Leucosyrinx sp.

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 : 62

Leucosyrinx sp. 16

Figs 20B , 21G–H

Material examined (sequenced)

PHILIPPINES • 1 lv; Luzon I.; 15°37′ N, 121°59′ E; depth 1273–1333 m; AURORA 2007, stn CP2754; MNHN-IM-2009-13401 .

Description

RADULA ( Fig. 20B ). Medium long, comprising about 30 rows of teeth, 11-12 nascent. Marginal teeth duplex, ~370 µm in length (4.6% AL without canal). Major limb narrow lanceolate in dorsal view, curved. Accessory limb about half of tooth width, ~0.75 of total tooth length, inserted into distinct deep socket on dorsal side of major limb.

DNA diagnosis (based on 1 (!) cox 1 sequence)

‘C’ in site 112, ‘T’ in site 205, ‘G’ in site 268, ‘G’ in site 511.

Remarks

The species is represented in our material by a single specimen (SL 25.7 mm). There is a certain resemblance to the not closely related L. exulans in shell shape and coloration. The differences are the following: significantly weaker spiral sculpture, light, nearly white canal, angulated shell base at transition to canal.

Figures

Fig. 20. Radulae of species of Leucosyrinx Dall, 1889. A. Leucosyrinx sp. 2, MNHN-IM-2009-16783, SL 27.9 mm. B. Leucosyrinx sp. 16, MNHN-IM-2009-13401, SL 25.7 mm. C–D. L. bernardeti sp. nov. C. Holotype, MNHN-IM-2013-48121, SL 34.4 mm. D. MNHN-IM-2007-17846, SL 27.3 mm. E. L. bolognai (Bozzetti, 2001), MNHN-IM-2009-16895, SL 43.3 mm. F. L. luzonica (Powell, 1969), MNHN-IM-2009-13444, SL 23.1 mm. G. L. quinetae sp. nov., MNHN-IM-2013-59549, SL 53.8 mm. H. L. breviplicata (E.A. Smith, 1899), MNHN-IM-2007-35063, SL 44 mm. I. Leucosyrinx sp. 26, MNHN-IM-2013-58381, SL 18.5 mm. Scale bars = 100 µm.

Fig. 21. A–F. Leucosyrinx exulans (Dall, 1890). A–C. Holotype, USNM 96499, SL 37 mm. D–F. MNHN-IM-2019-2111, SL 18.1 mm. G–H. Leucosyrinx sp. 16, MNHN-IM-2009-13401, SL 25.7 mm. I–M. Leucosyrinx bernardeti sp. nov. I–K. Holotype, MNHN-IM-2013-48121, SL 34.4 mm. L–M. MNHN-IM-2007-17846, Coral Sea, 603–630 m. N–O. Leucosyrinx sp. 3, MNHN- IM-2007-42445, Philippines, 357–372 m, SL 34.1 mm. All shells at the same scale.