Turridrupa decorata Stahlschmidt, Puillandre, Olivera & Kantor sp. nov.

(Figs. 11 A–F)

Type material

HOLOTYPE: Philippines, Bohol, Panglao, 50–150 m, by tangle nets, around 1995, 15.4 mm, (MNHN-IM- 2000- 30408, Figs. 11 A–C).

PARATYPE 1: Philippines, PANGLAO 2004, Stn L69-73, 9°30.7'N, 123°40.9/41.0'E, 90–98 m (MNHN-IM- 2000- 30409, Figs. 11 D–F)

PARATYPE 2: same locality as Paratype 1 (PS-1077) .

PARATYPE 3: Philippines, PANGLAO 2004, Stn L51-60, 09°37.7'N, 123°47.9–48.1'E, 43–60m (PS-1078) .

Material examined

PHILIPPINES: PANGLAO 2004: Stn L69-73, 3 spms. (MNHN-IM-2014-97).— VANUATU: SANTO 2006: Stn. DS103, 1 spm, (MNHN-IM-2014-179)—DS108, 1 spm, (MHNH-IM-2014-180).

Distribution

So far only known from the Philippines and Vanuatu, in depths between 50 and 150 m.

Description

Shell medium-sized for genus, up to 15.4 mm in height; somewhat broadly fusiform to claviform, with spire about 1.5 times height of aperture including siphonal canal, with 7–8 convex teleoconch whorls; suture shallow, indistinct; siphonal canal rather long, curved to right, terminally truncate, barely indented; anal sinus very deep at the termination of the second spiral cord, U-shaped, but constricted at the opening, outer lip projecting conspicuously on anterior side of anal sinus; parietal callus-pad well developed and thick; lip preceded by a high and broadly convex varix.

Sculpture of prominent and thick spiral cords with sloping sides, 3 on spire whorls, increasing to 4 on penultimate whorl, spiral cords narrower than their intervals; with laterally elliptical and low gemmules, about 20 per spiral and whorl, stronger developed on sinus cord and third spiral cord; last whorl with about 8 strong spiral cords, intervals between cords with up to 4 very fine spiral threads (mainly on the anterior part); no axial sculpture.

Protoconch domed, of about 2.75 whorls, latest 1.75 whorls with arcuate prosocline opisthocline axial riblets (occasionally less prosocline on the early part).

Colour buff to whitish-cream with diffuse light brown blotches, spiral cords maculated with golden brown spots, mainly situated in the interspaces of the gemmules.

Remarks

Turridrupa decorata sp. nov. remotely resembles T. consobrina Powell, 1967 but differs in the larger size, the more angular outline (due to the elevated sinus and peripheral cords), the distinctly longer siphonal canal, the deeper anal sinus, and the different colouration. For differences to Turridrupa imitiata sp. nov. we refer to the remark section of that species. Turridrupa decorata sp. nov. differs from Turridrupa gourgueti sp. nov. by the larger size, the longer siphonal canal, the more convex whorls, the different shaped anal sinus, the longer protoconch, and the different colouration.

Ethymology

The name refers to the colour pattern of the species which is intensively decorated with maculation and blotches.