Pecten asperrimus, Lam.Hist.6 pt.

1 174.
This beautiful species was originally found by MM.

Peron and Lesueur on the coast of Van Diemen's Land.
24.

Lima minuta (n.s.) Testa ovato-oblonga valde tumida clausa radiatim costata, costis transverse costato-striatis, auriculis minutis, margine crenato.
This shell, which was brought up by the deep sea sounding-lead, being only one-sixth of an inch long, and one-fourth high, is the smallest species of the genus.

It is white, ovate, oblong, turned and closed at the ends; the surface is deeply radiately ribbed; the ribs are concentrically rib-striated, which gives their sides a denticulated appearance; the edge is crenulated, and the umbones are acute, a small distance apart, and nearly in the centre of the hinge margin, which is straight.
25.