Succinea obesa (Martens, 1867) Figure 21C

Succinea obesa Martens, 1867: 387, pl. 22, fig. 21.

Type locality.

"Oestliches Java, am See von Grati bei Passuruan gesammelt".

Material examined.

Gunung Batu: ME 2903, ME 8820.

Distribution in Borneo.

Sarawak: Kuching Division. Distribution elsewhere. Sumatra, Java, and Madura, Indonesia (Van Benthem-Jutting 1952).

Remarks.

Only dry shells were found during the surveys. The shells from Bau match the descriptions of Succinea obesa Martens, 1867 sensu Van Benthem-Jutting (1952). Two other species, namely Succinea borneensis Pfeiffer, 1853 and Succinea subrugata Pfeiffer, 1853, were described from Borneo. However, the original descriptions of these two species were not detailed enough for species identification.