Verum carinatum (Hoek, 1883)

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

Verum carinatum (Hoek, 1883) Figure 28

Scalpellum carinatum Hoek, 1883: 76, pl. III, figs 7, 8. - Pilsbry 1907a: 53, fig. 18. - Gruvel 1920: 20. - Barnard 1925: 3. - Broch 1953: 7. - Weisbord 1977: 243-244, pl. 27, figs 3, 4.

Scalpellum imperfectum Pilsbry, 1907a: 75, fig. 30, pl. IV, figs 15-18. - Annandale 1913: 233. - Barnard 1924: 47. - MacDonald 1929: 537. - Broch 1953: 9. - Stubbings 1961: 11, text-fig. 2. - 1967: 234.

Meroscalpellum imperfectum . - Newman & Ross, 1971: 119, text-fig. 62.

Verum carinatum . - Zevina, 1981: 225-226, fig. 163. - Shalaeva and Boxshall 2014: 53, fig. 37.

Material examined.

- Kei Islands: 1 specimen, MNHN-IU-2019-4920, Stn. DW 18, 05°18'S, 133°01'E, 205-212 m depth, 24 October 1991.

Diagnosis.

Capitulum with 14 plates separated by chitinous interspaces, surface smooth; carina bowed, angularly bent, with flat roof; upper latus irregular pentagonal; inframedian latus large, wine-glass-shaped.

Description.

Capitulum elongate, plates covered by thin, chitinous membrane. Scutum elongated, apex pointed, occludent margin very convex. Tergum flat, triangular, apex very recurved, occludent margin very arched. Carina with umbo at top of flat roof. Upper latus flat, irregular pentagonal; rostrum narrow, elongated; rostral lateral convex with rostral margin short; inframedian latus wine-glass-shaped; carinal latus flat, large. Peduncle short, calcareous scales distinct. Cirrus I unequal, anterior ramus broader than posterior ramus; cirri II to VI long, rami equal; cirrus VI with caudal appendages. Maxillule not notched, two large spines on upper side, cutting edge almost straight; mandible with three large teeth excluding inferior angle. Measurements of specimen: height of capitulum 9.14 mm, width 4.53 mm, thickness 1.74 mm; length of peduncle 2.54 mm and width 2.20 mm.

Distribution.

Atlantic, excluding polar areas; Pacific, Southeast. Known depth range 600 to 2,400 m ( Shalaeva and Boxshall 2014). In this study, Verum carinatum was found at Kei Islands, Indonesia.

Type locality.

Station 135, near the Island of Tristan da Cunha; depth: 1,800 m; bottom: rock, shells ( Hoek 1883).

Figures

Figure 28. Verum carinatum (Hoek, 1883) (MNHN-IU- 2019 - 4920). 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).