Vogel and David (2012) reviewed the complex taxonomic history of the genus Xenochrophis, with a focus on resolving relationships within the Xenochrophis piscator group, the members of which are clearly distinct from other Xenochrophis. Their taxonomic revision of the of Xenochrophis piscator species group was based on univariate analyses of external morphological characters of snakes from across the group’s geographic range (the authors state that complementary molecular phylogenetic analyses are planned). The members of the Xenochrophis piscator group are among the most common snake species in the Oriental region, but have a long and confused taxonomic history. Vogel and David (2012) includes an extensive analysis of historical synonyms, with many photographs, and details what the authors recognize as valid taxa.
According to Vogel and David (2012), the genus Xenochrophis now includes the following 12 species: X. asperrimus (Boulenger, 1891), X. bellula (Stoliczka, 1871), X. cerasogaster (Cantor, 1839; type species of the genus Xenochrophis by monotypy), X. flavipunctatus (Hallowell, 1861), X. maculatus (Edeling, 1864), X. melanzostus(Gravenhorst, 1807), X. piscator (Schneider, 1799), X. punctulatus (Günther, 1858), X. schnurrenbergeri Kramer, 1977, X. tytleri (Blyth, 1863), X. trianguligerus (Boie, 1827), and X. vittatus (Linnaeus, 1758).
On a purely morphological basis, Vogel and David distinguish two informal groups of species:
Vogel and David note that revisions of snake genera from the Oriental region in recent years have generally revealed considerable previously unrecognized diversity and that this pattern is likely to continue. They, further, suggest that revisions of widely distributed genera often cannot be carried out by native herpetologists by themselves because most of the preserved material (and older literature) is dispersed over collections in western countries, but that native workers have the advantage of conducting fieldwork more easily. Thus, general revisions such as Vogel and David (2012) can offer local herpetologists a framework for undertaking regional revisions based on fresh materials collected from selected localities.
(Vogel and David 2012 and references therein)
Xenochrophis is a genus of snakes in the subfamily Natricinae of the family Colubridae. The genus is endemic to Asia. Some members have been moved to the genus Fowlea.
The generic nomen of Xenochrophis is presumably derived from the Greek xénos, meaning foreign, strange; chros, meaning color; and ophis, meaning snake. The generic nomen probably refers to the distinctive color pattern of this type species. The gender of this generic name is masculine.
The following species are recognized as being valid.[1]
Xenochrophis is a genus of snakes in the subfamily Natricinae of the family Colubridae. The genus is endemic to Asia. Some members have been moved to the genus Fowlea.