Stomacosmethis rimatus (O. Boettger, 1893)

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

Stomacosmethis rimatus (O. Boettger, 1893) Fig. 45B

Alycaeus rimatus Boettger, 1893: 196-197.

Alycaeus (Alycaeus) rimatus - Kobelt 1902: 350; Zilch 1957: 147, pl. 6, fig. 31.

Type locality.

"Brunei, W.-Borneo".

Material examined.

N-Borneo, Brunei, leg. O. Staudinger, coll. O. Boettger, SMF 109315 (lectotype, designated by Zilch 1957); Same data, SMF 109316 (2 paralectotypes).

Remarks.

Protoconch very finely granulated, matte; R1 with irregular, strong ribs and much weaker spiral striation; R2 very short, with alternating darker/thicker and lighter/slimmer stripes, which are slightly elevated from the surface.

Figures

Figure 45. Shells of Stomacosmethis Bollinger, 1918 species A S. praetextus (van Benthem Jutting, 1959), paratype (SMF 186532) B S. rimatus (O. Boettger, 1893), lectotype (SMF 109315) C Stomacosmethis sadongensis (E. A. Smith, 1895), syntype (NHMUK 1893.6.7.73 - 76). Photographs: Barna Pall-Gergely, courtesy Ronald Janssen (A, B), Harold Taylor (C).