107 



cosd, rotundato-subquadratd, alba, ad margines roseO'tinctd ; te- 

 nuiter sulcata; inter sulcos spinis numerosis acittis ornatd. 



Long. 1- ; lat. 070; alt. 0-95 poll. 



Hab. ad oras Australise (Swan River). 



An extremely delicate and beautifully Avrought shell, and quite 

 distinct from others of the group to which it belongs. 



Cardium varikgatum. Conch. lUustr. f. 57. Card, testd ovali, 

 subventricosd, rosed, aurantiaco, rubro-fusco-albo-que maculatd ; 

 costis 48, quarum anticis rotundatis, crenulatis ; posterioribus 

 valde angulatis, Icevibus ; postremis subplanulatis, tuberculis 

 obliquis ornatis. 



Long. 1-70; alt. 1-80; lat. 1-20 poll. 



Hab. ad insulam Leyte, Philippinarum. H. Cuming legit. 



The ribs are much more numerous and close than in C. mvrica- 

 tum, and C. Radula is described as having the ribs angular on both 

 sides, which is not the case with this species. 



Cardium Unicolor, Conch. lUustr. f. 29. 42. Card, testd ovali 

 ventricosd, postice subelongatd, paulb emarginatd, albd, ptirpureo 

 obscure maculatd, epidermide fused tenui indutd ; costis numero- 

 sis, anticis, mediis, et posterioribus rotundatis, minute crenulatis; 

 extremis planulatis. 



Long. 1-50; lat. MO; alt. 1-70 poll. 



Hab. ad ins. Ticao. H. Cuming legit. 



Found in sandy mud, at five fathoms. A slightly mottled variety 

 is brought from the Brazils. 



Cardium impolitum, Conch. Illustr. f. 6. 66. Card, testd crassd, 

 cuneiformi, snbcequilaterali ad marginem dorsalem angustiore, ad 

 ventralem rotundatd ; albd,fusco obscure maculatd, postice pur- 

 pur eo-fasciatd ; costis 35 impolitis, subcrenulatis ; epidermide 

 fused. 



Long. 1-50; lat. MO; alt. 1-90 poll. 



Hab. ad mare Sinense. 



Remarkable for its wedge-like, nearly equilateral shape. 



Cardium oxygonum, Conch. Illustr. f. 9. Card, testd ovali, sub- 

 ventricosd, ad umbones angustd ; albd, ruhro fuscoque maculatd, 

 intus albd; costis 35, quarum 18 anterioribus validis, acutangu- 

 latis, ad latera antica atque ad angulos crenulatis ; deinde 9 

 posterioribus acutangulatis ad angulos crenatis, ad latera Icevi- 

 bus ; extremis angustis, Icevibus, tuberculis obliquis ornatis. 

 Long. 1-20; lat. 090; alt. 1-40 poll. 

 Hab. ad mare Sinense. 



This species resembles C. maculosum of Wood in form, but in 

 sculpture it more nearly approaches C. angulatum of Lamarck, from 

 which, however, it is distinguished by being narrower towards the 

 umbones, less ventricose, and having the ribs more distinctly angu- 

 lated. 



