Leucosyrinx undetermined

Leucosyrinx sp. 19 Fig. 23I Material examined (sequenced) SOLOMON ISLANDS • 1lv; NW of Malaita; 8°28′N, 160°32′E;depth 1250–1402 m; SALOMONBOA 3, stn CP2789; MNHN-IM-2007-42539. DNA diagnosis (based on 1 (!) cox 1 sequence) ‘C’ in site 442, ‘C’ in site 487, ‘G’ in site 586. Remarks The species is represented in our material by a single, probably subadult, shell (SL 26.8 mm). It is very similar to L. luzonica both in shell outline and spiral sculpture and falls within the intraspecific variability of L. luzonica. It was collected at slightly shallower depths – 1250–1402 m vs 1456–1762 for L. luzonica, although the depth ranges nearly overlap. The molecular analysis clearly indicates that the single specimen represents a separate species. We did not attribute the name luzonica to it since it was collected further from the type locality of L. luzonica than the specimens that we attribute herein to it. The species is also rather similar to Leucosyrinx arcana (339 m, Andaman Is.), although collected at much greater depths and having fewer axial ribs.