238 ARCA. 



Chemnitz. Tarentum. Ulysses. Nice. Bruguiere. 

 Shell about four or five lines long, and six or seven broad; 

 white, shining, diaphanous, and brittle ; it is angulated, and 

 slightly beaked at the anterior, and rounded at the posterior 

 end ; the transverse striae are slightly oblique, and the hinge 

 has its teeth remarkably large and acute. Chemnitz, although 

 he has given it another name, considered this to be the Lin- 

 mean A. Pe/la. 



* # With the Teeth in a curved line. 



campechensis. 28. