478 
APPENDIX. 
[B. 
21. Spondylus radians ? Lam. Hist. vi. pt. i. 192. 
Icon. Chemn. Conch, vii. t. 45. f. 469. 470. Ency. Mcth. pi. 
191. f. 5. 
22. Pecten MAXIMUS ? Lam. Hist. vi. pt. i. 163. 
Ostrea maxima, Gmel. Syst. Nat. i. 3315. 
Icon. Chemn. Conch, vii. t. 60. f. 585. Ency. Mcth. pi. 209. 
f. 1. a, b. 
The shell before me is probably distinct from the above species, but 
is too much worn down to be separated from it ; in its present state 
it seems to ag-ree tolerably well with the species to which it has 
been referred. 
23. Pecten asperrimus, Lam. Hist, vi. pt. i. 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-ohlonga valde tumida clausa radiatim costata^ 
costis transverse costato-stnatis, auriculis minutisy mar- 
gine 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 denti- 
culated 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. Pinna dolabrata, Lam. Hist, vi. pt, i. 133. 
Pinna bicolor, Chemn. Conch. Cab. t, 90. f. 234. 
Icon, Chemn. viii, t. 90. f. 780? 
The shell, figured by Chemnitz, appears to be a variety of this spe- 
cies with the anterior end uncurved, which has most probably been 
caused by some injury on the anterior basal edge. 
The species is peculiar for its yellow pearly internal coat, and 
purplish rays. 
