Trimerodytes
genus of reptiles
Trimerodytes is a genus of snakes in the subfamily Natricinae of the family Colubridae. The genus is endemic to East Asia and Southeast Asia.
Species
The genus Trimerodytes contains 7 species which are recognized as being valid.
Trimerodytes aequifasciatus (Barbour, 1908) – Asiatic annulate keelback, Asiatic water snake
Trimerodytes annularis (Hallowell, 1856) – red-bellied annulate keelback, ringed water snake
Trimerodytes balteatus Cope, 1895 – Hainan mountain keelback
Trimerodytes percarinatus (Boulenger, 1899) – eastern water snake, olive keelback, olive annulate keelback, Chinese keelback water snake
Trimerodytes praemaxillaris (Angel, 1929) – Angel's mountain keelback, brown stream snake
Trimerodytes yapingi (Guo, Zhu & Liu, 2019) – Jingdong water snake
Trimerodytes yunnanensis (Rao & Yang, 1998) – Yunnan water snake, Yunnan annulate keelback
Nota bene: A binomial authority in parentheses indicates that the species was originally described in a genus other than Trimerodytes.
References
Further reading
Rossman, Douglas A.; Eberle, W. Gary (1977). "Partition of the Genus Natrix, with Preliminary Observations on Evolutionary Trends in Natricine Snakes". Herpetologica 33 (1): 34–43. (Sinonatrix, new genus).
“Trimerodytes” enters the record as genus of reptiles. Crown Archives preserves that source wording while asking what Trimerodytes, genus and reptiles can confirm, complicate or overturn.
Why this record matters
“Trimerodytes” is worth following because a concise public description often conceals a longer documentary argument. Here, Trimerodytes, genus and reptiles provides the most credible route into that argument.
Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated May 17, 2026. The linked authority identifier is Q2455337. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1908, 1856, 1895 and 1899.
Scientific names, classifications and consensus can change while older terminology persists in catalogues and historical literature. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Trimerodytes” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.