J.; Stoudenmire, C. 2009. Geographic distribution: Diadophis punctatus (Ring-necked Snake). Herpetological Review 40(4): 455.

Durso, A.M.; Smith, L. 2017. Natural history notes: Eleutherodactylus planirostris (Greenhouse Frog). Predation. Herpetological Review 48(3): 606.

Earle, A.M. 1958. Albinism in the prairie ring-necked snake. Herpetologica 13: 272.

Emmerich, K.; Cunningham, L. 2003. Geographic distribution: Diadophis punctatus (Ringneck Snake). Herpetological Review 34(2): 169.

Ernst, S.G. 1962. Note on the life history of the eastern ringneck snake. Tiirtox News 40(10): 266-267.

Essner, R.L.; Axtell, R.W. 2008. Geographic distribution: Diadophis punctatus (Ring-necked Snake). Herpetological Review 39(2): 240-241.

Evans, H.E. 1948. Variation in ring-necked snakes from Sullivan County, New York. Copeia 1948(3): 212.

Evelyn, C.J.; Hunt, L.E. 2014. Geographic distribution: Diadophis punctatus (Ring-necked Snake). Herpetological Review 45(3): 465.

Feldman, C.R.; Spicer, G.S. 2006. Comparative phylogeography of woodland reptiles in California: repeated patterns of cladogenesis and population expansion. Molecular Ecology 15(8): 2201-2222.

Fernández-Badillo, L.; Jiménez-Villegas, J.L.; Morales-Capellán, N.; González-Bonilla, G.T.; Tepango-Benítez, A.H.; Ramírez-Cruz, M.B.; Hernández-Silva, D.A. 2017. Distribution notes: Diadophis punctatus (Linnaeus, 1766). Mesoamerican Herpetology 4(4): 961-962.

Fitch, H.S. 1975. A demographic study of the ringneck snake Diadophis punctatus in Kansas. University of Kansas Museum of Natural History Miscellaneous Publications 62: 1-53.

Fitch, H.S. 2004. Observations on Ringneck Snakes (Diadophis punctatus). Journal of Kansas Herpetology 12: 19.

Fitch, H.S. 2004. The effect of female size on number of eggs or young in snakes. Journal of Kansas Herpetology 9: 11-12.

Fogell, D.D.; Taggart, T.W. 2010. Diadophis punctatus (ringneck snake). Journal of Kansas Herpetology 35: 10.

Fontanella, F.; Siddall, M.E. 2010. Evaluating hypotheses on the origin and diversification of the ringneck snake Diadophis punctatus (Colubridae: Dipsadinae). Zoological Journal of the Linnean Society 158(3): 629-640.

Fontanella, F.M.; Feldman, C.R.; Siddall, M.E.; Burbrink, F.T. 2008. Phylogeography of Diadophis punctatus: extensive lineage diversity and repeated patterns of historical demography in a trans-continental snake. Molecular Phylogenetics and Evolution 46(3): 1049-1070.

Franks, M.S.; Geluso, K. 2017. Geographic distribution: Diadophis punctatus (Ring-necked Snake). Herpetological Review 48(2): 391.

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.

Freeman, J.R.; Freeman, C.C. 1982. Life history notes: Diadophis punctatus edwardsi (Northern Ringneck Snake). Size. Herpetological Review 13(3): 96.

French, C.M. 2017. Natural history notes: Diadophis punctatus regalis (Regal Ring-necked Snake). Diet. Herpetological Review 48(2): 448.

Gehlbach, F.R. 1974. Evolutionary relations of southwestern ringneck snakes (Diadophis punctatus). Herpetologica 30(2): 140-148.

Gilhen, J. 1969. An unusually large, gravid ring-necked snake, Diadophis punctatus edwardsi (Merrem) with eight eggs from Nova Scotia. Canadian Field Naturalist 83: 277.

Gilhen, J. 1999. First record of a partial leucistic Northern Ringneck Snake, Diadophis punctatus edwardsi, in Nova Scotia. Canadian Field-Naturalist 113(2): 282-284.

Gilhen, J. 2011. The brown morph of the Northern Ringneck Snake, Diadophis punctatus edwardsii, on Big Tancook Island, Mahone Bay, Nova Scotia. Canadian Field-Naturalist 125(1): 69-71.

Gilhen, J.; Caswell, G.; Drake, C.; MacDonald, M.; McKinnon-Ramshaw, H. 2012. A partial albino hatchling Northern Ring-necked Snake, Diadophis punctatus edwardsii, from Big Tancook Island, Mahone Bay, Lunenburg County, Nova Scotia, Canada. Canadian Field-Naturalist 126(4): 336-339.

Goodman, R.H. 1997. Natural history notes: Diadophis punctatus vandenburghi (Monterey Ringneck Snake). Diet. Herpetological Review 28(2): 90.

