Opisthostoma brachyacrum lambi (Vermeulen, 1991) Figure 10C

Opisthostoma lambii Vermeulen, 1991a: 155.

Type locality.

"SARAWAK. 1st Div.: W of Kpg. Lobang Batu 12.5 km S of Tebakang".

Material examined.

Gunung Sebayat: ME 8002. Bukit Sekunyit: ME 0311. Gunung Doya: ME 0287, ME 9082, ME 9246. Gunung Kapor: ME 0281, ME 0310, ME 2875, ME 8978, ME 9003, ME 9077. Kampung Padang Pan: ME 6670. Lobang Angin: ME 9106, ME 9147, ME 9224.

Distribution in Borneo.

Sarawak: Kuching, Serian and Kapit divisions. Sabah: Interior and West Coast divisions. Endemic to Borneo.

Remarks.

Living snails were observed foraging among leaf litter and plant debris near the cliff in a lowland limestone forest.