Altiverruca erecta (Gruvel, 1900)

Young, Paulo S., 2001, Deep-sea Cirripedia Thoracica (Crustacea) from the northeastern Atlantic collected by French expeditions, Zoosystema 23 (4), pp. 705-756 : 741-742

Altiverruca erecta (Gruvel, 1900)

( Fig. 27 )

Verruca erecta Gruvel, 1900b: 243 ; 1902d: 93, pl. 5, figs 7, 8.

Altiverruca erecta – Young 1998a: 77; 1998c: 111, figs 3, 4 (with synonymy).

MATERIALEXAMINED. — SEAMOUNT 2, stn DW 278, 33°57.77’N, 28°22.40’W, 890 m to 33°57.47’N, 28°22.48’W, 925 m, 1 specimen, rc 2.9 mm (MNRJ 13920).

MARVEL, stn PL 1196, Mid-Atlantic Ridge, Rainbow vent site, 36°13.78’N, 33°54.14’W, 2295 m, 2 specimens, rc 2.8 mm (MNHN Ci 2882).

REMARKS

Altiverruca erecta was redescribed and discussed by Young (1998c: 111). The specimens collected during the present expeditions are similar to that figured by Gruvel (1902d: pl. 5, figs 7, 8) and indicate the growth ridges are more prominent on the carina ( Fig. 27 ). It was collected from the Azores at 3175 m and from the Mid-Atlantic Ridge between 3947 and 3375 m ( Gruvel 1902d: 93; Young 1998c: 111). These new records agree with the previous geographic distribution but increase its depth range to 890-3947 m.

Figures

FIG. 27. — Altiverruca erecta (Gruvel, 1900), SEAMOUNT 2, stn DW 278; A, top view; B, fixed-tergum and fixed-scutum view. Scale bar: 1 mm.