APPENDIX. 349 



1851, Proc. Bost. 3, 4, Krauss' ' Sud-Afrikanischen Conchylien,' 

 J. Philad. n. s. 1, Dunker's Guinea Shells, &c. 



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. equilatera, p. 81, t. 14, f. 33 ... 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. 83, t 9, 

 f. 35 ... D. dentifera, p. 84, 1. 14, f. 20 ... D. carinata, p. 84, 1. 14, f. 28 

 ... D. punctato-striata, p. 84. t. 14, f. 24 ... D. semisulcata, p. 85, 

 t. 14, f. 25 ... D. variabilis, p. 85, t. 14, f. 31 ... D. fossor, p. 85, 

 t. 9, f. 36 ... D. Californica, p. 85, t. 14, f. 30 ... D. pidchella, p. 86, 

 t. 14, f. 19 ... D. truncuVus (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 veutricose, 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. -§-... f. Peru? 

 Allied to D. obesula of Reeve, but distinct from any in his mono- 

 graph. 



Donax Veneriformis (t. 14, f. 27), Hanley, list of plates. 



Donax ovalina, 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 inserted 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 Capsa. 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. 



