Pincerna globosa pygmaea (E. A. Smith, 1895)

Pall-Gergely, Barna, Sajan, Sheikh, Tripathy, Basudev, Meng, Kaibaryer, Asami, Takahiro & Ablett, Jonathan D., 2020, Genus-level revision of the Alycaeidae (Gastropoda, Cyclophoroidea), with an annotated species catalogue, ZooKeys 981, pp. 1-220 : 1

Pincerna globosa pygmaea (E. A. Smith, 1895)

Alycaeus globosus var. pygmaea E. A. Smith, 1895: 116.

Type locality.

"Mulu Mountain".

Material examined.

Mulu Mt., N. Borneo, NHMUK 1892.7.20.33 and 1893.6.8.10 (2 syntypes).

Remarks.

Protoconch matte, R1 with strong, regular, widely spaced, sharp ribs without spiral striations; R2 short with ribs that are similar to the ones on R1 in morphology and density.

Smith (1895) advised considering all forms of Alycaeus globosus under one species because there is "such a general resemblance throughout the series". Although this is true, the size difference between pygmaea and muluana are extreme. If they were truly collected from the same site, then they should be treated as distinct species. However, the accuracy of the localities is unknown.