106 



Cahdium ringiculum. Conch. Illustr. f . 1 1 . Card, testd longitudi- 

 naliter ovali, tenui, utrinque hiante ; postice elongatd, sub- 

 aspersd ; costis anterioribus angustis, inconspicuis ; tribus cen- 

 tralibui latis, planulaiis ad marginem valde dentatis ; decern 

 postremis angustioribus, paulb elevatis, ad marginem dentatis. 



Var. testd pallide Jlavidd. 



Var. testd ad latus posticum rubro tinctd. 



Hab. ad insulam Ceylon. 



A pretty little species, differing from C. bullatum in the strongly 

 toothed posterior margin. 



Cardium Siculum, Conch. Illustr. f. 31. Card, testd tenui, sub- 

 quadratd, ventricosd, antice angustd, postice latd, subangulatd ; 

 albdffusco maculatd ; costis numerosis, planulatis, 5 anticis cre- 

 nulatis ; interstitiis angustis. 



Long. 0-50 ; lat. 0-40 ; alt. 045 poll. 



Hab. ad mare Siculum. 



Cardium Arcticum, Conch. Illustr. f. 26. Card, testd ovali com- 

 pressd, subcequilalerali ; costis 27, angulatis, subcrenulatis ; epi- 

 dermide crassd, olivaceo-fuscd, ad umbones cetate erosd ; liga- 

 mento elongate ; cardine dentibus ccntralibus obsoletis, lateribus 

 distantibus. 



Long. 1-55; lat. 090; alt. 1-40 poll. 



Hab. ad mare Arcticum. « 



Differing from C. Groenlandiciim, in having ribs, and from C. Ice- 

 landicum, in being less ventricose and in the ribs being angular. 



Cardium paucicostatum, Conch. Illustr. f. 20. Card, testd ro- 

 tundatd, ventricosd, subcequilaterali, tenui ; albido-Jlavicante, 

 fusco undatd ; costis 16, planulatis, Icevibus, distantibus, tubercu- 

 lis acutis in medio armatis ; interstitiis planulatis. 



Long. 1-30; alt. 1-30; lat. 1 poll. 



Hab. ad mare Adriaticum (Malta). 



This species differs from C. echinatum in being comparatively 

 smooth, and having very few ribs, with wide interstices. 



Cardium multispinosum. Conch. Illustr. f. 38, 38 a. Card, testd 

 rotundatd, ventricosd, tenui, postice paulo hiante, pallide J'ulvd, 

 ad margines rosed, intiis alba ; costis 33 Icevibus, utrinque angu- 

 latis ; spinis numerosis, acutis ; interstitiis granulatis, ad mar- 

 ginem elongatis ; margine dorsali tumidd. 

 Long. 2-10; lat. 1-70; alt. 2-20 poll. 



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

 In shape and general appearance, this beautiful shell resembles 

 C. Asiaticum, from which, however, it differs widely, in having 

 small spines on the ribs instead of the fringe. Found in sandy mud, 

 at 25 fathoms. 



Cardium exasperatum. Conch. Illustr. f. 37. Card, testd ventri-, 



