Litoscalpellum walleni Newman & Ross, 1971

Pitriana, Pipit, Jones, Diana S., Corbari, Laure & Rintelen, Kristina von, 2020, New insights gained from museum collections: Deep-sea barnacles (Crustacea, Cirripedia, Thoracica) in the Museum National d'Histoire Naturelle, Paris, collected during the Karubar expedition in 1991, Zoosystematics and Evolution 96 (2), pp. 649-698 : 649

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).

Figures

Figure 19. Litoscalpellum walleni Newman & Ross, 1971 (MNHN-UI- 2019 - 4927). a. left lateral view showing the capitulum and peduncle; b. right lateral view showing the capitulum and peduncle; c. rostral view showing the capitulum and peduncle; d. carinal view. Scale bar: 4 mm (a-d).