Pygmaepterys karukerensis Garrigues & Merle 2014, n. sp.

Pygmaepterys karukerensis n. sp.

(Figs 5G, H; 12B)

TYPE MATERIAL. — Holotype (MNHN IM-2000-27730), KARUBENTHOS: stn GS13, 16°02.4’N, 61°45.6’W, at 50 m.

TYPE LOCALITY. — Pigeon Island, Guadeloupe, 16°02.4’N, 61°45.6’W (stn GS13), at 50 m deep.

ETYMOLOGY. — From Karukera, name of the Guadeloupe Island in the Caribbean langage.

DESCRIPTION OF HOLOTYPE

Protoconch 1.5 whorls. Teleoconch biconic, H 9 mm, D 5 mm. Spire high of five whorls. Last whorl rounded, 70% of the total length of teleoconch. Apical angle of 50°. Spiral sculpture consisting in marked primary cords. First whorl: appearance of P1, P2 and IP on the the sutural ramp; last whorl: sutural ramp; convex part of the whorl, IP; P1, P2, P3, P4 and P5 well developed; siphonal canal, P6 placed on the top, ADP and MP. Axial sculpture with eight lamellose varices since the first whorl. Aperture ovate. Columellar lip slightly erected anteriorly with three folds on the anterior part of the lip and two folds posteriorly. Outer lip erected and crenulated. Internal denticles: ID, D2, D3, D4 and D5 simple. Siphonal canal of 25% of the total length of teleoconch and dorsally recurved. Squamous microsculpture with growing lamellae. Shell creamy white with irregular dark intervarical band on the sutural band. Aperture creamy. Operculum and radula unknown.

COMPARISON

Pygmaepterys karukerensis n. sp. differs from P. germainae (Fig. 5 J-M) by a higher spire and a narrower shape. In addition, P. germainae exhibits a shoulder spine lacking in P. karukerensis n. sp. Compared with P. aliceae (Fig. 5I), P. karukerensis n. sp. bears well developed columellar folds and lacks D1. Pygmaepterys pointieri n. sp. differs also from P. karukerensis n. sp. by its shoulder spines (P1), by a well developed D1 and by lacking folds on the columellar lip.