Sakishima Green Snake

Sakishima Green Snake (Ptyas herminae) is a slender green-toned colubrid known from Japan's southern islands, with a long body suited to active movement. Identification should combine documented pattern, scalation, body form and locality because related Japanese reptiles may be very similar. Claims here are limited to the opened species accounts (Wikipedia, general species account; Reptile Database). Field identification should therefore remain cautious wherever photographs or diagnostic measurements are unavailable.

It is endemic to the Yaeyama Islands in the southern Ryukyus; accessible accounts establish identity and restricted range but provide limited further species-level ecology. Information absent from those species-level sources is omitted rather than inferred from relatives. Japanese occurrence follows the site's catalogue and the opened distribution accounts (Wikipedia, general species account; Reptile Database). This conservative treatment keeps unresolved parts of its natural history clearly visible to readers.