430. 
431. 
432.° 
433. 
434. 
435. 
SHELLS OF SOUTH AMERICA. 51 
FIsSURELLA RADIOSA, Lesson, d’Orb. Voy. v.478. B.M. 
Patagonia; Falkland Islands. 
FisSURELLA MICROTREMA, Sow., d’Orb. Voy. v. 
473. B.M. 
Peru; Bolivia. 
FissuRELLA PERuviANA, Lamk., d Orb. Voy. v. 
474. B.M. 
Fissurella affinis, Gray. 
Fissurella subrotunda, Desh. 
Peru; Bolivia. 
FISSURELLA LIMBATA, Sow., d’Orb. Voy. v. 474. 3B.M. 
Chili. 
FIsSURELLA cosTATA, Lesson, d’Orb. Voy. v.474. B.M. 
Fissurella rudis, Desh. 
Fissurella Chilensis et latemarginata?, Sow. 
Chili. 
FIsSURELLA MAXIMA, Sow., d’Orb. Voy. v. 475. 
t. 64. f. 4-7. B.M. 
Chih. 
There is a curious specimen im the collection marked F. 
maxima, from Valparaiso, with the apical aperture absent, so 
that the vent must have opened over the back of the neck, as 
in Parmophorus and Emarginula. The front edge of the shell 
is broken, but there is no appearance of there having been 
any frontal notch as in Emargimula, or the truncation of Par- 
mophorus. 
436. 
437. 
438. 
FissuRELLA PataGonica, d’Orb. Voy. v. 476. 
t, 64. £ 13. B.M. 
Brazils. 
FissuRELLA FontTaINniAna, @’Orb. Voy. v. 477. 
t. 78. f. 12-14. B.M. 
Peru. 
FIsSURELLA BIRADIATA, Frembiy, d Orb. Voy. v. 
477. 
Valparaiso. 
D2 
