CARDIUM, 



>pee 



35. (Kg. Enc. meth. ] 

 Card, testa subc, 

 '""• angustis, pe 



298. f. 1.) 



lata, radiatim cos- 

 compresso- 



L ARDIVM CILIARE. 



fata, costis sedecim, angustis, pecul 



ciliatis. 

 The ciliated Cockle. Shell somewhat cordate, radiately 



ribbed, ribs sixteen in number, narrow, peculiarly 



compressly ciliated. 

 l.iNN.i'.is, Syst. Nat. (13th. edit.), p. L122. 



Chemnitz, Conch. Cab. vol. vi.p.l78,pl.l7,f.l71,172. 



flai. ? 



1 publish tins species upon the testimony of the figures 

 above referred to, as being quite distinct from the young 

 of the Cardium aculeatum represented in Plate 1\ . which 

 lias twenty-three ribs, whilst the Cnri/ii*,,/ ci/mrc, like the 

 Cardium paucicostatum, has only sixteen. 



Specie, 36, (Mils. SallL) 



''ardivm oviputamen. Card, testa oblique ovatd, tenui, 

 ventricosd, radiatim tenuissime striata; nived, opaed, 

 strigis lineisve rosaceo-fuscescentibus exilibus undatis 

 concentric} nebulosd, epidermide pallida margines ver- 

 sus indutd; marginibus intus subtiliter crenulatis, 



fHE EGG-SHELL CocKLE. Shell obliquely o\ate, thin, 



ventricose, radiateh very finely striated; opaque 

 snowy white, concentrically clouded with faint waved 

 pinkish-brown spots or lines, covered with a pale , pi- 

 dermis towards the margins; margins finely crenu- 

 lated within. 

 Reeve, Pro. Zool. Soc. 1844. 



Hnb. ? 



The general appearance of this and the following species 

 is very like that of the Cardium serratum, both, however. 

 are of a less oblique form, and the Cardium oviputamen 

 under consideration is more ventricose. 



The concentrically waved pinkish brown marks above 

 noticed, though faintly indicated, arc nevertheless charac- 

 teristic, as distinguished from those of a different pattern, 

 in the following species. 



Species 37. (Mus. Cuming.) 

 Cardium tetellinum. Card, testa oblique ovatd, tenu 

 culd, radiatim striata; lutescente-albd, maculis pan 

 mmerosis rosaceo-fuscescentibus umbones versus copk 



Untiginosd, epidermide luted indutd; marginibus intus 

 crenulatis. 



The egg-yolk Cockle. Shell obliquely ovate, rather 

 thin, radiately striated; yellowish white, copiously 

 freckled with numerous small pinkish-brown spots, 

 covered with a yellow epidermis ; margins crenulated 

 within, 



Reeve, Pro. Zool. Soc. L84 I 



Hub. ? 



This shell is of a less ventricose ovate structure than 



the preceding, and farther distinguished by its different 



tinge and stvle of colouring. 



ind \ II. Fig. 17. Mus. Cuming.) 

 < ■uril. testa cordatd, subquadrato- 



Species L7. (Plates 1\. 

 Cardium aculeatum. 



obliqud, radiatim costatd, costis tribus et viginti, con- 

 vexis, aculeis numerosis prominentibus, posticl inflexis, 

 medio seriatim armatis, costarum interstitiis transversim 

 rugoso-fuscescentibus ; intus subprofunde sulcata. 

 The prickly Cockle. Shell ovate, somewhat squarelj 

 oblique, radiately ribbed, ribs three and twenty in 

 number, convex, armed down the middle with a row 

 of numerous prominent prickle, bent over in the pos- 

 terior direction; interstices between the ribs trans- 

 versely rugoseh impressed; light reddish brown; 

 interior rather deeply grooved. 

 Linn i i s, Syst. Nat. (12th edit.), p. 1122. 

 Huh. Sea, of Europe. Britain (dredged oil" the coast of 

 Dartmouth amongst sand and shells at the depth of 

 about ten fathoms); Cuming. 

 The prickly spines of this well know ii species an- pecu- 

 liarly laterally compressed in an early stage of growth as 

 represented at Plate IV. ; but they soon disappear by 

 friction or oiler causes except on 

 umbones. 



beneath the 



Species 38. (Fig.a, Mus. Cuming; Fig.fl, Mus.Said.) 



CaKDIUM IIIAI ii \i; nil m ('<,/•' I* sl*i cm-tint*!, tnniii!*!. ob- 

 lique quadrilaterali,postii timcostaid, 

 COStis ad xenis cl cit/inti, p/oiiii-rrii/n-.r/s, i,ttcr*litiis /*,- 



culiariti r crebripum tatis, costis posiicis la <■ 

 tuberculalo-crenatis, carina prominente, ab umbone ad 

 marginem decurrente, divisis; alba, area posticd macu- 



//'< i-in.net it jHin-l* iiitcriluiii limit!. 



November L844. 



