Chamalycaeus microconus ( Moellendorff , 1887)

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 microconus ( Moellendorff, 1887) Fig. 11A

Alycaeus microconus Möllendorff, 1887a: 311-312.

Alycaeus microconus - Möllendorff 1891: 343, pl. 30, figs 12, 12a, 12b.

Alycaeus (Chamalycaeus) microconus - Kobelt 1902: 358.

Chamalycaeus (Chamalycaeus) microconus - Zilch 1957: 143, pl. 5, fig. 6.

Type locality.

"Ad Buket Pondong".

Material examined.

Malakka: Bukit Pondong (Perak), SMF 109493 (lectotype, designated by Zilch 1957); Same data, SMF 109494 (2 paralectotypes).

Diagnosis.

Protoconch rather low, without obvious spiral lines, the granules following a near spiralling arrangement, but not at all similar to the multiple, narrow spiral striae typical to most Metalycaeus species; R1 with rather regular ribs and strong spiral lines; R2 extremely short, with only ca. five ribs which are blunt (probably bent?). Operculum unknown.

Figures

Figure 11. Shells of Chamalycaeus Moellendorff, 1897 species A Chamalycaeus microconus (Moellendorff, 1887), lectotype (SMF 109493) B C. mixtus Zilch, 1957, holotype (SMF 109510). All images: Barna Pall-Gergely, courtesy Ronald Janssen.