Microcystina physotrochus Vermeulen, Liew & Schilthuizen, 2015

Phung, Chee-Chean, Yu, Fred Tuh Yit & Liew, Thor-Seng, 2017, A checklist of land snails from the west coast islands of Sabah, Borneo (Mollusca, Gastropoda), ZooKeys 673, pp. 49-104 : 50

Microcystina physotrochus Vermeulen, Liew & Schilthuizen, 2015 Figure 12B, C

Type locality.

"Malaysia: Sabah: Sandakan-Kinabatangan Valley, Batu Keruak 2, near Sukau" ( Vermeulen et al. 2015)

Examined materials.

Pulau Gaya: BOR/MOL 8451, BOR/MOL 8457, BOR/MOL 8464, BOR/MOL 8478, BOR/MOL 8482, BOR/MOL 8447, BOR/MOL 8507, BOR/MOL 8498. Pulau Lungisan: V 9862 (Not seen).

Distribution in Sabah.

Island: [West] Pulau Gaya, Pulau Lungisan. Mainland: West Coast Division, Interior Division, Sandakan Division, and Tawau Division.

Remarks.

Endemic to Borneo and widespread in Sabah. The specimen BOR/MOL 8457 consists of a single white, translucent shell (Figure 12C ) which differs from other brown shells.

Figures

Figure 12. Family Ariophantidae. A Microcystina callifera (BOR / MOL 7176) B Microcystina physotrochus (BOR / MOL 8457) C Microcystina physotrochus (BOR / MOL 857) D Microcystina muscorum (BOR / MOL 8920) E Microcystina sp. 1 (BOR / MOL 1286) * Probably juvenile F Microcystina sp. 2 (BOR / MOL 10352) * Broken shell.