Gordon, D.J. 1997. Geographic distribution: Diadophis punctatus (Ringneck Snake). Herpetological Review 28(1): 51-52.

Gotte, S.W. 2016. Natural history notes: Diadophis punctatus punctatus (Southern Ring-necked Snake). Predation. Herpetological Review 47(2): 310.

Gray, B.S. 2006. Artificial hibernation of some temperate North American snakes. Bulletin of the Chicago Herpetological Society 41(6): 101-104.

Gray, B.S. 2010. Distribution of native and exotic earthworms in the eastern United States: implications for the ecology of vermivorous snakes. Bulletin of the Chicago Herpetological Society 45(5): 73-86.

Grismer, L.L. 2001. An evolutionary classification and checklist of amphibians and reptiles on the Pacific islands of Baja California, Mexico. Bulletin of the Southern California Academy of Sciences 100(1): 12-23.

Groves, F. 1978. A case of twinning in the ringneck snake, Diadophis punctatus edwardsi. Bulletin of the Maryland Herpetological Society 14(1): 48-49.

Groves, J.D. 1974. An albino ringneck snake, Diadophis punctatus, from New Jersey. Bulletin of the Maryland Herpetological Society 10(4): 102.

Groves, M.P. 1947. Variant specimens of ring-necked snakes in Maryland. Copeia 1947: 274.

Hammerson, G.A.; Frost, D.R. 2007. Diadophis punctatus. The IUCN Red List of Threatened Species 2007: e.T63769A12714288. http://dx.doi.org/10.2305/IUCN.UK.2007.RLTS.T63769A12714288.en.

Hanley, G.H. 1943. Terrarium notes on Californian reptiles. Copeia 1943: 145-147.

Hansen, R.W.; Tobler, D. 2010. Geographic distribution: Diadophis punctatus (Ring-necked Snake). USA: California. Herpetological Review 41(3): 379.

Hartzell, S.M. 2016. Geographic distribution: Diadophis punctatus (Ring-necked Snake). Herpetological Review 47(2): 261-262.

Harvey, J.E. 1962. Note on feeding the western ringneck snake (Diadophis amabilis). Turtox News 40: 120.

Hathcock, C.D.; Giermakowski, J.T. 2018. Geographic distribution: Diadophis punctatus (Ring-necked Snake). Herpetological Review 49(1): 75.

Hedeen, D.L.; Hedeen, S.E. 1998. Natural history notes: Diadophis punctatus (Ringneck Snake). Predation. Herpetological Review 29(2): 103.

Henderson, R.W. 1970. Feeding behaviour, digestion, and water requirements of Diadophis punctatus arnyi Kennicott. Herpetologica 26: 520-526.

Hernández-Melo, J.A.; Torres-Angeles, F.; Zepéda-Hernández, Z.K. 2017. Distribution notes: Diadophis punctatus (Linnaeus, 1766). Mesoamerican Herpetology 4(2): 466-467.

Hibbitts, T. 1992. Geographic distribution: Diadophis punctatus arnyi (Prairie Ringneck Snake). Herpetological Review 23(3): 91.

Hill, R.E.; Mackessy, S.P. 1997. Venom yields from several species of colubrid snakes and differential effects of ketamine. Toxicon 35(5): 671-678.

Holm, J.A. 2004. Geographic distribution: Diadophis punctatus arnyi (Prairie Ring-necked Snake). Herpetological Review 35(1): 83.

Hoyer, R.F.; Stewart, G.R. 2000. Biology of the Rubber Boa (Charina bottae), with emphasis on C. b. umbratica. Part II: diet, antagonists, and predators. Journal of Herpetology 34(3): 354-360.

Hubbs, C.L. 1932. The use of the generic name Ophis for an eel, a snake and a mollusc. Copeia 1932: 26-27.

Inman, B.; Miller, B.T. 2018. Geographic distribution: Diadophis punctatus (Ring-necked Snake). Herpetological Review 49(4): 717-718.

Irwin, L.K.; Irwin, K.J. 2001. Geographic distribution: Diadophis punctatus stictogenys (Mississippi Ringneck Snake). Herpetological Review 32(1): 59.

Johnson, J.A.; Malone, J.H. 2001. Geographic distribution: Diadophis punctatus (Ringneck Snake). Herpetological Review 32(2): 122.

Johnson, J.D. 1994. Geographic distribution: Diadophis punctatus arnyi (Prairie Ringneck Snake). USA: Texas: Sherman Co. Herpetological Review 25(4): 166.

Johnson, L.D.; Smith, G.R.; Rettig, J.E. 2004. Summer activity of small snakes in four habitats in northwestern Missouri. Bulletin of the Maryland Herpetological Society 40(1): 47-52.

