CARDIUM, 



Species 71. (Plate XV. Fig. 71. and Plate XYI. Fig. 79. 

 Mus. Cuming.) 



Cardiuji oblongum. Card, testa ovato-oblongd, ventricosd, 

 umbones versus subattenuatd, tenuiculd, radiatim sulcato- 

 striatd, area posticd lani ; fuscescente-albidd, epider- 

 mideflavido-fuscd indutd. 



The oblong Cockle. Shell ovately oblong, ventricose, 

 somewhat attenuated towards the umbones, rather thin, 

 radiated with grooved striae, posterior area smooth; 

 brownish-white, covered with a yellowish brown epi- 

 dermis. 



Linx.lus, Syst. Nat. (Gmelin's edit.), p. 3254. 



Hub. Coast of Devonshire, Britain (dredged from mud at 

 the depth n!' about twenty fathoms); Cuming. 

 Lamarck appears to have omitted all notice of this 



species. 



Species 72. (Mus. Cuming.) 



Caedium attenuatum. Card, testa elongato-ovatd, sub- 

 obliqud, umbones versus peeuliariter attenuatd, radiatim 

 subobsoletesulcato-striatd, aredposticd laevigata ; vitelto- 

 luted, rubro tincta et maculatd, maculis postremis satu- 

 ratioribus, umbonibus rosaeeis. 



The attenuated Cockle. Shell elongately ovate, some- 

 what oblique, peculiarly attenuated towards the um- 

 bones, rayed with rather obsolete amoved striae, pos- 

 terior area smooth ; yolk-yellow, stained and spotted 

 with red, posterior spots of a deeper red ; umbones pink. 



SOWEKBY. Pro. Zool. So.'., Is 10. 



Cardium la vigatum var., W ood, Gen. ( lonch. pi. 54. f. 2. 

 Hub. Ceylon, Zanzibar, Philippine Islands, &c. 



Perfectly distinct from all the species with which it has 

 been at different times confounded; — Cardia biradiatum, 

 Itsvigatum, anil serratum. 



Species 73. (.Mus. Cuming.) 



Caedium enode. Card, testa suboblique ovatd, radiatim 

 costatd, costis senis vel octonis et triginta, interstitiis 

 sublate mlcatis, postremis muricatis, medianis lavibus 

 postice crenulatis, antieis crenatis ; albidd, postice rosa- 

 cea, luteo pallide marmoratd. 



The smooth Cockle. Shell rather obliquely ovale, radi- 

 ately ribbed, ribs six or eigW and thirty in number, 

 interstices rather widelj grooved, extreme posterior 

 ribs prickly, middle ribs smooth, crenulated on the 

 posterior side, anterior ribs crenated ; whitish, tinged 



with pink on the posterior side, marbled with faint 



yellow. 

 Sowerby, Pro. Zool. Soc, 1S40. 

 Hub. Ceylon. 



This species mainly differs from the Cardium elongahim 



in the deep interlocking of the marginal extremities of the 

 ribs, and in the width and decided character of the inter- 

 stitial grooves. 



Species 74. (Mus. Cuming.) 

 Cardium lima. Card, testa ovatd, radiatim costatd, costis 

 quaternk </ triginta, rotundatis, brevimuricatis ; luted, 

 rosacea tincta et maculatd. 



The file Cockle. Shell ovate, radiately ribbed, ribs 

 four and thirty in number, rounded, armed with short 

 prickles; yellowish, stained and spotted with pink. 

 liEEVE, Fro. Zool. Soc, 1845. 



Hob. ? 



The short prickles which adorn this shell are not attached 

 to the side of the ribs, as in the Cardium murieatum, bul 

 to the middle throughout. The pink tinge of colour no- 

 ticed above is situated more particularly around the um- 

 bones. 



Species 75. (Mus. Cuming.) 

 Cardium vaeiegatum Curd, tntii xnbi/inii/riito-orfi/a, 



lbjirr-.s,;, pu.slier \nbil ili/n III III . rmlilltl '„' (Vs/ll/d, vnstis 



quinis senisve 1 I triginta, postremis plano-obsoletis, sub- 

 muricatis, medianis peeuliariter aeutangulis, antieis ro- 

 tundatis, suitilissimecrt natis ; alba, maculis vivide roseis 

 profuse variegatd. 



The variegated Cockle. Shell somewhat squarely ovate, 

 depressed, posterior slightly angulated, radiately rib- 

 bed, ribs eight and thirty in number, the extreme 

 posterior ribs flatly obsolete, slightly prickly, noddle 

 ribs peculiarly sharply angled, anterior ribs rounded, 

 very finebj crenated ; white, profusely variegated with 

 bright rose spots. 



SOWEEBY, Pro. Zool. Soc, L840. Conch, lllus. f. 57. 



Hub. Island ofTicao, Philippines (found on the reefs at 

 low water); Cuming. 

 There is a peculiaritj in the growth of this shell of which 

 we find a similar indication in the Curi/in,,/ iiui/nfu/u,,, ; — a 

 depressed square-like form, with the above described varia- 

 tion in the structure of tic ribs. 



January IS 15. 



