Citation: Midtgaard, Rune. RepFocus - A Survey of the Reptiles of the World. (www.repfocus.dk). Latest update:
November 14th, 2024.




 



|
Genus
Chironius

 |
Sipos, Neotropical Whip Snakes, Southern Whip Snakes
|

 |
Sipos
|

 |
Sipoer
|

1826 |  |
Chironius Fitzinger (type species: Coluber carinatus Linnaeus 1758) |
1826 |  |
Erpetodryas Boie (type species: not designated; syn, Dixon, Wiest & Cei 1993) |
|  |
Herpetodryas Wagler 1830 [emendation of Erpetodryas Boie 1826] |
1830 |  |
Macrops Wagler (type species: Coluber saturninus Linnaeus 1758; syn. Dixon, Wiest & Cei 1993) |
1843 |  |
Hylophis Fitzinger (type species: Coluber laevicollis Wied 1824; syn. Dixon, Wiest & Cei 1993) |
1862 |  |
Phyllosira Cope (type species: Phyllosira flavescens Cope 1862; syn. Dixon, Wiest & Cei 1993) |
Contents:
27 species, of which 9 (33.3%) are endemic.
Endemism: 0% 100%
Distribution:
Central America, South America.
Reported from:
Argentina,
Bolivia,
Brazil
(Acre,
Alagoas,
Amapa,
Amazonas,
Bahia,
Ceara,
Distrito Federal,
Espirito Santo,
Goias,
Maranhao,
Mato Grosso,
Mato Grosso do Sul,
Minas Gerais,
Para
[incl.
Marajo Island],
Paraiba,
Parana,
Pernambuco,
Piaui,
Rio de Janeiro,
Rio Grande do Norte,
Rio Grande do Sul,
Rondonia,
Roraima,
Santa Catarina,
Sao Paulo
[incl.
Sao Sebastiao],
Sergipe,
Tocantins),
Colombia
(incl.
Gorgona Island),
Costa Rica,
Ecuador,
French Guiana,
Guyana,
Honduras,
Nicaragua,
Panama,
Paraguay,
Peru,
Saint Vincent & the Grenadines
(incl.
Saint Vincent),
Surinam,
Trinidad & Tobago
(Trinidad),
Uruguay,
Venezuela.
| |

|
Chironius barrioi

 |
Bolivian Sipo
|

 |
Bolivianische Sipo
|

 |
Boliviansk Sipo
|

1969 |  |
Chironius barrioi Donoso-Barros |

Remarks:
Regarded as a synonym of scurrulus by some authors (e.g., Dixon, Wiest & Cei 1993; Wallach, Williams & Boundy 2014), but as a valid species by Pincheira-Donoso (2002).
Distribution:
Bolivia.
|

|

|
Chironius bicarinatus

 |
Eastern Sipo, Two-keeled Whip Snake
|

 |
Östliche Sipo
|

 |
Østlig Sipo
|

1820 |  |
Coluber bicarinatus Wied |
|  |
Natrix bicarinata Merrem 1820 |
|  |
Erpetodryas bicarinatus Boie 1826 |
|  |
Herpetodryas bicarinatus Wagler 1830 |
|  |
Herpetodryas carinatus bicarinatus Boettger 1898 |
|  |
Chironius bicarinatus Bailey 1955 |

Remarks:
Previously included the populations now assigned to gouveai.
Currently regarded as restricted to Brazil.
Following Entiauspe-Neto, Lyra, Koch, Quintela, Abegg & Loebmann (2020) and Nogueira & al. (2019), records from Bolivia as well as Distrito Federal, Maranhao, and Para (Brazil)
are regarded as doubtful.
Introduced to:
Uruguay.
Distribution:
Brazil
(Alagoas,
Bahia,
Ceara,
Espirito Santo,
Goias,
Minas Gerais,
Mato Grosso do Sul,
Paraiba,
Parana,
Rio de Janeiro,
Rio Grande do Sul,
Santa Catarina,
Sao Paulo
[incl.
Sao Sebastiao],
Sergipe).
|

