Turridrupa albogemmata Stahlschmidt & Fraussen, 2011

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 : 13

Turridrupa albogemmata Stahlschmidt & Fraussen, 2011

( Figs. 3 G–I )

Turridrupa albogemmata Stahlschmidt & Fraussen 2011: 17 , figs. 1–5 ( holotype and paratype 1); Poppe 2017: plate 1589, figs. 3–4.

Type material

HOLOTYPE: Philippines, Bohol, Balicasag Island , 80–120 m, 21.8 mm ( MNHN-IM- 2000-23298; Figs. 3 G–I ).

PARATYPES: Philippines, Bohol, Pamilacan Island , 50–100 m (PS-399) — Philippines, Palawan, Balabac Island , 25–65 m (PS-379) .

Material examined

PHILIPPINES: Mindanao, Surigao, 80–120 m, 1 spm ( PS- 32)— Bohol, 1 spm (MNHN-IM-2014-743)— Palawan, off Puerto Princessa, 10–30 m, 2 spms (MNHN-IM-2014-742).

Distribution

So far only known from the central Philippines and Palawan, in depths between 10 and 120 m.

Description

Shell medium-sized for genus, up to 22.1 mm in height; narrowly fusiform with about 8 teleoconch whorls, with a tall spire, about twice the height of the aperture including siphonal canal; suture moderately deep; siphonal canal rather long, constricted, slightly curved to right, terminally truncate, barely indented, anal sinus deep, U-shaped, at the termination of the second spiral cord; parietal callus-pad well-developed; interior of lip with about 6 fine spiral threads; lip preceded by a well-developed, broadly convex varix.

Spire whorls with 4 spiral cords, much narrower than their intervals; subsutural cord narrow, smooth, low, followed by sinus cord with regular, laterally elliptical and low gemmules, about 15 on penultimate whorl, third cord elevated, strong and smooth, 4th cords smooth, situated directly on the suture, equal in width to subsutural cord; last whorl with a total of about 14 spiral cords, widely spaced, those on fasciole closely-set and fine; the 4 spirals abapical from the sinus start to develop gemmules on the last whorl; interstices with 0–5 very thin spiral threads.

Protoconch domed, eroded in all specimens, of about 2 whorls, the last part with axial riblets.

Colour light brown with cream and brown shadings, subsutural region beeing darker and the gemmules of the sinus spiral cord beeing creamy white; last whorl with diffuse cream coloured maculation, the base and siphonal canal are creamy white.

Remarks

Turridrupa albogemmata Stahlschmidt & Fraussen, 2011 is most similar to Turridrupa acutigemmata (E.A. Smith, 1877) , but differs by the broader shape, the shorter siphonal canal, the different spiral sculpture (more elevated second spiral cord), and the completely different shell colouration.

Figures

FIGURE 3. Turridrupa maestratii sp. nov.; A–C. Holotype, 15.9 mm, New Caledonia, LAGON, Stn. 1148, 220 m, MNHN- IM-2000-37773; D. Paratype 2, Sequenced specimen, 10.5 mm, New Caledonia, CONCALIS, Stn. DW3024, MNHN-IM- 2009-33617; E–F. Paratype 1, Radula and ESEM voucher (F: protoconch), 11.3 mm, New Caledonia, BATHUS 4, Stn. DW942, MNHN-IM-2000-37774. Turridrupa albogemmata Stahlschmidt & Fraussen, 2011: G–I. Holotype, 21.8 mm, Philippines, Balicasag Island, 80–120 m, MNHN-IM-2000-23298. A-E at the same scale. Scale bar for ESEM scan: 500 µm.