Johnson, R.A.; Carothers, S.W. 1983. Geographic distribution: Diadophis punctatus regalis (Ringneck Snake). Herpetological Review 14(1): 28.

Johnson, R.M.; Webb, J.F. 1964. Intergradation in the ringneck snake, Diadophis punctatus (Linnaeus), in eastern Tennessee. Journal of the Tennessee Academy of Science 39: 70.

Jolley, M.L.; Powell, R.; Smith, D.D. 1983. Life history notes: Diadophis punctatus arnyi (Prairie Ringneck Snake). Coloration. Herpetological Review 14(4): 119-120.

Jones, K.B.; Porzer, L.M.; Bothwell, K.J. 1982. Herpetological records from west-central Arizona. Herpetological Review 13(2): 54.

Kats, L.B.; Goodsell, J.A.; Matthews, N.; Bahn, C.; Blaustein, A.R. 1998. Natural history notes: Taricha torosa (California Newt). Predation. Herpetological Review 29(4): 230.

Krysko, K.L.; Halvorsen, M.D. 2010. Natural history notes: Osteopilus septentrionalis (Cuban Tree Frog). Prey. Herpetological Review 41(3): 339-340.

LaDuc, T.J. 1997. Geographic distribution: Diadophis punctatus regalis (Regal Ringneck Snake). Herpetological Review 28(3): 159.

Lancaster, D.L.; Wise, S.E. 1996. Differential response by the Ringneck Snake, Diadophis punctatus, to odors of tail-autotomizing prey. Herpetologica 52(1): 98-108.

Latham, R. 1971. Records of the ringneck snake on eastern Long Island. Engelhardtia 4(4): 46.

Lazell, J.D. 1985. Geographic distribution: Diadophis punctatus acricus (Key Ringneck Snake). Herpetological Review 16(4): 115.

Lee, J.R. 2006. Natural history notes: Lampropeltis triangulum elapsoides (Scarlet Kingsnake). Ophiophagy. Herpetological Review 37(2): 231.

Malaret, L.; Fitch, H.S. 1984. Effects of overfeeding and underfeeding on reproduction in four species of reptiles. Acta Zoologica et Pathologica Antverpiensia 78: 77-84.

Mara, W.P. 1996. Ringneck Snakes, small, but not forgotten. Tropical Fish Hobbyist 44(6): 148, 150, 152, 154, 156, 158-159, 161-162.

Marcou, Z.J. 2018. Geographic distribution: Diadophis punctatus stictogenys (Mississippi Ring-necked Snake). Herpetological Review 49(1): 75-76.

Marion, K.R.; Nowak, M.C. 1985. Life history notes: Diadophis punctatus punctatus (Southern Ringneck Snake). Size. Herpetological Review 16(4): 111.

Marut, F. 1968. The San Bernardino ringneck snake - Diadophis punctatus modestus - in captivity. Herpetology 2(4): 11.

McAllister, C.T.; Robison, H.W.; Kremers, J. 2009. Additional geographic distribution records of amphibians and reptiles in Arkansas, USA. Herpetological Review 40(2): 245.

McCallum, M.L.; Trauth, S.E.; Neal, R.G. 2006. Tail-coiling in Ringneck Snakes: flash display or decoy? Herpetological Natural History 10(1): 91-94.

McCauley, R.H. 1941. Diadophis punctatus in Maryland. Copeia 1941: 55.

McFerrin, M.A.; Ennen, J.R. 2017. Geographic distribution: Diadophis punctatus (Ring-necked Snake). Herpetological Review 48(2): 391.

McNearney, R. 2004. Diadophis punctatus (Ringneck Snake). Albino. Journal of Kansas Herpetology 10: 11.

Mecham, J.S. 1956. The relationship between the ringneck snake Diadophis regalis and D. punctatus. Copeia 1956: 51-52.

Mendelson, J.R.; Adams, A.J. 2014. Natural history notes: Diadophis punctatus (Ring-necked Snake). Diet. Herpetological Review 45(4): 709-710.

Mendoza-Hernandez, A.A.; Mocino-Deloya, E.; Setser, K. 2009. Natural history notes: Diadophis punctatus (Ringneck Snake). Ophiophagy. Herpetological Review 40(4): 441-442.

Meshaka, W.E.; Wilkerson, M.L.D. 2008. Seasonal activity, reproduction and growth of the Ringneck Snake (Diadophis punctatus) in Pennsylvania. Journal of Kansas Herpetology 28: 17-20.

Milanovich, J.R.; Trauth, S.E.; Mary, M.N. 2005. Natural history notes: Diadophis punctatus stictogenys (Mississippi Ring-necked Snake). Diet. Herpetological Review 36(3): 323-324.