|

|
Chironius brazili

 |
Southeast Brazilian Sipo
|

 |
Südostbrasilianische Sipo
|

 |
Sydøstbrasiliansk Sipo
|

2015 |  |
Chironius brazili Hamdan & Fernandes |

Distribution:
Brazil
(Distrito Federal,
Goias,
Minas Gerais,
Parana,
Rio Grande do Sul,
Sao Paulo).
|

|

|
Chironius carinatus

 |
Yellow-lipped Sipo, Yellow-lipped Tree Snake, Machete Savane, (Golden Tree Snake)
|

 |
Gelblippen-Sipo
|

 |
Gullæbet Sipo
|

1758 |  |
Coluber carinatus Linnaeus |
|  |
Natrix carinata Merrem 1820 |
|  |
Chironius carinatus Fitzinger 1826 |
|  |
Erpetodryas carinatus Boie 1826 |
|  |
Herpetodryas carinatus Wagler 1830 |
1798 |  |
Coluber chironius Donndorff (Dixon, Wiest & Cei 1993) |
1845 |  |
Coluber pickeringii Hallowell (Dixon, Wiest & Cei 1993) |

Remarks:
Previously included flavopictus and spixii, as well as the population now assigned to nigelnoriegai.
Records from Trinidad refer to nigelnoriegai (Jadin, Jowers, Blair, Ludwig, Salgado-Irazabal & Murphy 2024).
Distribution:
Bolivia,
Brazil
(Acre,
Alagoas,
Amapa,
Amazonas,
Bahia,
Ceara,
Maranhao,
Para
[incl.
Marajo Island],
Paraiba,
Pernambuco,
Piaui,
Rondonia,
Roraima,
Sergipe,
Tocantins),
Colombia,
French Guiana,
Guyana,
Peru,
Surinam,
Trinidad & Tobago
(Trinidad),
Venezuela.
|

|

|
Chironius challenger

 |
Maringma Tepui Sipo
|

 |
Maringma-Sipo
|

 |
Maringma-sipo
|

2010 |  |
Chironius challenger Kok |

Distribution:
Guyana,
Venezuela.
|

|

|
Chironius diamantina

 |
Chapada Diamantina Sipo
|

 |
Chapada-Diamantina-Sipo
|

 |
Chapada Diamantina-sipo
|

2014 |  |
Chironius diamantina Fernandes & Hamdan |

Distribution:
Brazil
(Bahia).
|

|

|
Chironius dixoni

 |
Beni Sipo
|

 |
Beni-Sipo
|

 |
Beni-sipo
|

1978 |  |
Chironius dixoni Wiest |
1993 |  |
Chironius laurenti Dixon, Wiest & Cei (syn. Entiauspe-Neto & Loebmann 2019) |

Remarks:
Previously referred to as laurenti (e.g., Dixon, Wiest & Cei 1993).
Entiauspe-Neto & Loebmann (2019) demonstrated that the valid name for this species is dixoni.
Distribution:
Bolivia,
Brazil
(Acre,
Mato Grosso,
Mato Grosso do Sul).
|

|

|
Chironius dracomaris

 |
Baturité Sipo
|

 |
Baturité-Sipo
|

 |
Baturité-sipo
|

2024 |  |
Chironius dracomaris Sudré, Andrade-Junior, Folly, Azevedo, Avila, Curcio, Nunes & Passos |

