Leucosyrinx halicyria ( Melvill, 1904 ), 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 : 96

Leucosyrinx halicyria ( Melvill, 1904) comb. nov.

Fig. 32F

Pleurotoma (Surcula) halicyria Melvill, 1904: 164–165 , pl. 10 fig. 16.

Comitas halicyria – Powell 1969: 286 (23-298), pl. 220 fig. 4, with query.

Pleurotoma (Surcula) halicyria – Kantor et al. 2022: fig. 12b.

Type material

Holotype

INDIAN OCEAN • 1 spec., SL 32.0 mm; Gulf of Oman; 24°49′ N, 56°56′ E, 225 ftm (= 411 m), NHMUK 1905-7-14 -49.

Remarks

The species is known only from the holotype. There are no sequenced species of Leucosyrinx that resemble L. halicyria . We attribute it to the genus with some doubts, but remove it from Comitas on the basis of the shape and position of the subsutural anal sinus, occupying the entire subsutural ramp, like in other Leucosyrinx spp.

Distribution

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.