Citation: Midtgaard, Rune. RepFocus - A Survey of the Reptiles of the World. (www.repfocus.dk).
Latest update:
October 9th, 2024.
 
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Genus
Gonyosoma
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Oriental Green Rat Snakes
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Asiatische Spitzkopfnattern, Falsche Kletternattern
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Spidshovedede Rottesnoge
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1828 |  |
Gonyosoma Wagler (type species: Gonyosoma viride Wagler 1828) |
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1849 | |
Alopecophis Gray (type species: Alopecophis chalybeus Gray 1849; syn. Smith 1943) |
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1861 | |
Aepidea Hallowell (type species: Aepidea robusta Hallowell 1860; syn. Smith 1943) |
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1872 | |
Allophis Peters (type species: Elaphis nigricaudus Bleeker 1858; syn. Iskandar & Colijn 2001) |
Contents:
2 species, of which 1 (50.0%) is endemic.
Endemism: 0%  100%
Remarks:
This genus has had a turbulent history with some authors regarding it as valid (e.g., Dowling 1958), while others have regarded it as a synonym of
Elaphe (e.g., Schulz 1996).
Previously included
Gonyophis,
Rhadinophis,
Rhynchophis, as well as the species now assigned to
Verdigrophis.
Coelognathus enganensis has been regarded by some authors as a distinct species belonging to this genus
(e.g., Dowling 1958).
Distribution:
SE. Asia, Malay Archipelago.
Reported from:
Brunei,
Cambodia,
India
(Andaman Islands),
Indonesia
(Bali,
Bangka,
Belitung,
Buton,
Java,
Kabaena,
Kalimantan,
Karimata Islands,
Legundi,
Lombok,
Natuna Islands,
Nias,
Panaitan,
Riau Islands,
Sebuku,
Selayar,
Sulawesi,
Sumatra),
Laos,
Malaysia
(Sabah,
Sarawak,
West Malaysia
[incl.
Langkawi Archipelago,
Seribuat Archipelago
(incl.
Tioman)]),
Myanmar,
Philippines
(Babuyan Islands
[Calayan,
Camiguin Norte],
Balabac,
Batan Islands
[Batan,
Itbayat,
Sabtang],
Bohol,
Camiguin Sur,
Dinagat,
Dumaran,
Lubang,
Luzon,
Mindanao,
Mindoro,
Negros,
Palawan,
Panay,
Samar,
Sibuyan,
Sulu Islands
[Bongao]),
Singapore,
Thailand,
Vietnam.
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Gonyosoma jansenii
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Sulawesi Black-tailed Rat Snake, (Jansen's Rat Snake, Jansen's Racer)
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Sulawesi-Schwarzschwanznatter
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Sorthalet Rottesnog
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1858 | |
Gonyosoma jansenii Bleeker |
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Coluber janseni Boulenger 1894 |
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Elaphe jansenii Haas 1950 |
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1872 | |
Allophis nigricaudus Peters (syn. Iskandar & Colijn 2001) |
Remarks:
Taxonomic inclusion in the genus Gonyosoma confirmed by Helfenberger (2001). Insufficient evidence of presence in Thailand (Cox 1991).
Distribution:
Indonesia
(Buton,
Kabaena,
Selayar,
Sulawesi).
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Gonyosoma oxycephalum
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Red-tailed Green Rat Snake, Red-tailed Rat Snake, Mangrove Rat Snake, Red-tailed Racer, Red-tailed Trinket Snake, Brown-tailed Racer, Grey-tailed Racer
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Rotschwanznatter, Spitzkopfnatter
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Rødhalet Rottesnog, Rødhalet Klatresnog
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1827 | |
Coluber oxycephalus Boie |
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Herpetodryas oxycephalus Schlegel 1837 |
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Elaphe oxycephala Griffin 1909 |
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Gonyosoma oxycephalum Duméril & Bibron 1854 |
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1828 | |
Gonyosoma viride Wagler (syn. Smith 1943) |
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1849 | |
Alopecophis chalybeus Gray (syn. Smith 1943) |
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1860 | |
Æpidea robusta Hallowell (syn. Smith 1943) |
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1925 | |
Coluber floweri Werner (syn. Smith 1943; David, Cox, Pauwels, Chanhome & Thirakhupt 2004) |
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Gonyosoma floweri Chan-ard, Parr & Nabhitabhata 2015 |
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1926 | |
Coluber janseni elegans Werner (syn. Smith 1943; David, Cox, Pauwels, Chanhome & Thirakhupt 2004) |
Remarks:
The nominal taxa elegans and floweri simply represent different colour morphs of oxycephalum
(Smith 1943; Schulz 1996; David, Cox, Pauwels, Chanhome & Thirakhupt 2004),
although Taylor (1965) and Chan-ard, Parr & Nabhitabhata (2015) regarded floweri as valid.
Records from Sulawesi may refer to janseni (Lang & Vogel 2005).
Leviton, Siler, Weinell & Brown (2018) did not include Itbayat (Batan Islands) and Mindoro in the distribution of the species.
Distribution:
Brunei,
Cambodia,
India
(Andaman Islands),
Indonesia
(Bali,
Bangka,
Belitung,
Java,
Kalimantan,
Karimata Islands,
Legundi,
Lombok,
Natuna Islands,
Nias,
Panaitan,
Riau Islands,
Sebuku,
Sumatra),
Laos,
Malaysia
(Sabah,
Sarawak,
West Malaysia
[incl.
Langkawi Archipelago,
Seribuat Archipelago
(incl.
Tioman)]),
Myanmar,
Philippines
(Babuyan Islands
[Calayan,
Camiguin Norte],
Balabac,
Batan Islands
[Batan,
Itbayat,
Sabtang],
Bohol,
Camiguin Sur,
Dinagat,
Dumaran,
Lubang,
Luzon,
Mindanao,
Mindoro,
Negros,
Palawan,
Panay,
Samar,
Sibuyan,
Sulu Islands
[Bongao]),
Singapore,
Thailand,
Vietnam.
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Gonyosoma oxycephalum
© Rune Midtgaard
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