Distribution:
Brazil
(Ceara).
|

|

|
Chironius exoletus

 |
Green Sipo, Common Southern Sipo, Common Sipo
|

 |
Grüne Sipo, Gewöhnliche Sipo
|

 |
Grøn Sipo, Almindelig Sipo
|

1758 |  |
Coluber exoletus Linnaeus |
|  |
Natrix exoleta Laurenti 1768 |
|  |
Tyria exoleta Fitzinger 1826 |
|  |
Erpetodryas exoletus Boie 1826 |
|  |
Herpetodryas exoletus Wagler 1830 |
|  |
Chironius exoletus Hoge, Romano & Cordeiro 1978 |
1824 |  |
Coluber pyrrhopogon Wied (Dixon, Wiest & Cei 1993; Sudré, Curcio, Nunes, Pellegrino & Rodrigues 2017) |
|  |
Chironius pyrrhopogon Bailey 1955 |
1896 |  |
Zaocys tornieri Werner 1896 (Dixon, Wiest & Cei 1993) |
|  |
Ptyas tornieri Welch 1988 |

Remarks:
Overlooked in much older literature (e.g., Peters & Orejas-Miranda 1970). Revalidated by Hoge, Romano & Cordeiro (1978).
Distribution:
Argentina,
Bolivia,
Brazil
(Acre,
Amapa,
Amazonas,
Bahia,
Ceara,
Distrito Federal,
Espirito Santo,
Goias,
Maranhao,
Mato Grosso,
Mato Grosso do Sul,
Minas Gerais,
Para
[incl.
Marajo Island],
Paraiba,
Parana,
Pernambuco,
Piaui,
Rio de Janeiro,
Rio Grande do Sul,
Rondonia,
Roraima,
Santa Catarina,
Sao Paulo,
Sergipe,
Tocantins),
Colombia,
Costa Rica,
Ecuador,
French Guiana,
Guyana,
Panama,
Peru,
Surinam,
Venezuela.
|

Chironius exoletus
© Henrik Bringsøe
|

|
Chironius flavolineatus

 |
Yellow-striped Sipo, Brown-striped Whip Snake
|

 |
Gelbstreifen-Sipo
|

 |
Gulstribet Sipo
|

1863 |  |
Herpetodryas carinatus flavolineatus Jan |
|  |
Herpetodryas flavolineatus Boettger 1885 |
|  |
Chironius flavolineatus Bailey 1955 |

Remarks:
Hamdan, Scali & Fernandes (2014) redefined flavolineatus, designated a lectotype, and confirmed Jan (1863) as the correct authorship.
A record from Peru (Lehr 2002) is regarded as erroneous (Hamdan & Fernandes 2015).
Previously included the populations now assigned to brazili.
Not mentioned for French Guiana by Kuijpers (2024).
Distribution:
Bolivia,
Brazil
(Alagoas,
Amapa,
Amazonas,
Bahia,
Ceara,
Distrito Federal,
Goias,
Maranhao,
Mato Grosso,
Mato Grosso do Sul,
Minas Gerais,
Para
[incl.
Marajo Island],
Paraiba,
Parana,
Pernambuco,
Piaui,
Rio Grande do Norte,
Rondonia,
Sao Paulo,
Sergipe,
Tocantins),
French Guiana,
Paraguay.
|

|

|
Chironius flavopictus

 |
Yellow-spotted Sipo, Star Snake
|

 |
Gelbfleckige Sipo
|

 |
Gulplettet Sipo
|

1909 |  |
Herpetodryas carinatus flavopicta Werner |
|  |
Chironius flavopictus Peters 1960 |

Remarks:
Previously regarded as a subspecies of carinatus.
Revalidated as a separate species by Hollis (2006).
Distribution:
Colombia,
Costa Rica,
Ecuador,
Panama.
|

|

|
Chironius foveatus

 |
Bahia Sipo, Coastal Sipo
|

 |
Bahia-Sipo
|

 |
Bahia-sipo
|

1955 |  |
Chironius foveatus Bailey |
|  |
Chironius multiventris foveatus Dixon, Wiest & Cei 1993 |

