Dicharax oligopleuris ( Moellendorff , 1887)

Alycaeus oligopleuris Möllendorff , 1887a: 310-311.

Alycaeus oligopleuris - Möllendorff 1891: 342, pl. 30, figs 9, 9b.

Alycaeus (Chamalycaeus) oligopleuris - Kobelt 1902: 360-361.

Chamalycaeus (Chamalycaeus) oligopleuris - Zilch 1957: 144, pl. 5, fig. 9.

Dicharax oligopleuris - Páll-Gergely et al. 2017: 45, fig. 31E.

Type locality.

"Ad Buket Pondong".

Material examined.

Malakka: Perak, coll. Möllendorff , SMF 109226 (lectotype, designated by Zilch 1957); Same data, SMF 109227 (2 paralectotypes).

Remarks.

Protoconch low, without spiral striae; R1 with widely spaced, strong ribs, which are the most prominent near the suture and become lower away from it; R2 very short, consists of ca. 15 ribs, which are curved towards the aperture.