Zoological Society. 50? 



Var. testa 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. lUustr. f. 31. Card, testa tenuiy sub' 

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

 albd,fiisco maculatd; costis numerosis, planulatis, 5 anticis cre^ 

 nulatis ; interstitiis angustis. 



Long. 0-50 ; lat. 0'40 ; alt. 0*45 poll. 



Hab. ad mare Siculum. 



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

 pressd, suhcequUaterali ; costis 27 1 angulatis, subcrenulatis ; epi- 

 derm'ide crassd, olivaceo-fuscd, ad umbones cetate erosd ; Hga- 

 mento elongate ; cardine dentibus centralibus obsoletisj lateribus 

 distantibus. 



Long. 1-55; lat. 0-90; alt. 1-40 poll. 



Hab. ad mare Arcticum. 



Differing from C. Groenlandicum, 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- 

 tundatdf ventricosd, subcequilaterali, tenui ; albido-Jlavicantej 

 fusco undatd; costis 16, planulatis, Iwvibus, 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 pauld hiante, pallide fulvd, 

 ad margines rosed, intHs 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- 

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

 nuiter sulcatd ; inter sulcos spinis numerosis acutis ornatd. 



Long. 1" ; lat. 0-70; alt. 0'95 poll. 



Hab. ad oras Australise (Swan River). 



An extremely delicate and beautifully wrought shell, and quite 

 distinct from others of the group to which it belongs. 



Cardium variegatum. Conch. Illustr. f. 57. Card, testd ovali, 

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

 costis 48, quarum anticis rotundatis, crenulatis ; posterioribus 



