Catherinum rossi (Rao & Newman, 1972)

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

Catherinum rossi (Rao & Newman, 1972) Figure 22

Arcoscalpellum rossi Lakshmana Rao & Newman, 1972: 82, fig. 7.

Catherinum rossi . - Zevina, 1978b: 1348. - Liu and Ren 1985: 203, fig. 12, pl. 2, figs 11-14. - 2007: 250, fig. 108. - Chan et al. 2009b: 113, figs 92-94.

Material examined.

- Tanimbar Island: 1 specimen, MNHN-IU-2019-4933, Stn. DW 02, 05°47'S, 132°13'E, 209-240 m depth, 22 October 1991.

Diagnosis.

Capitulum smooth, elongate, 14 fully calcified plates; inframedia latus rectangular, not constricted; rostrum large, ovo-triangular; caudal appendages short.

Description.

Capitulum long, narrow, sparsely covered with hairs, plates separated by narrow, chitinous interspaces, marked with growth lines. Occludent margin strongly convex; carinal margin irregularly straight; apex slightly retroverted towards carinal side. Carina long, simply bowed; roof flat; parietes well developed towards distal half of plate. Tergum triangular, occludent margin short, convex, scutal and basal margins almost straight, carinal margin concave. Scutum with umbo apical, overlapping occludent margin of tergum. Upper latus triangular; carinal latus twice as long as broad; inframedian latus rectangular; rostral latus nearly rectangular in outline; rostrum large, elongate triangular, broad above, pointed below. Cirrus I unequal, anterior ramus oval, posterior ramus more slender; cirrus VI with caudal appendages. Maxillule not notched stout spine along the cutting edge; mandible with three teeth excluding inferior angle. Measurements of specimen: height of capitulum 9.67 mm, width 5.52 mm, thickness 2.58 mm; length of peduncle 2.79 mm, width 2.29 mm.

Distribution.

East China Sea, Pacific Ocean, Taiwan ( Chan et al. 2009b). In this study, Catherinum rossi was found at Tanimbar Island, Indonesia.

Type locality.

Stn. 3, Hess Guyot (17°53.2'N, 174°24.8'W), 1,692-1,735 m depth (Sigsbee beam trawl); Stn. 1, Allison Guyot (18°31.0'N, 179°36.0'W), 1,413-1,645 m depth (otter trawl) (Rao and Newman 1972).

Figures

Figure 22. Catherinum rossi (Rao & Newman, 1972) (MNHN-IU- 2019 - 4933). 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: 3 mm (a-d).