CAEDIUM.— Plate I. 



The flesh-tinted Cockle. Shell gibbously globose, 

 longitudinally ribbed, ribs about four and twenty in 

 number, round, smooth, obsoletely short-spined in the 

 middle towards the margins, interstices narrow, ra- 

 ther deep, transversely striated; pale flesh colour, 

 ornamented here and there with transverse rose-co- 

 loured rays. 

 Reeve, Pro. Zool. Soc, 1844. 



Hub. Bay of Manila (found in sandy mud at the depth of 

 six fathoms); Cuming. 

 A warm flesh-tinted shell, of which .Mr. Cuming col- 

 lected a few odd valves in the above-mentioned locality, 

 and has lately received several perfect pans. 



Species 3. (Mus. Cuming.) 



Cardium Sinense. Card, testa svhdepresso-orbiculari, 

 postice leoiter rostratd, omnino, antice preecipue, miiui- 

 tissime granulatd .• radiatim costatd, costis quatuor et 

 viginti, subcompressis, posticis angustioribus ; alhido- 

 J'uk'd ; marginibus fortissime crenatis. 



The Chinese Cockle. Shell somewhat depressly or- 

 bicular, posteriorly slightly beaked, everywhere mi- 

 nutely granulated, especially on the anterior side ; 

 radiately ribbed, ribs four and twenty in number, a 

 little compressed, posterior narrower ; ftdvous white, 

 margins very strongly crenated. 



Sowerby, Pro. Zool. Soc, 1840. Conch. Illus. f. 35. 



Huh. China and Java. 



The ribs of this species are peculiarly narrowed along 



the summit; and the granulated surface of the shell is of 



an extremely curious character. 



Species 4. (Mus. Cuming.) 



Cardium pseudo-lima. Mitr. testa subcordatd, ventri- 

 eosd, radiatim sulcata, sulcis ad duodequadragenis, 

 /iris intermediis planiusculis, interdum omnibus, inter- 

 dum lateralibus who,,, tuberculis minimis serialibus, 

 aspero-squamatis, armatk ; roseo-incarnatd, radii* ro- 

 il ix transversis ornatd, tuberculis albis. 



The file-like Cockle. Shell somewhat heart-shaped, 

 ventricose, radiate!} grooved, grooves about thirty- 

 eight in number, intermediate ridges rather flat, some- 

 times the whole, sometimes the Lateral ridges only, 

 armed with rows of very minute sharp-scaled tuber- 

 cles ; pink flesh-colour, ornamented with pink trans- 

 verse rays, tubercles white. 



Variety /3. 

 Testa omnino nivea. 



Shell entirely snowy white. 

 Lamarck, Anim. sans vert. vol. vi. p. 396. 

 Hah. Zanzibar, east coast of Africa (found in deep water). 

 Mr. Cuming possesses the variety \i of this well known 

 species, of a pure snowy white, in fine fresh condition. 



Species 5. (Mus. Cuming.) 



Cardicm Belcheri. Card, testa gibboso-glohosd, longi- 

 tudinaliter suboblique costatd, costis ad quinque et eice- 

 nis, squamis compressis,plano-mucronatis, antice reflexo- 

 inclinatis, peculiariter armatis ; flavicante-incarnatd, 

 lateraliter <■/ basaliter roseo vivide tinctd. 



Belcher's Cockle. Shell gibbously globose, longitu- 

 dinally rather obliquely ribbed, ribs about five and 

 twenty in number, peculiarly armed with compressed 

 flatly pointed scales, bent over in the anterior di- 

 rection ; yellowish flesh-colour, brightly stained at 

 the sides and aroimd the base with rose-pink. 



Broderip and Sowerby, Zoological Journal, vol. iv. 

 p. 330. pi. 9. f. 3. 



Hah. ( alifornia and Panama ; Belcher. 



No one can fail to recognise this remarkable -peeies by t he 



erect flattened festooned scales which ornament the ribs. 



Species 6. (Mus. Cumin":.) 



Cardium ringens. Card, testa rotundatd, interdum de- 

 pressiusculd, latere postico paululum Mante; radiatim 

 costatd, costis ad «-./• et vicenis, plano-convexis, muticis, 

 interstitiis posticis prope margines peculiariter incisis; 

 flavescente-albd, roseo partim timid. 



The grinning Cockle. Shell rounded, sometimes ra- 

 ther depressed, a little gaping at the posterior side ; 

 radiately ribbed, ribs about six and twenty in num- 

 ber, flatly convex, smooth, posterior interstices pecu- 

 liarly cut open near the margins ; yellowish-white, 

 partially stained with pink. 



Chemnitz, Conch. Cab. vol. vi. p. 170. pi- 10. f. 170. 



Hab. Mouth of the Gambia, Africa (found in sandy mud). 

 This species is singularly characterized by the curious 



manner in which the interstices between the ends of the 



posterior ribs remain open. 



Species 7. (Mus. Cuming.) 

 Cardium multipunctatum. Mitr. testa oblongo-ovald, 

 obliqud, depressiusculd, tenui, Itsvigatd, politd, radiatim 



eiiiifrrlissinii' impresso-striatd ; rufescente-fulvd, pos- 

 tice rubra oivide tinctd, punctis ruhris undique picta . 

 intusjtamdo-rufescente. 

 The MAKY-DOTTED Cockle. Shell oblong-ovate, oblique, 

 rather depressed, thin, smooth, polished, engraved 

 with very close radiating impressed striie ; reddish 

 fulvous, stained with bright red on the posterior side, 

 painted all over with red dots, interior yellowish red. 

 SowKiiin, Pro. Zool. Soc, 1833. 

 Ilah. China and the Philippine Islands. 



The Cardium miillipiiiietaliiui which Mr. Sowerby de- 

 scribed in is:).'! as being a shell of great rarity, has now 

 become comparatively abundant. 



