Glyptelasma hamatum ( Calman, 1919 )

Young, Paulo S., 2001, Deep-sea Cirripedia Thoracica (Crustacea) from the northeastern Atlantic collected by French expeditions, Zoosystema 23 (4), pp. 705-756 : 720

Glyptelasma hamatum ( Calman, 1919) ( Figs 10A, B ; 11 )

Megalasma (Glyptelasma) hamatum Calman, 1919: 370 , figs 5-7. — Nilsson-Cantell 1927: 770, fig. 12;

1928: 23, fig. 11; 1931: 10; 1934: 49; 1955: 219. — Weisbord 1979: 48, pl. 5, figs 1, 2, pl. 14, fig. 3. — Zevina 1982: 93, fig. 83. — Jones et al. 1990: 9.

Megalasma hamatum – Hutchins 1952: 194. — Zevina 1969: 67; 1976: 1155.

Megalasma carinatum – Foster 1978: 26, pl. 3b, fig. 12 [non Megalasma carinatum ( Hoek, 1883) ].

MATERIALEXAMINED. — SEAMOUNT 2, stn DW 216, 31°53.72’N, 28°02.97’W, 270 m to 31°53.92’N, 28°02.94’W, 270 m, 6 specimens, tl (cl) 3.7 (2.8) to 8.4 (7.1) mm (MNHN Ci 2835, MNRJ 13891). — Stn DW 222, 32°20.81’N, 28°15.66’W, 1150 m to 32°21.02’N, 28°15.72’W, 1150 m, 56 specimens, tl (cl) few to 6.6 (5.3) mm (MNHN Ci 2836, MNRJ 13892). — Stn DW 249, 33°12.41’N, 29°14.83’W, 1700 m to 33°12.36’N, 29°15.19’W, 1800 m, 1 specimen, tl (cl) 11.6 (10.9) mm (MNHN Ci 2837). — Stn DW 250, 33°12.65’N, 29°17.25’W, 1500 m to 33°12.66’N, 29°17.66’W, 1450 m, 7 specimens, tl (cl) 1.6 (1.5) to 7.5 (6.9) mm (MNHN Ci 2838, MNRJ 13893). — Stn TS 267, 34°22.50’N, 30°22.50’W, 2225 m, 8 specimens, tl (cl) 6.6 (5.5) to 20.1 (17.8) mm (MNHN Ci 2839, MNRJ 13894). — Stn DW 276, 34°02.06’N, 28°18.96’W, 1520 m to 34°01.85’N, 28°19.15’W, 1460 m, 5 specimens, tl (cl) 3.4 (3.0) to 10.6 (9.2) mm (MNHN Ci 2840).

DIVA II, stn PL 09, 37°16.32’N, 32°16.51’W, Tour Eiffel, 1685 m, 9 specimens, tl (cl) 6.1 (4.8) to 23.5 (18.6) mm (MNHN Ci 2841, MNRJ 13895).

MARVEL, stn PL 1199, Famous, 36°32.26’N, 33°27.40’W, 2364 m,> 40 specimens, tl (cl) few to 20.0 (15.5) mm (MNHN Ci 2884).

REMARKS

See discussion under G. carinatum below.

Figures

FIG. 10. — A, B, Glyptelasma hamatum (Calman, 1919), SEAMOUNT 2, stn DW 267; A, left lateral view; B, dorsal filamentary appendage on prosoma; C, D, Glyptelasma carinatum (Hoek, 1883), SEAMOUNT 2, stn DW 267; C, left lateral view; D, dorsal filamentary appendages on prosoma. Scale bars: A, C, 5 mm; B, D, 2 mm.

FIG. 11. — Geographic distribution of Glyptelasma hamatum (Calman, 1919).