Stomacosmethis praetextus (van Benthem Jutting, 1959)

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 praetextus (van Benthem Jutting, 1959) Fig. 45A

Alycaeus praetextus van Benthem Jutting, 1959: 78-79, pl. 1, fig. 1.

Type locality.

"Batu Sangkarnear Pajakombo, Padang Highlands".

Material examined.

Sumatra: Batew Sangkar, Pajakumbok, leg. Dr. Meyer, 13.12.1955, SMF 186532 (4 paratypes).

Remarks.

Protoconch very finely granulated, matte; R1 with rather irregular ribs and somewhat weaker spiral striation; R2 very short, with alternating thicker/darker and narrower/lighter 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).