WORMS. TESTACEA. 59. Cardium. 



2o5 



f Edule. Shell antiquated, with about 28 deprefled ribs, with obfole^. 

 recurved fcales Common Cock I 



Pennant Brit. Zool. iv. tab. 50, fig. 41. 



Lifler conch, t ah. 333, _/~. 170. /<z£. 334>y» *7"i? 



X;y?^ ^#«i». J^£/. /#£. 5, /7g\ '34. 



Gualt. test. tab. 71, F. KnorrVergn. 6. ta£. 8, /. 2, 4. 



Cbemn. conch. 6* Vign. faC tab.Ag.f. 194. 



Found on all fandy coails, in great abundance, lodged a little 

 beneath the fand ; their place is pointed out by a round depref- 

 fed fpot: Jbeil generally white, with fometimes a blueifli or 

 yeilowim call: ; the ribs a little rough near the circumference. 

 The fifli affords a wholefome and nouriihing food. 



hndicum. Shell grooved, with about 36 triangular fmooth ribs. 



Cbemn. conch. 6. tab, 19, fig* 195. 



Inhabits Iceland and Greenland feas ; refembles the lad, but the 

 grooves arc deeper and more numerous, and there is no tranf- 

 yerfe firis except the outer margin: blackifji/ometimes banded. 



Iranian* Shell antiquated, glabrous, thin, moufe-colour, with angu- 

 duum* lar ferruginous lines ; the margin fmooth, with obfo-? 



lete longitudinal ilrias. 

 Cbemn. conch. 6. tab 19, fig. 198. 



Inhabits Greenland and Iceland: z\ inches long, 3! broad: 

 fometimes marked with brownifh bands : probably a variety 

 of C. edule, * • 



hfiicum* {Shell antiquated, with 20 remote grooves, the intermediate 

 fpaces rugged. 



JBarbufs Shells, tali. 3. fig. 12, 



P^egenf. conch. 1. tab. 12, fig, 77, 78, 



uh&mn. conch. 6, tab. 19, fig. 197. 



Inhabits European teas, principally the Mediterranean: refembles 

 C. edule, but the ihells have an evident ridge on the forer 

 margin when clofed, a narrow depreffure behind the beaks, 

 the grooves deeper, and the ribs fewer and more convex : 

 colour fometimes ferruginous with livid bands; fometimes 

 white, the anterior part brown, within b'lueifh 5 fometimes 

 wjiite with ferruginous yellowifh or blueim bands. 



Glaucum, Shell fubantiquated, the forepart glaucous, the hind-part 

 with 20 grooves imbricate upwards : beaks violet. 

 Poiret Voyage en Barb, z. p. 13. 

 Inhabits Bar bary : 10 lines high, 12 broad, 8 deep. 



Fectinatum, Shell (lightly heart-fhaped and pectinate. 

 Murufund. tefi. tab, z, fig, 1 8, 



Inh 



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