Megaustenia siamensis (Haines, 1855)

Vitrina siamensis Haines, 1855: 158. Type locality: Siam [Thailand].

Cryptosoma siamensis: Kobelt 1905: 1197, 1198, pl. 297, figs 7-9.

Megaustenia siamensis: Solem 1966: 78-84, figs 17-19.

Megaustenia siamense [sic]: Schileyko 2011: 32.

Material examined.

Syntype AMNH 43912 from “Siam” (1 shell; Fig. 37E). Specimens from Ban Namone village, Xayaboury District, Xayaboury Province (Figs 37F, 56G).

Distribution.

Cambodia, Myanmar, Thailand and Vietnam (Solem 1966, Schileyko 2011).