Sibogasyrinx variabilis ( Schepman, 1913 ), 2025

Kantor, Yuri I., Fedosov, Alexander & Puillandre, Nicolas, 2025, Revision of the Indo-Pacific species of the genus Leucosyrinx Dall, 1889 (Neogastropoda: Conoidea: Pseudomelatomidae), European Journal of Taxonomy 999, pp. 1-126 : 116

Sibogasyrinx variabilis ( Schepman, 1913) comb. nov.

Fig. 36H

Surcula variabilis Schepman, 1913 (part.): 61(425), pl. 28 fig. 1a.

Comitas variabilis – Powell 1969: 281 (23-293), pl. 224 fig. 1.

Schepmania variabilis – Shuto 1970b: 38, pl. 3 figs 1–3.

Shutonia variabilis – Van der Bijl 1993: 146 (new generic name for Schepmania Shuto, 1970 , non Schepmania Haas, 1913 ).

Type material

Lectotype

INDONESIA • Ceram Sea ; 2°40′ S, 128°37.5′ E; depth 835 m; ZMA 136887 .

Remarks

The type series consisted of 12 specimens collected from the same station. Later, Shuto (1970b) observed that the series actually included three different species and described two of them based on the syntypes, Makiyamaia sibogae Shuto, 1970 , and Lucerapex schepmani Shuto, 1970 . Shuto applied the name Schepmania gen. nov. variabilis to three specimens. However, the genus was later renamed as Shutonia due to homonymy (van der Bijl 1993).

Examination of the photograph of the largest specimen (illustrated by Schepman 1913: pl. 28 fig. 1a) revealed that it possesses a subsutural row of nodules, more prominent on the upper whorls, which is characteristic of Sibogasyrinx and Comispira but not of other genera of Conoidea . Therefore, we transfer the species to Sibogasyrinx , rendering Shutonia a junior synonym.

Distribution

Type locality.

Figures

Fig. 36. Species excluded from Leucosyrinx Dall, 1889 and Comitas H.J. Finlay, 1926. A. Comispira obtusigemmata (Schepman, 1913) comb.nov., syntype, NATURALIS, ZMA.MOLL.137984, SL22.5 mm (photo courtesy of K. Hasegawa). B. Sibogasyrinx pikei (Dell, 1963) comb. nov., holotype, MNZ, M.016273, SL 35.5 mm (from the website of MNZ, https://collections.tepapa.govt.nz/object/150983). C. Comispira saudesae (Cossigniani, 2018) comb. nov., paratype, SL 30, 28.9 mm, collection of Jean Pierre Vezzaro (photos courtesy of T. Cossigniani). D. Comispira saudesae, MNHN-IM-2009-18998, Philippines, SL 22.8 mm (sequenced specimen). E–F. Comispira subsuturalis (von Martens, 1901) comb.nov.E. Syntype, SL 16.1 mm.F. Syntype, SL 22.1 mm (photo courtesy of Museum für Naturkunde). G. Sibogasyrinx suluensis (Powell, 1969) comb. nov., holotype, USNM 238399, SL 21.0 mm (photo courtesy of USNM).H. Sibogasyrinx variabilis (Schepman, 1913) comb. nov., lectotype, NATURALIS, ZMA.MOLL.136887, SL 18.5 mm (photo courtesy of K. Hasegawa). Shells not to scale.