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 : 40

Leucosyrinx sp. 24

Figs 10F , 13F

Material examined (sequenced)

NEW CALEDONIA • 1 lv; SE of Ile des Pins ; 23°00′ S, 167°55′ E; depth 845–856 m; KANACONO, stn DW4782; MNHN-IM-2009-66098 .

Description

RADULA ( Fig. 10F ). Short, comprises around 25 rows of teeth, 10 nascent. Marginal teeth duplex, ~250 µm in length (5.4% AL without canal). Major limb narrow lanceolate in dorsal view, curved. Accessory limb relatively broad, constitutes slightly over 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 19, ‘C’ in site 319, ‘C’ in site 346.

Remarks

This species is represented in our material by a single broken specimen (SL 21.6 mm) and thus we abstain from its formal description. Conchologically it is similar to Leucosyrinx sp. 23.

Distribution

New Caledonia, 845– 856 m.

Figures

Fig. 10. Radulae of species of Leucosyrinx Dall, 1889. A. L. oliverioi sp. nov., holotype, MNHN- IM-2007-17928, SL 37.5 mm.B–C. L. claviforma, MNHN- IM-2013-58303, SL 19.1 mm.B. Dorsal view of the radula membrane. C. Bending plane, showing marginal teeth in different views. D–E. L. urbanae sp. nov., MNHN-IM- 2009-17215, SL 14.1 mm. D. Dorsal view of the radula membrane. E. Bending plane, showing marginal teeth in different views. F. Leucosyrinx sp. 24, MNHN-IM-2013-66098, SL 21.6 mm. G. Leucosyrinx sp. 22, MNHN-IM-2013-48155, SL 24.2 mm. H. Leucosyrinx sp. 8, MNHN-IM-2009-29323, SL 20.1 mm. I. L. boiteuxi sp. nov., MNHN-IM-2013-19848, SL 46.5 mm. Scale bars = 100 µm.

Fig. 13. A–D. Leucosyrinx urbanae sp. nov. A–C. Holotype, MNHN-IM-2009-18962, SL 14.2 mm. D. MNHN-IM- 2009-17215, Papua New Guinea, 499–517 m, SL 14.1 mm. E. Leucosyrinx sp. 23, MNHN-IM-2009-29312, SL 18.0 mm. F. Leucosyrinx sp. 24, MNHN-IM-2013-66098, SL 21.6 mm. G–I. Leucosyrinx sp. 22. G–H. MNHN-IM-2009-29110, southern New Caledonia, 756–769 m, SL 22.4 mm. I. MNHN-IM-2013-48160, Coral Sea, 900–950 m, SL 22.6 mm. J–K. Leucosyrinx sp. 8, MNHN-IM- 2009-29323, southern New Caledonia, 470–570 m, SL 20.1 mm. All shells at the same scale.