Dicharax microdiscus ( Moellendorff , 1887)

Alycaeus microdiscus Möllendorff , 1887a: 311.

Alycaeus microdiscus - Möllendorff 1891: 343.

Alycaeus (Chamalycaeus) microdiscus - Kobelt 1902: 358.

Chamalycaeus (Chamalycaeus) microdiscus - Zilch 1957: 143, pl. 5, fig. 8; Egorov 2013: 35, fig. 62b.

Dicharax microdiscus - Páll-Gergely 2017: 25, fig. 15D.

Type locality.

"Ad Buket Pondong".

Material examined.

Malakka, Bukit Pondong (Perak), coll. Möllendorff , SMF 109496 (lectotype, designated by Zilch 1957); Same data, SMF 109497 (3 paralectotypes); Perak, leg. Hungerford, NHMUK 1891.3.17.794-796 (3 possible paralectotypes).

Remarks.

Protoconch low, glossy, no spiral lines visible; R1 irregularly, finely ribbed without spiral lines; R2 with ribs curved towards the aperture (typical Dicharax ).