Messageria scalarioides donghiana Z.-Y. Chen & L.-W. Lin, n. ssp.

Figures 1E–H, 2A

Holotype: HBUMM 10058, a big cave in mountains between Fengshan County [Hechi City] and Leye County [Baise City], Guangxi Zhuang Autonomous Region, China, ex coll. Hao Yang, 2012 . Paratypes: CZY/1, LLW/1, same data as holotype.

Etymology. This name comes from the local Zhuang language “dongh”, which means “cave”.

Diagnosis. This subspecies can be distinguished from the nominate subspecies by the larger shell and wider lower whorls and umbilicus. Also, the aperture of M. scalarioides donghiana n. ssp. and 1/8 whorl behind it evidently deviate from the axis and umbilicus.

Measurements. H = 3.70 mm, W = 3.37 mm, D A = 1.89 mm (holotype).

Vernacular name. Į梯Ħfiḏ洞Ë亚ḋ xuán tī chóng lèi luó dòng xué yà zhǒng

Distribution. CHINA: Guangxi.