CONCHOLOGY. 
13. TT. divericata. Turton’s Conchologicat 
Dictionary. 
CARDIUM. 
Shell with the valves equal and convex, mostly 
ribbed longitudimally, and toothed round the mar- 
eings ; hinge with two teeth near the beaks, and 
2 remote lateral one each side; locking into the 
opposite valves, 
1, Cardium aculeatum. Brit. Zool. pl. 53. fig. 
1,— Donovan, pl. 6. 
2. C. spinosum. Brit. Miscell. pl. 32. 
3. C.echinatum. Donovan, pl. 107. fig. 1.— 
Da Costa, pl. 14. fig. 2. 
4. C.tuberculatum, Pultney’s History of Dorset, 
pl. 2. fig. 2. 
%. C.ciliare. Brit. Zool. pl. 52. fig. 2.— 
Donovan, pl. 32. fig. 2. 
This last is the same as C,. echinatum, in a 
lifferent stage of growth. 
6. C. edule. Brit. Zool. pl. 53. fig. 3.— 
Donovan, pl. 124. 
7. C. levigatum. Brit. Zool. pl, 54. fig. 1.— 
Donovan, pl. 54, 
5. C. rubrum. Montague, pl. 27. fig. 4. 
Minute. 
9. C.elongatum. Turton, pl. 13. fig. 8. 
10. C. nodosum. Turton, pl. 13. fig. 9. 
il. C, exignum, Donovan, pl. 32. fig. 3. 
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