Descriptive Catalogue of the British Testacea. 65 
Testa simillima C.echinato, fere omnibus etiam rima, | cardine, dentibus, 
-diversa tantum colore, striis, aculeis, (Linn. Mus. Lud. Ulr. p. 486.) 
First noticed by Dr. Pulteney on the Dorset coast ; 
found by Mr. Montagu at the mouth of the Ex, Devon. 
The specimens we have seen are stronger, thicker, and 
larger than C. echinatum. 
8. ! | | 
lgvigatum.C. testa obovata, striis obsoletis longitudinalibus. Linn. 
Syst. Nat p. 1123. n. 88. M. L. U. p. 490. Linn. 
Gmel. p. 3251. | 
Lister Anim. Angl. t. 5. f. 32. — Conch. t. 332. f. 169. 
. Petiver Gaz. £. 98. f. 10... 
Pennant Brit. Zool. 4. t. 51. f. 40. C. i cecal. 
Da Costa Brit. Conch. p. 178. t. 13. f. 6. 
Chemn. Conch. 6. t. 18, f. 189. 
Linn. Gmel. p. 3255. C. fluviatile. - 
Pulteney in Hutch. Dorset. p. 31. t. T. 6 6. 
Donovan Brit. Shells, t. 54. C. levigatum. 
. Montagu Test. Brit. p. 80. 
Habitat in mari, frequens. 
Testa interdum diametro 2 poll. sub epidérmide rufescente-brunneá, lutes- 
cente- vel rufescente-alba, solida, rugis striisque nonnullis transversis. 
Margo intus crenatus, Tate pn ieri colore rosaceo 
J variegatæ. `. 
"This species was first etm by Lister. Gmelin has 
x B ERN to that author's figure for. an. ron 
ies stituted. penis which he calls Cardium fluvi 
edule. T testa antiquata, bsolete recurvato-imbri- 
. - eatis. Linn. Fauna Suecica, n. 2141. Sy = Nat. p.1124. 
em 90. Linn. Gmel p.3259. ^^ 
Lister Anim. Angl. t. 5. zd $4. — Conch t. 993. f- ITI. 
Gualt. Test, t, T1. F. - : P 
- VOL. VIII. K ec Knorr 
