Leucosyrinx palawanica ( Powell, 1969 ), 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 : 99

Leucosyrinx palawanica ( Powell, 1969) comb. nov.

Fig. 33A

Comitas aequatorialis palawanica Powell, 1969: 282 (23-294), pl. 225 figs 5–6.

Type material

Holotype

PHILIPPINES • Palawan Passage ; 10°46′40″ N, 118°29′ E; depth 515 ftm (= 941 m); Albatross , stn 5350; USNM 237910 .

Remarks

The species is known from a single holotype with SL of 43.5 mm. The shell sculpture pattern and the shape of the subsutural anal sinus fit well within the variability observed in species of Leucosyrinx as defined here. Therefore, we transfer the species to Leucosyrinx . Originally, it was described as a subspecies of L. aequatorialis Thiele, 1925 , but differs markedly in size (43.5 mm vs 13 mm). Additionally, in L. aequatorialis , the last whorl lacks axial ribs and a shoulder carina, while the carina is well-developed in L. palawanica . Therefore, we consider it a separate species.

Distribution

Type locality.

Figures

Fig. 33. Types of species of Leucosyrinx Dall, 1889 known only from empty shells. A. L. palawanica (Powell, 1969) comb. nov., holotype USMNM 237910, SL 43.5 mm. B–D. L. paupera (Watson, 1881) comb. nov. B. Lectotype, NHMUK 1887.2.9.1009, SL 40.1 mm. C. Paralectotype NHMUK 1887-2-9- 1010, SL 33.3 mm (= Borsoniidae, genus and species uncertain). D. Paralectotype NHMUK 1887-2-9- 1011, SL 18.5 mm (= L. arcana). E. L. undosa (Schepman, 1913) comb. nov., holotype, NATURALIS, ZMA.MOLL.136841, SL 29.5 mm (photo courtesy of K. Hasegawa).F. L. erilda (Dall, 1908), holotype, USNM 123091, SL 18 mm (photo courtesy of USNM). G. L. powelli (Rehder & Ladd, 1973), holotype, USNM 703267, SL 13.0 mm (photo courtesy of USNM). H. L. suratensis (Thiele, 1925), holotype, ZMB Moll 60072, SL 16.6 mm (photo courtesy of Museum für Naturkunde). Shells not to scale.