116* CARDIUM. 



proportion to the breadth, and in having about thirty-five 

 ribs, which are much more closely set with spines. Ka?m- 

 merer in his Cab. Rudolst. has also placed this as a separate 

 species, though without a name. 



echinatum. 14. Shell somewhat heart-shaped, witb 



rather remote longitudinal ribs, armed along 

 the middle with a spinous elevated line, and 

 striated transversely. 



Cardium echinatum. Linnmis Syst. Nat. p. 110,2. Pen- 

 nant Zool. iv. p. 90. Da Costa Brit. Conch, p. 176. 

 t. 14. f. 2. Midler Zool. Dan. i. p. 13. t. 13 and 14. 

 Chemnitz, vi. p. 165. t. 15. f. 158. Schroeter Einl. iii. 

 p. 34. Gmelin, p. 3247. Montagu Test. p. 78. Dono- 

 van, iii. t. 107- f. 1. Maton and Racket, in Lin. 

 Trans, viii. p. 63. Dorset Cat. p. 31. t. 6. f. 2. 

 Wood's Conch, p. 208. t. 49. f. 1 aud 2. 

 Cardium ciliare Var B. Bruguiere Enc. Meth. p. 218. 

 Bonanni Rec. 2. f. 90, and Kirch, f. 88. Lister Arum. 

 Ang. t. 5. f. 33 and Conch, t. 324. f. l6l. Klein Ost. 

 t. 10. f. 40. Enc. Method, t. 298. f. 3. 

 Junior. Cardium ciliare. Lin nam Syst. Nat. p. 1112. Pen- 

 nant Zool. p. 90. t. 50. f. 39- Chemnitz, vi. p. 17S. 

 t. 17. f. 171 and 172. Schroeter Einl. iii. p. 36. Gme- 

 lin, p. 3248. Bruguiere Enc. Meth. p. 21S. Dono- 

 van, i. t. 32. f. 2. Montagu Test. p. 79. Maton and 

 Racket, in Lin. Trans, viii. p. 64. Dorset Cat. p. 31. 

 t. 4. f. 1. Wood's Conch, p. 209- t. 49- f. 3 and 4. 

 Cardium parvum. Da Costa Brit. Conch, p. 177. 

 Lister Conch. t. 325. f. 162. Petiver Gaz. t. 30. f. 1.? 

 Gualter, t. 72. f. C. Knorr, vi. t. 5. f. 5. Enc. 

 Meth. t. 298. f. 4. 

 Inhabits the Northern Ocean. Linnczus. Adriatic. Lister. 

 Baltic. Midler. North Sea. Fabi'icius. Mediterranean. 

 Ulysses. Coasts of Britain. Lister, fyc. 

 The iength is about two inches, which is rather exceeded by 

 the breadth, and the height is about an inch and a half; it 

 has the same number of ribs as C. aculeatum, from which 

 it differs in being rounder, and more strongly marked with 

 transverse wrinkled striae, and in having the spines set in an 

 elevated line on the middle of each rib. Chemnitz (vol. xi. 

 p. 213 and 200. f. 1951 to 1953) has described and figured 

 some other Cardium under the name, but the young shells 

 of this species answer to the character, and have been 

 generally considered to be the Liunaean C. ciliare : in this 



