Durgella russeola (Morelet, 1865) Fig. 4H

Vitrina russeola Morelet, 1865: 225. Type locality: Cochinchina. Breure et al. 2018: 416, figs 980, 981.

Megaustenia russeola: Schileyko 2011: 32.

Material examined.

Locality no. 7: CUMZ-CM030 (3 specimens in ethanol; Fig. 4H). The snails were found to live on tree trunks and leaves.

Distribution.

Vietnam (Schileyko 2011).

Remarks.

A syntype of Durgella russeola (Morelet, 1865) was figured in Breure et al. (2018: figs 980, 981); the type locality is “Cochinchina” . The shell of this species is globose, very thin (leather like or membranous) with a few calcareous elements, transparent, ovate conic. The shell has approximately 3 to 4 whorls, with an expanded last whorl, ovate aperture and closed umbilicus. Although there is no anatomical information at the moment, the distinct shell characteristics suggest that this species belongs to the semi-slug genus Durgella . Further additional anatomical examination is necessary since the shell morphology is insufficient for species identification.