Aulacospira khaopratun Dumrongrojwattana & Panha, 2005 Figures 2C, 3B

Aulacospria khaopratun Dumrongrojwattana and Panha 2005: 15-16, fig. 2.

Type locality.

Thailand, Khaopratun, an isolated limestone hill of Rayong Province; 13°07'18"N, 101°36'03"E.

Types examined.

Holotype. ZRCBUU 0072 (BuUZM-MS 0072) (Fig. 2C, D). Paratype. ZRCBUU 0073 (BuUZM-MS 0073).

Material examined.

ZRCBUU 0298 (10 shells); Thailand, Khao Cha-ang Hayod, an isolated limestone hill of Chonburi Province; 13°09'40.6"N, 101°35'51.4"E; 23.iii.2008; leg. Dumrongrojwattana, P. ZRCBUU 0350 (15 shells); Thailand, Subthaworn Temple, a place located in an isolated limestone hill of Srakeo Province; 13°24'19.5"N, 102°16'29.8"E; 19.vi 2010; leg. Inmadon, R. ZRCBUU 0440 (12 shells); Thailand, Phet Pananikom Temple, a place located in an isolated limestone hill of Srakeo Province; 13°29'17.5"N, 102°04'48.6"E; 12.vii. 2015; leg. Inmadon, R. ZRCBUU 0490 (12 shells); Phet Pananikom Temple, a place located in an isolated limestone hill of Srakeo Province; 13°29'17.5"N, 102°04'48.6"E; 23.vi. 2016; leg. Inmadon, R.

Measurements.

H = 1.61-1.80 mm, W = 1.81-2.3 mm.

Diagnosis.

Shell minute, depressed; spire moderately high; brownish. Protoconch smooth; teleoconch smooth; body whorl large, with two prominent spiral carinae; tuba short; peristome expanded; aperture lacking teeth.

Radula.

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

Genital system.

Unknown

Distribution.

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