CARDIUM. 



Species 17. (Mus. Cuming.) 

 Cardium aculeatum {testa junior). For description of 

 this shell, which M. Deshayes has apparently taken 

 for the Cardium ciliare, see Plate VII. 



Species IS. (Mus. Cuming'.) 



Cardium paucicostatum. Card, testa rotundatd, tenui, 

 ventricosiuscnld, subrequilaterali, radiatim costatd, cos- 

 li.s panch, sedecbn vel septemdecim, plano-cowcexh, in 

 mi dio carinath, carina squamato-spinosd, interstitiis 

 concavh, lath, transversim crhpato-rugosh ; pallide 

 fuscescente alboque transversim undato-zonatd. 



The few-rtbbed Cockle. Shell rounded, thin, rather 

 ventricose, nearly equilateral, radiately ribbed, ribs 

 feu, sixteen or M'lenteen iii number, flatly convex, 

 keeled in the middle, keel armed with scale-like 

 interstices concave, wide, crisply wrinkled; 

 zoned transversely in a waved manner with white 

 and reddish brown. 



SoWERBY, Pro. Zool. SOC, 1840 ; Conch. Hills, f. 20. 

 Ciir.HiiM ciliare rur.fi? Lamarck. 

 Cardium ciliare (specimine anliquhsimd), Philippi, 

 Enum. Moll. vol. ii. p. 37. 

 Hub. Adriatic and oilier Seas of Southern Europe. 



I think Mr. Sowcrby has acted very judiciously in pro- 

 moting this shell to the rank of a new species. The Car- 

 dium ciliare, with which it lias been confounded, has cer- 

 tainly as small a number of ribs, and is moreover the only 

 other aculeated cockle with so few, but the spines of these 

 two species vary most importantly in their character. 'I lie 

 Cardium ciliare has a solid laterally compressed spine like 

 that of the young Cardium aculeatum, noticed above; the 

 Cardium •paucicostatum. has a folded scale-like spine, papil- 

 liform at the base, like that of the Curdium erinaceum. 



Specie,, l'.i. (Mus. Cuming.) 

 Cardium Mindanense. Card, lata suboblique cordi- 

 formi, lotigitudinaliter costatd, costis nonis et viginti, 

 squamiferh, squamh numerosh, conferth, postice forni- 

 catis, costarum hiterstitih sulprofundh ; albidd, fusco 

 hie illic nebulosd ; intus postice vivide purpurascente. 

 The Mindanao Cockle. Shell somewhat obliquely 

 heart-shaped, longitudinally ribbed, ribs nine and 

 twenty in number, squamiferous, scales numerous, 



Octobei 



close-set, arched over posteriorly, interstices between 

 the ribs rather deep; whitish, here and there clouded 

 with brown ; interior stained on the posterior side 

 with deep purple. 



Reeve, Pro. Zool. Soc, L844. 



Huh. Cagayan, Island of Mindanao, Philippines (found 

 among sand at low water); Cuming. 



The vaulted structure of the scales in this species is 

 ali. nit intermediate, in its character between that of the 



scales of the Cardia ronxari and ivirnrdia. 



Species 20. (Mus. Cuming.) 



CARDIUM MAGNUM. Card, /mid, a/a.rin/d, Mi que contain, 

 ventricosd, latere postico subangulato-depresso ; radia- 

 tim costatd, costh ad quinque el triginta, planulath, 

 confertiusculh, antich crenulath ; flavido-fuscescente, 

 maculU purpureo-fusch transversim serialiter pictd; 

 arm post tea deprcsxd omnino p'lrpurcn-fusrd. 



The great Cockle. Shell very large, obliquely cordate, 

 ventricose, posterior side somewhat angularly de- 

 pressed; radiately ribbed, ribs about five and thirty 

 in number, flattened, rather close-set, anterior ribs 

 crenulated; yellowish-brown, painted with transverse 

 rows of purple-brown spots, tic dcpivs-cd po-terior 

 area entirely purple-brown. 



Born, Test. Mus. Cass. Vind., pi. 3. f. 5. 



Cardia,,! uKirtilatUiil, Gmelin. 



Cardium veutricosum, Bruguiere, Lamarck. 

 Hub. Gulf of Mexico. 



The Cardium magnum is a large shell but does not at- 

 tain so lai lie < i a and elatum 

 It was described by Bruguiere ten years subsequent to the 

 publication of Bom's work, and very accuratelj figured in 

 the ' Encyclopedic Methodique ' pi. 299. I I 



Species '2 1. (Mus. Cuming.) 



odium latum. Card. Irstd /r<iusrrrse ovatd, depressi- 

 u.scu/a', ra/i/r iinequilal<-rali, latere antko brevhsimo, 

 paulo Manic; radial ii,i c,,\la/a, cas/h ad quadragenh, 



r aide scluxii 



radicaiti- , /■ I margines 



r, /',,:; ■ •'. jlarido- 



lincld. 



