Typhinellus lamyi Garrigues & Merle 2014, n. sp.
Creators: name: Garrigues, Bernard
name: Merle, Didier
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Neogastropoda
Muricidae
Typhinellus
Typhinellus lamyi

description: Typhinellus lamyi n. sp.
(Figs 2 A-F; 11 A)
TYPE MATERIAL. — Holotype (MNHN-IM-2013-7776), DNA sequenced (GenBank no. KJ591665), KARUBENTHOS: stn GD35, Port Louis, 16°22.77’N, 61°34.19’W, at 66 m deep; one paratype (MNHN-IM-2013-20576), DNA sequenced (not tissue-clipped), KARUBENTHOS: stn GD55, Fajou Island, 16°22.48’N, 61°35.46’W, at 85 m deep; one paratype (coll. DL), East of Fajou Island, in 80-90 m deep; one paratype (coll. BG), East of Fajou Island, in 80-90 m deep.
TYPE LOCALITY. — Guadeloupe, Port Louis, 16°22.77’N, 61°34.19’W (stn GD35) at 66 m deep.
ETYMOLOGY. — Named in honour of Dominique Lamy.
DESCRIPTION OF THE HOLOTYPE
Protoconch of 1.75 whorls.Teleoconch, H 13.1 mm, D 5.9 mm. Low spire of fours whorls. Last whorl of 81% of the total length. Shoulder angulation sharp. Apical angle of 85°. Suture impressed crossed by a laminar extension connecting the shoulder spine to the preceding teleoconch whorl. Spiral sculpture: IP on the sutural ramp, P1 corresponding to anal tube, P2, P3, P4 and P5 on convex part of the whorl, P6, ADP, MP on siphonal canal. Primary cords slightly marked near the varices. P1 and P2 appearing since the first whorl. Primary cord spines on IP, P2, P3, P4 and P5. On the last whorl, broad varical flange up to the extremity of siphonal canal. Four ventrally sealed anal tubes (P1 spine), abapically and dorsally recurved, forming an angle of 30° with the axis of the shell. Last tube intact, others cut down. Axial sculpture: four varices since the first whorl. Aperture rounded. Columellar lip smooth, erected.No anal sulcus. Outer lip erected and smooth within. Siphonal canal winding, ventrally sealed, dorsally curved, up to 40.4% of the total length. Microsculpture of growing grooves. Shell chocolate, beige and white. Anal tubes (P1), siphonal canal and aperture whitish. Several dark blotches on the ventral part of the siphonal canal (3 blotches) and the outer lip (4 blotches). Operculum and radula unknown.
COMPARISON
Because of its moderately high shape and its developed cords spines, Typhinellus lamyi n. sp. should be compared with T. occlusus (Garrard, 1963) recorded from the Philippines and New Caledonia (80-200 m deep) and with T. labiatus (Cristofori & Jan, 1832). Specimens of T. occlusus can resemble T. lamyi n. sp. in bearing three dark blotches on the siphonal canal (Fig. 2I and Hardy 2014); however, T. occlusus (Fig. 2I) differs mainly by a smaller aperture, a longer siphonal canal (45.6 % of the total length) and a larger size up to 25-35 mm (instead 9.5-13 mm). On the biogeographical point of view, T. labiatus is closer to T. lamyi n. sp., both species living in the Atlantic Ocean. The shape of T. labiatus is rather similar to that of T. lamyi n. sp. and as for T. occlusus, several specimens of T. labiatus can resemble T. lamyi n. sp. in bearing three dark blotches on the siphonal canal (Hardy 2014). T. labiatus (Fig. 2G, H) differs by its spiral sculpture; it displays secondary cords spines s2 and s4 missing in T. lamyi n. sp. (Fig. 11A).
description: Published as part of Garrigues, Bernard & Merle, Didier, 2014, Nine new species of Muricidae Rafinesque, 1815 (Mollusca, Gastropoda) from the French Antilles, pp. 841-864 in Zoosystema 36 (4) on page 844, DOI: 10.5252/z2014n4a7, http://zenodo.org/record/5159677