Anderson's Stream Snake

Anderson's Stream Snake (Opisthotropis andersonii) is a snake recorded for Vietnam in the project inventory. Its supporting occurrence note is “Expert range list”. The accepted scientific name is retained because regional snake taxonomy and species boundaries can change, while similar-looking species may require scale counts, anatomy or genetic evidence for reliable separation. This profile therefore distinguishes the recorded identity and occurrence from broader biological context instead of inventing unsupported locality, size, diet or breeding details (project species data; Reptile Database taxonomy).

Opisthotropis stream snakes are aquatic or semi-aquatic natricines associated with clear, flowing forest streams. They move among submerged rocks and streamside crevices while taking small aquatic prey such as fishes, tadpoles and invertebrates. Their specialized habitat and often narrow distributions make locality important in identification. These are genus-level ecological notes rather than confirmed observations for this particular species in Vietnam, and exact size, elevation, diet and reproductive values are not inferred (general Opisthotropis account; Reptile Database).