Plestiodon oshimensis
Rare visitor: recorded only occasionally in this country
Plestiodon oshimensis (Plestiodon oshimensis) is the Oshima Blue-tailed or Ousima Skink, a smooth-bodied island Plestiodon whose younger stages carry conspicuous blue in the tail. 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 Amami Islands in the northern Ryukyus; further species-level behavioural and reproductive information is omitted because it was not established by the opened account. 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.