Leucosyrinx aequatorialis Thiele, 1925

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 : 91-92

Leucosyrinx aequatorialis Thiele, 1925

Fig. 32A

Leucosyrinx aequatorialis Thiele, 1925: 182 (216), pl. 23(35) fig. 22.

Comitas aequatorialis – Powell 1969: 282 (23-294), pl. 224 fig. 3.

Type material

Holotype

INDIAN OCEAN • off East Africa ; 1°48.2′ N, 45°42.5′ E; depth 1644 m; ZMB.

Remarks

The species is known only from the immature holotype (SL 13 mm).

The shell shape, sculpture pattern, and the shape of the subsutural anal sinus fit well within the variability observed in the species of Leucosyrinx as defined here. The lack of the nodules on the shoulder of the last whorl is a character found in different species of Leucosyrinx . Given that the anal sinus shape aligns more closely with species of Leucosyrinx than with Comitas , we propose transferring the species to the former genus.

Distribution

Known only from type locality.

Figures

Fig. 32. Types of species of Leucosyrinx Dall, 1889 known only from empty shells. A. L. aequatorialis Thiele, 1925, holotype, SL 13 mm (from Thiele 1925). B. L. anteridion (Watson, 1881) comb. nov., holotype, SL 22.1 mm (images by Aimee McArdle, NHMUK Photographic Unit). C. L. arcana (E.A. Smith, 1899) comb. nov., syntype, ZSI, M 926/1, SL 25.0 mm (from Annandale & Stewart 1909: pl. 9 fig. 6–6a). D. L. curviplicata (Sysoev, 1996) comb nov., holotype NHMUK 1993092, SL 32. 4 mm (images by Aimee McArdle, NHMUK Photographic Unit). E. L. eurina (E.A. Smith, 1899) comb. nov., paratype NHMUK 1904-6-15-139, SL 39 mm (photo courtesy of NHMUK). F. L. halicyria (Melvill, 1904) comb. nov., holotype, NHMUK 1905-7-14-49, SL 32.0 mm. G. L. julia Thiele, 1925, syntype, ZMB Mol 109379, SL 10.6 mm (photo courtesy of Museum für Naturkunde). H. L. pagodaeformis (Schepman, 1913) comb. nov, figured syntype, NATURALIS, ZMA.MOLL.137728, SL 28.7 mm (photo courtesy of K. Hasegawa). Shells not to scale.