Pupisoma pulvisculum (Issel, 1874) Figure 45D

Helix (Fruticicola) pulvisculum Issel, 1874: 406-407, pl. 5, figs 24-27.

Type locality.

“Borneo” .

Material examined.

Gunung Doya: ME 9108, ME 9151. Gunung Kapor: ME 8152, ME 9055, ME 9210, ME 9470. Lobang Angin: ME 9258.

Distribution in Borneo.

Sarawak: Kuching, Miri, and Limbang divisions. Sabah: Sandakan and West Coast divisions. Distribution elsewhere. Lombok, Indonesia (Smith 1899).

Remarks.

Only dry shells were found during the surveys. It differs from Ptychopatula vermeuleni Maassen, 2000 and P. solemi Maassen, 2000 by having minutely rugulose shell surfaces (visible at 40 × magnification). For further details, see Pilsbry (1920-1921: 30-31).