DESCRIPTION OF THE HOLOTYPE Protoconch of 1.25 whorls. Teleoconch biconic, H 10.2 mm, D 5.7 mm. High spire of five whorls. Last whorl rounded, 73% of the total length of teleoconch. Apical angle of 55°. Spiral sculpture consisting in marked primary cords. Appearance of P1 and P2 since the third whorl. IP on the sutural ramp. Convex part of the whorl: P1, P2, P4 well developed, P5 smaller, P3 atrophied. Siphonal canal: P6, ADP and MP. On four first whorls: six protovarices. On fourth whorl: gradual appearance of three varices and three intervarical ribs (intercalated between two varices). On last whorl: four varices and three intervarical ribs (intercalated between two varices). Aperture ovate. Columellar lip smooth and slightly erected anteriorly. Outer lip crenulated and flared. Internal denticles Dl, D2, D3> D4 and D5 simple. Siphonal canal open, dorsally recurved and up to 23% of total length of teleoconch. Microsculpture: thin spiral threads on the whole surface of the shell. Intritacalx cancellate. Shell brown under a creamy intritacalx. Aperture brown with darker denticles. Operculum and radula unknown. TYPE LOCALITY. — Guadeloupe, Fajou Island, 16°22.4'N, 61°35.6,W (stn GN01), at 80 m deep.
ETYMOLOGY. — Named in honour of Laurent Pruvost.