Verruca magna Gruvel, 1901

Young, Paulo S., 2002, Revision of the Verrucidae (Crustacea, Cirripedia) from the Atlantic Ocean studied by Abel Gruvel (Travailleur and Talisman scientific expeditions), Zoosystema 24 (4), pp. 771-797 : 794-795

Verruca magna Gruvel, 1901 [junior synonym of Metaverruca recta (Aurivillius, 1898) ]

( Fig. 22 )

Verruca magna Gruvel, 1901: 261 ; 1902: 109, pl. 5, figs 1, 2; 1905: 184, figs 204, 205. — Hoek 1907: 9. — Weisbord 1979: 98.

TYPE MATERIAL. — Holotype: Expédition du Talisman, Bay of Biscay, drag. 141, 45°59’N, 6°29’W, 1480 m, 1883, 1 spec. rc 10.4 mm ( MNHN Ci 74).

REMARKS

Verruca magna is simply a well-developed specimen of Metaverruca recta , and the specimen was damaged before or during collection. Its scutum has the second articular ridge broken and partially deformed; it has this ridge very wide and the third, upper ridge is lacking.Apart from the scutum, the single difference I could observe in this specimen is that the articular ridges of the rostro-carinal sutures are more pronounced, which is probably due to their large size. Therefore, I confirm the synonymy presented by Nilsson-Cantell (1929, 1938), Southward & Southward (1958), Buckeridge (1994), Foster & Buckeridge (1995a, b) and Young (1998a, b).

Figures

FIG. 22. — Verruca magna Gruvel, 1901, lectotype, rostro-carinal view. Scale bar: 3 mm.