Basiliola arnaudi Cooper, 1981

Bitner, Maria Aleksandra & Logan, Alan, 2016, Recent Brachiopoda from the Mozambique-Madagascar area, western Indian Ocean, Zoosystema 38 (1), pp. 5-41 : 9

Basiliola arnaudi Cooper, 1981

( Fig. 3 ; Table 2)

Basiliola arnaudi Cooper, 1981a: 16 , pl. 3, figs 1-14. — Zezina 1985: 115; 1987: 555; 1994: 44; 2010: 1179.

MATERIAL EXAMINED. — North-West Madagascar. MIRIKY, stn DW 3212, 1 bivalved specimen. — Stn DW 3216, 1 bivalved specimen.

South Madagascar. ATIMO VATAE, stn DW 3552, 1 ventral valve. — Stn DW 3555, 3 ventral valves, 1 dorsal valve.

DEPTH RANGE. — 296- 369 m.

MEASUREMENTS. — See Table 2.

REMARKS

This species was first described by Cooper (1981a) from Samper Bank, South-East of Madagascar, for “small nearly round Basiliola ” which Cooper carefully distinguished from previously-described forms of the genus, all from the Pacific Ocean ( Logan 2007; Bitner 2008, 2009). The distinctive corrugated teeth and sockets, subfalciform crura, general shape, overall dimensions and depth range of our specimens are in accord with Cooper’s types of B. arnaudi from Samper Bank.

Figures

FIG. 3. — Basiliola arnaudi Cooper, 1981, North-West Madagascar, between Nosy Be and Leven Bank, MIRIKY: A-C, dorsal, lateral and anterior views of complete specimen (IB-2013-32), stn DW 3212, 367-369 m; D-I, complete specimen (IB-2013-33), stn DW 3216, 296-350 m; D-F, dorsal, lateral and anterior views; G-I, SEM micrographs of posterior part of dorsal valve interior. Scale bars: A-F, 5 mm; G, H, 2 mm; I, 1 mm.