Aulacospira panhai Dumrongrojwattana, 2008 Figures 2E, 3C

Aulacospira panhai Dumrongrojwattana 2008: 57-59, fig. 1.

Type locality.

Thailand, Khaopratun, an isolated limestone hill of Rayong Province; 13°07'19"N, 101°36'03"E.

Types examined.

Holotype. ZRCBUU 0220. Paratype. ZRCBUU 0293.

Material examined.

ZRCBUU 0353 (3 shells); Thailand, Khao Cha-ang Hayod, an isolated limestone hill of Chonburi Province; 13°09'40.6"N, 101°35'51.4"E; 31.i.2013; leg. Dumrongrojwattana, P. ZRCBUU 0393 (5 shells); Thailand, Khao Cha-ang Hayod, an isolated limestone hill of Chonburi Province; 13°09'40.6"N, 101°35'51.4"E; 23.vi.2014; leg. Dumrongrojwattana, P. ZRCBUU 0394 (2 shells); Thailand, Khaopratun, an isolated limestone hill of Rayong Province; 13°07'19"N, 101°36'03"E; 31.i.2013; leg. Dumrongrojwattana, P. ZRCBUU 0495 (2 shells); Thailand, Khao Cha-ang Hayod, an isolated limestone hill of Chonburi Province; 13°09'40.6"N, 101°35'51.4"E; 15. x. 2016, leg. Dumrongrojwattana, P.

Measurements.

H = 2.47-2.83 mm, W = 1.45-1.70 mm.

Diagnosis.

Shell minute, semi-depressed; spire distorted; brownish. Protoconch granulose; teleoconch smooth; the first two whorls slightly flatten; the last two whorls large and inflated; tuba short and downwardly directed; peristome expanded; aperture with six teeth, parietal and infraparietal lamellae, upper palatal and lower palatal and basal plicae, and columella lamellae (Fig. 2E).

Radula.

As in A. depressa (Fig. 3C).

Reproductive anatomy.

Unknown.

Distribution.

Chonburi and Rayong provinces, eastern Thailand (Fig. 1).