Miller, L.L. 2006. Late fall Ringneck Snake activity. Journal of Kansas Herpetology 17: 6.

Miller, R. 1979. Miscellaneous distributional records for Maryland amphibians and reptiles. Bulletin of the Maryland Herpetological Society 15(2): 56-58.

Milstead, W.W. 1960. Relict species of the Chihuahuan desert. Southwestern Naturalist 5: 75-88.

Mitchell, J.C.; Brown, W.D. 2005. Southern Ring-necked Snake (Diadophis punctatus punctatus) phenotype in the blue ridge physiographic province of Virginia. Banisteria 26: 26-27.

Mohr, J.P.; Stegenga, B.S.; Stegenga, S.A. 2011. Natural history notes: Diadophis punctatus punctatus (Southern Ring-necked Snake). Maximum size. Herpetological Review 42(2): 288-289.

Montgomery, C.; Waldron, K.; Hobert, J.; Donoho, R.; Mackessy, S.P. 1996. Geographic distribution: Diadophis punctatus arnyi (Prairie Ringneck Snake). Herpetological Review 27(1): 33.

Mott, C.L. 2009. Geographic distribution: Diadophis punctatus (Ring-necked Snake). Herpetological Review 40(2): 238.

Myers, C.W. 1965. Biology of the ringneck snake, Diadophis punctatus, in Florida. Bull. Florida State Mus. 10: 43-90.

Myers, E.A.; Maupin, K.A.; Weaver, R.E. 2010. Geographic distribution: Diadophis punctatus (Ring-necked Snake). USA: Washington. Herpetological Review 41(3): 379.

Neill, W.T. 1941. A case of albinism in Diadophis p. punctatus. Copeia 1941: 266.

Neill, W.T. 1951. Notes on the natural history of certain North American snakes. Publ. Res. Div. Ross Allen Rept. Inst. 1(5): Unpaginated.

Nelson, K.T.; Durso, A.M.; Horan, R.V. 2010. Natural history notes: Diadophis punctatus punctatus (Southern Ring-necked Snake). Diet. Herpetological Review 41(1): 90-91.

O'Donnell, R.P.; Staniland, K.; Mason, R.T. 2007. Experimental evidence that oral secretions of northwestern Ring-necked Snakes (Diadophis punctatus occidentalis) are toxic to their prey. Toxicon 50(6): 810-815.

Palis, J.G. 2016. Natural history notes: Diadophis punctatus (Ring-necked Snake). Diet. Herpetological Review 47(3): 477-478.

Palmer, W.M. 1959. A southern ringneck snake of record size. Herpetologica 15: 93.

Paloski, R.A.; Rowe, S.A.; Badje, A.F. 2016. Geographic distribution: Diadophis punctatus edwardsii (Northern Ring-necked Snake). Herpetological Review 47(4): 629-630.

Parker, W.S.; Brown, W.S. 1974. Notes on the ecology of regal ringneck snakes (Diadophis punctatus regalis) in nothern Utah. Journal of Herpetology 8(3): 262-263.

Parker, W.S.; Brown, W.S. 2016. The Utah snake dens 75 years later: a historical review. Herpetological Review 47(3): 365-373.

Paul, J.R. 1967. Intergradation among ring-necked snakes in southeastern United States. Journal of the Elisha Mitchell Scientific Society 83: 98-102.

Paulson, D.R. 1968. Variation in some snakes from the Florida Keys. Quarterly Journal of the Florida Academy of Sciences 29 [1966]: 295-308.

Pauly-Hubbard, E.C. 2015. Prairie Ring-necked Snake Diadophis punctatus arnyi. Captive care. Collinsorum 3(2-4): 17-18.

Pequegnat, W.E. 1951. The biota of the Santa Ana Mountains. Journal Ent. Zool. 42: 1-84.

Perkins, M.; Palmer, B.D. 1996. Histology and functional morphology of the oviduct of an oviparous snake, Diadophis punctatus. Journal of Morphology 227(1): 67-79.

Persons, T.B.; Bradley, G.L. 2000. Geographic distribution: Diadophis punctatus (Ringneck Snake). USA: Arizona: Coconino Co. Herpetological Review 31(2): 113-114.

Peterson, H.W. 1956. A record of viviparity in a normally oviparous snake. Herpetologica 12: 152.

Petzing, J.E.; Phillips, C.A. 1998. Geographic distribution: Diadophis punctatus (Ringneck Snake). Herpetological Review 29(2): 111.

Pierson, T.W. 2012. Geographic distribution: Diadophis punctatus (Ring-necked Snake). Herpetological Review 43(2): 307.

Pierson, T.W.; Malavika, R. 2012. Geographic distribution: Diadophis punctatus (Ring-necked Snake). USA: Georgia: Tift Co. Herpetological Review 43(4): 620.

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