Fimbria fimbriata (Linnaeus, 1758)

(Fig. 42)

Venus fimbriata Linnaeus, 1758: 687 .

Fimbria fimbriata – Nicol 1950: 83, figs 1, 2, 4, 6, 7.

MATERIAL EXAMINED. — Koumac. 10 stn, 0-15 m, 29 v, 26 live.

Touho. 5 stn, 0-8 m, 8 v, 11 live.

Lifou. 10 stn, 0-45 m, 30 v, 14 live.

Chesterfield Islands. 14 stn, depth range 25- 69 m.

Other New Caledonia. LAGON, 21 stn, from intertidal zone to 48 m. Loyalty Islands. MUSORSTOM 6, stn DW 430, 20°21’S, 166°07’E, 30 m, 3 v. — Stn DW 435, 20°21’S, 166°08’E, 32 m, 1 v; Ouvéa lagoon, 5 sh.

DISTRIBUTION. — Central IWP: Andaman Islands to Marshall Islands, Fiji and Tonga (see Nicol 1950: fig. 9).

DESCRIPTION

As generic diagnosis. L to 106 mm, H to 89 mm, commarginal lamellae closely spaced, often sinuous and dividing. Radial ribs more prominent to anterior and posterior. Juvenile shells (Fig. 42C) are generally longer than high and have more prominent commarginal lamellae and posterior sulcus.