Turridrupa chinoi Stahlschmidt, Puillandre, Olivera & Kantor, 2025

Stahlschmidt, Peter, Kantor, Yuri I., Zuccon, Dario, Olivera, Baldomero M. & Puillandre, Nicolas, 2025, Revision of the genus Turridrupa (Gastropoda, Turridae) with description of 15 new species, Zootaxa 5708 (1), pp. 1-66 : 54-55

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

( Figs. 19 H–N )

Type material

HOLOTYPE: Philippines, Bohol, Panglao , ca. 100 m ( MNHN-IM- 2000-37772, Figs. 19 H–J ).

PARATYPE 1: Philippines, Bohol, Panglao , ca. 30 m (PS-1074, Figs. 19 M–N ) .

PARATYPE 2: type locality (Chino collection, Fig. 19 K ).

PARATYPE 3: Philippines, Bohol, Panglao, off Momo Beach , ca. 50 m ( MNHN-IM- 2014-831) .

Material examined

VANUATU: SANTO 2006, Stn. DS102, 1 spm (MNHN-IM-2014-212).

Distribution

Presently only known from the Philippines and Vanuatu ( 30–100 m).

Description

Shell small-sized for genus, up to 10.8 mm in height; clavi- to-fusiform with about 7 teleoconch whorls, spire 1.5 height of the aperture including canal; suture shallow, indistinct; siphonal canal moderately long, constricted, slightly curved to right, terminally oblique, barely indented, rostrum with very slight fasciole; anal sinus deep, Ushaped, at the termination of the second spiral cord constricted by a callus pad; interior of lip with about 7 fine spiral threads; lip preceded by a low, broadly convex varix.

Sculpture of narrow spiral cords, more or less uniformly strong, with sloping sides, 3 on spire whorls, increasing to 4 on penultimate whorl, sinus cord with spirally oblong gemmules, about 30 on penultimate whorl, other cords on last whorl may also show weak gemmules; last whorl with about 13 strong spiral cords with weaker intermediary threads.

Protoconch papilliform, domed, slightly less than 1.5 whorls, last 1/3 whorl with very weak arcuate opisthocline axial riblets.

Background colour pale brown with slightly darker subsutural region. Interspaces between gemmules of the sinus cord with brown streaks, third and 4 th spiral cords light golden brown coloured.

Remarks

Turridrupa chinoi sp. nov. is close to Turridrupa diffusa Powell, 1967 but is readily distinguished by the smaller and slenderer shell, the weaker spiral cords (especially the subsutural cord), the denser gemmules on the spiral cords, the different colouration, and the slightly shorter protoconch.

Etymology

Named in honour to Mitsuo Chino ( Japan) well known for his numerous contributions in conchology. Moreover, Mitsuo Chino called our attention to this undescribed Turridrupa species and provided the type material.

Figures

FIGURE 19. Turridrupa diffusa Powell, 1967:A–C. Holotype, 12.0 mm, Samoa, 12.0 mm, Auckland Institute; D–E. 15.1 mm. Philippines, Panglao, ca. 60 m, PS-454; F. 13.6 mm, Vanuatu, SANTO, Stn. DB33, MNHN-IM-2014-211; G. ESEM scan of protoconch off specimen depicted in D-E. Turridrupa chinoi sp. nov.: H–J. Holotype, 10.7 mm, Philippines, Bohol, Panglao, ca. 100 m, MNHN-IM-2000-37772; K. Paratype 2, 10.8 mm, Philippines, Bohol, 100 m, Chino-coll.; L. 10.1 mm, SANTO, Stn. DS102, MNHN-IM-2014-212; M-N. Paratype 1, ESEM voucher (N: protoconch), 10.7 mm, Philippines, Bohol, Panglao, ca. 30 m, PS-1074. Shells not to scale. Scale bar for G: N 500 µm.