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Xenochrophis trianguligerus (BOIE, 1827)

IUCN Red List - Xenochrophis trianguligerus - Least Concern, LC
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Higher TaxaColubridae (Natricinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: Triangle Keelback
G: Dreiecks-Fischnatter 
SynonymTropidonotus trianguligerus BOIE 1827: 535
Tropidonotus trianguligerus — SCHLEGEL 1837: 311
Tropidonotus umbratus var. — CANTOR 1847 (nec Coluber umbratus DAUDIN 1803, an objective synonym of Xenochrophis piscator SCHNEIDER)
Tropidonotus trianguligerus — DUMÉRIL, BIBRON & DUMÉRIL 1854: 590
Tropidonotus trianguligerus var. annularis FISCHER 1885
Tropidonotus trianguligerus — BOULENGER 1885: 389
Tropidonotus trianguligerus — BOULENGER 1893: 224
Tropidonotus trianguligerus — LÖNNBERG 1899
Natrix trianguligera — BARBOUR 1912
Tropidonotus trianguligerus — LIDTH DE JEUDE 1922: 243
Natrix trianguligera — SMITH 1943
Natrix trianguligera — TAYLOR 1965: 822
Natrix trianguligera — GRANDISON 1972: 83
Natrix trianguligera — GRANDISON 1978: 293
Sinonatrix trianguligera — ROSSMAN & EBERLE 1977
Sinonatrix trianguligerus — MANTHEY 1983
Xenochrophis trianguligerus — MALNATE & UNDERWOOD 1988: 195
Natrix trianguligera — SHINE 1994
Xenochrophis trianguligerus — MANTHEY & GROSSMANN 1997: 398
Sinonatrix trianguligera — RAO & YANG 1998
Xenochrophis trianguligera — COX et al. 1998: 44
Xenochrophis trianguligerus — MALKMUS et al. 2002
Xenochrophis trianguligerus — WALLACH et al. 2014: 799 
DistributionBrunei Darussalam, Burma (Myanmar), Cambodia,
India (Nicobar Islands);
Indonesia (Nias, Mentawai, Sumatra, Riau Archipelago, Bangka, Billiton, Borneo, Java, Bali, Sulawesi=Celebes, Sangihe Archipelago, Ternate, Natuna islands);
Laos, Malaysia (Malaya and East Malaysia);
Singapore; Thailand, Vietnam

Type locality: Java  
Reproductionoviparous 
TypesHolotype: RMNH RENA 1102 
DiagnosisDiagnosis: Internasals narrowed and truncate anteriorly; nasal divided completely or almost so; one preocular, three postoculars; temporals, 2 + 3; nine supralabials, fourth, fifth, and sixth entering orbit; scales in 19 rows. A broad olive to olive-brown median stripe, spotted or reticulated with gray-black; sides reddish with triangular or subquadrangular spots, the apices on ventrals; venter cream (reddish in life ). (Taylor 1965: 822)


Additional details (4309 characters) are available for collaborators and contributors. Please contact us for details. 
CommentSynonymy: partly after Boulenger 1893 and Wallach et al. 2014. 
References
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