Sarika sp. 3 Fig. 10F

Material examined.

Locality no. 11: CUMZ-CM088 (10 shells), CUMZ-CM092 (1 shell; Fig. 10F). The empty shells were collected among leaf litter in the limestone area.

Remarks.

The specimens from Phnom Kbal Romeas (locality no. 12) have a small shell (diameter ca. 10 mm), which is depressed, slightly thick, translucent, shiny, and pale reddish-brown. The shell surface is smooth with obvious irregular growth lines. The shell has 5 to 6 whorls, with wide and shallow suture. The spire is convex, with an elevated apex. The last whorl has a well-rounded periphery, with an ovate-lunate aperture and a simple lip. An umbilicus is widely open and deep.

These specimens can be distinguished from Macrochlamys psyche, Sarika sp. 1 and sp. 2 by having a small size and slightly elevated spire. In contrast, M. psyche and Sarika sp. 1 have a large, whitish shell and a flatten to slightly shrunken spire, while Sarika sp. 2 has a larger, reddish-brown shell with whitish area surrounding the umbilicus. Live specimens are required so that the anatomical characters can be used to discriminate among the species.