Remarks:
Revalidated as a separate species by Hollis (2006).
Distribution:
Brazil
(Bahia,
Espirito Santo,
Minas Gerais,
Parana,
Rio De Janeiro,
Rio Grande do Sul,
Santa Catarina,
Sao Paulo
[incl.
Sao Sebastiao]).
|

|

|
Chironius fuscus

 |
Brown Sipo, Olive Whip Snake, Red-fronted Tree Snake, Green Tree Snake
|

 |
Braune Sipo
|

 |
Brun Sipo
|

1758 |  |
Coluber fuscus Linnaeus |
|  |
Herpetodryas fuscus Duméril, Bibron & Duméril 1854 |
|  |
Chironius fuscus Amaral 1929 |
1758 |  |
Coluber saturninus Linnaeus (Dixon, Wiest & Cei 1993) |
|  |
Macrops saturninus Wagler 1830 |
|  |
Herpetodryas saturninus Filippi 1840 |
1860 |  |
Herpetodryas sebastus Cope (Dixon, Wiest & Cei 1993) |

Remarks:
Auth (1994) eroneously reported fuscus from Panama.
Distribution:
Bolivia,
Brazil
(Acre,
Amapa,
Amazonas,
Bahia,
Espirito Santo,
Maranhao,
Mato Grosso,
Mato Grosso do Sul,
Minas Gerais,
Para
[incl.
Marajo Island],
Parana,
Rio de Janeiro,
Rondonia,
Roraima,
Santa Catarina,
Sao Paulo),
Colombia,
Ecuador,
French Guiana,
Guyana,
Peru,
Surinam,
Venezuela.
|


Chironius fuscus
© Henrik Bringsøe
|

|
Chironius gouveai

 |
Uruguayan Sipo, (Gouvea's Sipo)
|

 |
Uruguayische Sipo
|

 |
Uruguayisk Sipo
|

2020 |  |
Chironius gouveai Entiauspe-Neto, Lyra, Koch, Quintela, Abegg & Loebmann |

Remarks:
Previously regarded as a population of bicarinatus.
Records of bicarinatus from Argentina and Paraguay are tentatively referred to gouveai, since they are geographically much closer to records of the latter species than the former.
A record from Montevideo, Uruguay, is presumed to represent an introduced bicarinatus (Entiauspe-Neto, Lyra, Koch, Quintela, Abegg & Loebmann 2020).
Distribution:
Argentina,
Brazil
(Parana,
Rio Grande do Sul,
Santa Catarina),
Paraguay.
Uruguay.
|

|

|
Chironius grandisquamis

 |
Large-scaled Sipo, Ebony Keelback, Ecuadorian Sipo
|

 |
Grossschuppige Sipo
|

 |
Storskællet Sipo
|

1868 |  |
Spilotes grandisquamis Peters |
|  |
Herpetodryas grandisquamis Cope 1875 |
|  |
Chironius fuscus grandisquamis Wettstein 1934 |
|  |
Chironius grandisquamis Taylor 1951 |
1886 |  |
Herpetodryas melas Cope (Dixon, Wiest & Cei 1993) |
|  |
Chironius melas Prado 1940 |
1899 |  |
Herpetodryas schlüteri Werner (Dixon, Wiest & Cei 1993) |
|  |
Chironius schlüteri Peters 1960 |
|  |
Chironius schlueteri Peters & Orejas-Miranda 1970 |
1915 |  |
Herpetodryas vicinus Boulenger (Dixon, Wiest & Cei 1993) |

Remarks:
Pérez-Santos & Moreno (1988) regarded melas and schlueteri as separate species. Also Almendáriz (1992) regarded schlueteri as a separate species.
Distribution:
Bolivia,
Colombia
(incl.
Gorgona Island),
Costa Rica,
Ecuador,
Honduras,
Nicaragua,
Panama.
|

|

|
Chironius laevicollis

 |
Smooth-necked Sipo, (Brown Whip Snake, Brazilian Sipo)
|

 |
Glattnacken-Sipo
|

 |
Glathalset Sipo
|

1824 |  |
Coluber laevicollis Wied |
|  |
Erpetodryas laevicolis Boie 1826 |
|  |
Herpetodryas laevicollis Wagler 1830 |
|  |
Hylophis laevicollis Fitzinger 1843 |
|  |
Chironius laevicollis Bailey 1955 |

