APPENDIX. 349 
1851, Proc. Bost. 3, 4, Krauss’ ‘Sud-Afrikanischen Conchylien,’ 
J. Philad. n. s. 1, Dunker’s Guinea Shells, &e. 
Donax compressa, p. 79, t. 14, f. 22... D. deltoides, p. 80, t. 14, 
f. 23 ..., D. columbella, p. 80, t. 13, f. 7... D. Australis, p. 80, t. 14, 
f. 29 ... D. equilatéra, p. 81, t. 14, f. 83... D.“striata, p. 82, t. 14, 
f. 32... L. Cayennensis, p. 82, t. 13, f. 8<.. D. elongata, p. 82, t. 13; 
f. 47 ... D. Cardioides, p. 82, t. 13, f. 9... D. fabagella, p. 88, t. 9, 
f.35 ... D. dentifera, p. 84, t. 14, f. 20... D. carinata, p. 84, t. 14, f. 28 
... D. punctato-striata, p. 84, t. 14, f. 24... D. semisuleata, p. 85, 
teds f 2b) ..2 Di variabiliss p. 8b5° t. 14, file in Docfossor,.. py 8d; 
t. 9, f. 86 ... D. Californica, p. 85, t. 14, f. 30... D. pulchella, p. 86, 
t. 14, f. 19... D. trunculus (p. 87, as Capsa t.), t. 11, f. 38. 
Donax RADIATA, VAR. (t. 14, f. 21), Valenc. in Humboldt and 
Bonpl. Zool. Wedge-shaped, very inequilateral, broad and obliquely 
subtruncated in front, peculiarly attenuated behind, strong, more or 
less ventricose, yellowish, sometimes rayed with liver-colour; sculp- 
tured throughout (except immediately adjacent to the dorsal edges, 
where in front it is densely waved with most minute subconcentric 
flexuous scratches, and behind is wholly smooth) with densely packed 
scarcely raised radiating riblets, the narrow sulci between which are 
very finely cancellated ; extremities rounded: umbonal ridge rounded ; 
inside stained with dark purple; ventral edge coarsely denticulated, 
subarcuated in the middle; lateral teeth strong. 4...4. Peru? 
Allied to D. obesula of Reeve, but distinct from any in his mono- 
graph. 
Donax VEN»ERIFORMIS (t. 14, f. 27), Hanley, list of plates. 
Donax ovauina, Reeve, I. Don. f. 17 (as of Desh. Z. P. 1854). 
Obovate, subinequilateral, thickish, a little compressed, ochraceous- 
yellow, with (for the most part) two abbreviated purplish rays (one 
subcentral, one anterior), wrinkled with somewhat coarse concentric 
lines of growth, otherwise smooth ; ventral edge entire, much arcuated : 
hinder side rather the longer, attenuated and symmetrically rounded 
at the extremity; no umbonal ridge or flexure; beaks acute; the 
ligamental and hinder dorsal margins meeting at an obtuse angle: 
inside whitish; a bifid primary tooth mserted between two (one very 
fragile) in the opposite valve. 1. Pacific. I named this shell on the 
authority of the presumed type in the Museum at Paris, but it does 
not adequately suit the description. Lamarck’s shell was probably 
allied to (if not) the Venus semicancellata. 
On Carsa. C. complanata (p. 86), ringens (p. 86), and trunculus 
(p. 87) should rather be regarded as aberrant Donaces than as members 
of this genus. 
Capsa Brasiliensis, p. 86, t. 13, f. 52 ... C. altior, p. 86, t. 14, 
f. 34. 
