Turridrupa punctolineata 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 : 51

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

( Figs. 18 K–N )

Type material

HOLOTYPE: Marshall Islands, Kwajalein Atoll, west reef, outer reef, in rubble, 10–14 m, (MNHN-IM-2000- 37771, Figs. 18 K–M ).

PARATYPE 1: type locality ( PS-1075 , Fig. 18 N ) .

Distribution

Presently only known from the Marshall Islands.

Description

Shell medium-sized for genus, up to 17.5 mm in height; clavi- to fusiform with about 8–9 teleoconch whorls; spire about 1.5 height of the aperture including siphonal canal; suture shallow, indistinct; siphonal canal moderately long, constricted, slightly curved to right, terminally oblique, barely indented; anal sinus deep, linguiform, at the termination of the second spiral cord constricted by a callus pad; interior of lip with about 6 very weak spiral threads; stromboid notch shallow, 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 slightly elongated gemmules, about 30 gemmules on penultimate whorl, other cords mayslightly undulating; last whorl with about 12 strong spiral cords with weak intermediary threads, no axial sculpture.

Protoconch papiliform, about 2 whorls, last whorl with rather strong, arcuate opisthocline axial riblets.

Background colour white and occasionally with diffuse light brown areas, interspaces of the gemmules on the sinus cord dark brown coloured.

Remarks

Turridrupa punctolineata sp. nov. is remotely similar to Turridrupa chinoi sp. nov. but is readily distinguished by the larger shell and the completely different colouration. The new species differs from Turridrupa diffusa Powell, 1967 by the smaller and more numerous gemmules on the sinus spiral cord and by the different colour pattern.

Figures

FIGURE 18. Turridrupa armillata (Reeve, 1845): A–B. Holotype, 18.3 mm, Philippines, NHMUK 1963776; C–E. 16.0 mm, Philippines, Talikud, 30 m, Chino-coll.; F. 13.9 mm, PANGLAO, Stn. S21; G-J. Sequenced specimen, ESEM voucher (J: protoconch), 17.3 mm, Papua New Guinea, KAVIENG 2014, Stn. KB36, MNHN IM-2013-53458. Turridrupa punctolineata sp. nov.: K–M. Holotype, 17.5 mm, Marshall Islands, Kwajalein, 15 m, MNHN-IM-2000-37771; N. Paratype 1, 17.4 mm, Marshall Islands, Kwajalein, 10–14 m, PS-1075. All shells at the same scale. Scale bar for shells 10 mm, for protoconch 500 µm.