Remarks:
Known from a single specimen from Paraguay which may have wrong locality data.
Presence in the country needs confirmation (Dixon, Wiest & Cei 1993; Cacciali, Scott, Aquino-Ortiz, Fitzgerald & Smith 2016).
Distribution:
Brazil
(Bahia,
Espirito Santo,
Minas Gerais,
Parana,
Rio de Janeiro,
Rio Grande do Sul,
Santa Catarina,
Sao Paulo
[incl.
Sao Sebastiao]),
Peru.
|

|

|
Chironius leucometapus

 |
White-fronted Sipo, (Peruvian Whip Snake)
|

 |
Weissstirn-Sipo
|

 |
Hvidpandet Sipo
|

1993 |  |
Chironius fuscus leucometapus Dixon, Wiest & Cei |
|  |
Chironius leucometapus Hollis 2006 |

Distribution:
Ecuador,
Peru.
|

|

|
Chironius maculoventris

 |
Spot-bellied Sipo, Chaco Sipo
|

 |
Bauchfleckige Sipo
|

 |
Bugplettet Sipo
|

1978 |  |
Chironius quadricarinatus maculoventris Wiest |
|  |
Chironius maculoventris Hollis 2006 |

Distribution:
Argentina,
Bolivia,
Brazil
(Rio Grande do Sul),
Paraguay.
|

|

|
Chironius monticola

 |
Mountain Sipo, Andean Sipo
|

 |
Gebirgs-Sipo
|

 |
Bjerg-sipo
|

1952 |  |
Chironius monticola Roze |

Remarks:
Presence in Surinam is based on a single specimen without exact locality data reported by Dixon, Wiest & Cei (1993).
Not mentioned for Surinam by Kuijpers (2024).
Presence in the country needs confirmation, considering the distance between Surinam and the remaining, verified range of the species.
Distribution:
Bolivia,
Colombia,
Ecuador,
Peru,
Surinam,
Venezuela.
|

|

|
Chironius multiventris

 |
Peruvian Sipo, Long-tailed Sipo, (South American Sipo)
|

 |
Peruvianische Sipo
|

 |
Peruviansk Sipo
|

1943 |  |
Chironius multiventris Schmidt & Walker |
1969 |  |
Chironius cochranae Hoge & Romano (Klaczko, Machado, Scrocchi & Zaher 2010) |
|  |
Chironius multiventris cochranae Abuys 1982 |

Remarks:
Hollis (2006) revalidated cochranae as a separate species, followed by Kok (2010), however, Klaczko, Machado, Scrocchi & Zaher (2010) synonymized it with multiventris.
Not listed for Rio de Janeiro by Oliveira, Gonzalez, Passos, Vrcibradic & Rocha (2020).
Distribution:
Bolivia,
Brazil
(Acre,
Amapa,
Amazonas,
Maranhao,
Mato Grosso,
Para
[incl.
Marajo Island],
Rondonia,
Roraima),
Colombia,
Ecuador,
French Guiana,
Guyana,
Peru,
Surinam,
Venezuela.
|

|

|
Chironius nigelnoriegai

 |
Trinidadian Sipo
|

 |
Trinidad-Sipo
|

 |
Trinidad-sipo
|

2024 |  |
Chironius nigelnoriegai Jadin, Jowers, Blair, Ludwig, Salgado-Irazabal & Murphy |

