Genus Trenchia Knudsen, 1964

Type species

Trenchia wolffi Knudsen, 1964 (original designation), Recent, Kermadec Trench.

Remarks

Species of Trenchia closely resemble those of Xyloskenea Marshall, 1988, but the latter differ in having distinct spiral sculpture on the initial part of the protoconch. In Trenchia the protoconch is smooth (Warén & Bouchet 1993; Hoffman et al. 2020). Although the protoconch of the material discussed below is somewhat eroded, no spiral sculpture is evident and for this reason I refer the new species to Trenchia . This appears to be the first record of the genus from the Indian Ocean.