Litoscalpellum walleni Newman & Ross, 1971 Figure 19

Litoscalpellum walleni Newman & Ross, 1971: 116, pl. X E text-fig. 60.

Material examined.

- Tanimbar Island: 1 specimen, MNHN-IU-2019-4927, Stn. CP 91, 08°44'S, 131°05'E, 884-891 m depth, 5 November 1991.

Diagnosis.

Capitulum with 14 plates; inframedian latus triangular, very small, narrow; carina with flat roof; rostrum minute; scutum lacking prominent apicolateral arm; maxilla subtriangular, slightly trilobate; maxilulle slightly notched with teeth diverging laterally from cutting edge; caudal appendage multi-articulate, slightly shorter than first segment of cirrus VI.

Description.

Capitulum elongate, higher than broad; plates ornamented with growth lines. Carina bowed, roof slightly convex, bounded by angles. Tergum triangular; scutum with lateral margin concave; upper latus roughly quadrangular; carinal latus higher than wide; rostral latus quadrangular, slightly broader than high; rostrum minute, narrow, essentially rectangular. Cirrus I unequal, anterior ramus shorter, broader than posterior ramus; both rami densely covered with long setae. Mandible with four teeth including inferior angle, inferior angle serrate along basal margin with four spines. Measurements of specimen: height of capitulum 14.56 mm, width 8.09 mm, thickness 2.50 mm; length of peduncle 7.52 mm, width 3.89 mm.

Distribution.

Southeast Pacific Ocean (Newman and Ross 1971). In this study, Litoscalpellum walleni was found at Tanimbar Island, Indonesia.

Type locality.

northeast of Peter I Island, southeast Pacific Ocean; 65°50'S, 88°56'W; depth: 4,502 m (Newman and Ross 1971).