Chamalycaeus specus (Godwin-Austen, 1889)

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

Chamalycaeus specus (Godwin-Austen, 1889)

Alycaeus specus Godwin-Austen, 1889: 347, pl. 37, figs 4, 4a.

Alycaeus (Alycaeus) specus - Kobelt 1902: 351.

Type locality.

"In limestone caves at Jambusan".

Material examined.

Caves, Borneo, leg. A. Everett, coll. Godwin-Austen, NHMUK 1889.12.7.26 (1 syntype).

Remarks.

The syntype is weathered and was glued to a piece of black paper by its R2 area, therefore limited information could be gained during its examination. The shell is depressed and conical; protoconch strongly weathered, but there were no signs of spiral striation near the suture; R1 regularly and strongly ribbed with very weak spiral striation; length of R2 could not be fully seen, but has low, dense riblets and fine spiral lines. We received photographs and good quality drawings of newly collected shells from Thor-Seng Liew and Jaap Vermeulen (pers. comm. August 2019), and those confirmed that this species is a Chamalycaeus due to the colourless shell, long R2, and relatively strong ribs.