Remarks:
Previously regarded as the Trinidad population of carinatus (Jadin, Jowers, Blair, Ludwig, Salgado-Irazabal & Murphy 2024).
Distribution:
Trinidad & Tobago
(Trinidad).
|

|

|
Chironius quadricarinatus

 |
Paraguayan Sipo, Central Sipo
|

 |
Paraguayische Sipo
|

 |
Paraguayisk Sipo
|

1827 |  |
Erpetodryas 4-dricarinatus Boie |
|  |
Herpetodryas quadricarinatus Wagler 1830 |
|  |
Chironius quadricarinatus Bailey 1955 |
1862 |  |
Phyllosira flavescens Cope (Bailey 1955; Dixon, Wiest & Cei 1993) |

Distribution:
Bolivia,
Brazil
(Bahia,
Distrito Federal,
Espirito Santo,
Goias,
Mato Grosso,
Mato Grosso do Sul,
Minas Gerais,
Parana,
Rio de Janeiro,
Sao Paulo,
Tocantins),
Paraguay.
|

|

|
Chironius scurrulus

 |
Rusty Sipo, Rusty Whip Snake, Green-headed Tree Snake
|

 |
Rost-Sipo
|

 |
Rust-sipo
|

1824 |  |
Natrix scurrula Wagler |
|  |
Coluber scurrula Wagler 1830 |
|  |
Herpetodryas carinatus scurrula Jan 1863 |
|  |
Chironius scurrulus Hoge & Maranhao Nina 1960-62 |
1854 |  |
Dendrophis viridis Duméril, Bibron & Duméril (Dixon, Wiest & Cei 1993) |
1876 |  |
Herpetodryas holochlorus Cope (Dixon, Wiest & Cei 1993) |
|  |
Chironius holochlorus Donoso-Barros 1969 |
|  |
Herpetodryas holochloris Malnate 1971 |

Remarks:
Previously included barrioi.
Distribution:
Bolivia,
Brazil
(Acre,
Amapa,
Amazonas,
Maranhao,
Mato Grosso,
Para,
Rondonia,
Tocantins),
Colombia,
Ecuador,
French Guiana,
Guyana,
Peru,
Surinam,
Trinidad & Tobago
(Trinidad),
Venezuela.
|

|

|
Chironius septentrionalis

 |
Northern Sipo, Forest Sipo
|

 |
Nördliche Sipo
|

 |
Nordlig Sipo
|

1978 |  |
Chironius multiventris septentrionalis Wiest |
|  |
Chironius septentrionalis Hollis 2006 |

Remarks:
Not listed for Brazil by Nogueira & al. (2019).
Distribution:
Brazil
(Roraima),
Trinidad & Tobago
(Trinidad),
Venezuela.
|

|

|
Chironius spixii

 |
Venezuelan Sipo
|

 |
Venezuelanische Sipo
|

 |
Venezuelansk Sipo
|

1845 |  |
Coluber Spixii Hallowell |
|  |
Chironius spixii Donoso-Barros 1969 |
|  |
Chironius carinatus spixii Dixon, Wiest & Cei 1993 |

Remarks:
Previously regarded as a synonym of carinatus (e.g., Peters & Orejas-Miranda 1970). Revalidated as a separate species by Hollis (2006), but already treated as such by Freiberg (1982).
Distribution:
Colombia,
Venezuela.
|

|

|
Chironius vincenti

 |
Saint Vincent Sipo, Saint Vincent Racer
|

 |
Saint-Vincent-Sipo
|

 |
Saint Vincent-sipo
|

1891 |  |
Herpetodryas carinatus var. vincenti Boulenger |
|  |
Herpetodryas vincenti Barbour 1914 |
|  |
Chironius vincenti Schwartz & Thomas 1975 |

Distribution:
Saint Vincent & the Grenadines
(Saint Vincent).
|

|

|
Chironius whipala

 |
Whipala Sipo
|

 |
Whipala-Sipo
|

 |
Whipala-sipo
|

2024 |  |
Chironius whipala Quinteros-Muñoz, Gómez-Murillo, Camacho-Badani, Aguayo, Carpio-Real, Pérez, Marca, Gonzales & Torres-Carvajal |

Distribution:
Bolivia.
|

|
|