Cryptozona siamensis (Pfeiffer, 1856)

Helix siamensis Pfeiffer, 1856a: 32. Type locality: Siam [Thailand]. Pfeiffer 1856b: 76, 77, pl. 21, figs 7-9.

Nanina (Hemiplecta) siamensis: Kobelt 1905: 1136, pl. 285, figs 10, 11.

Hemiplecta (Hemiplecta) siamensis: Solem 1966: 27.

Cryptozona siamensis: Hemmen and Hemmen 2001: 43.

Material examined.

Specimens from Tad Pha Soam waterfall, Paksong District, Champasak Province (Figs 35A, 56B).

Distribution.

Cambodia, Laos and Thailand (Solem 1966).