Hebius ishigakiensis

Hebius ishigakiensis (Hebius ishigakiensis) is the Yaeyama Keelback, a slender colubrid with keeled scales and the general body form of East Asian Hebius. 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 Ishigaki and Iriomote in Japan's southernmost Yaeyama Islands; other ecological traits are omitted because the accessible account was sparse. 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.