Leucosyrinx sp. 8

Figs 10H, 13J–K

Material examined (sequenced)

SOUTHERN NEW CALEDONIA • 1 lv; Pass de la Sarcelle, 22°27′ N, 167°25′ E; depth 470–570 m; TERRASSES, stn DW3083; MNHN-IM-2009-29323 .

Description

RADULA (Fig. 10H). Marginal teeth duplex, ~240 µm in length (4.6% AL without canal). Major limb medium broad, lanceolate in dorsal view, curved. Accessory limb 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 286, ‘C’ in site 428, ‘C’ in site 436.

Remarks

This medium-sized (SL 20.1 mm) species is represented by a single specimen. Since the variability is unknown, we abstain from a formal description of the new species.

It is similar to Leucosyrinx sp. 22 (Fig. 13G–I), also from southern New Caledonia, although the phylogenetic tree demonstrates that they are not closely related. Conchologically it differs in a much better developed spiral sculpture of irregularly and broadly-spaced spiral cords.

Distribution

New Caledonia, 470– 570 m.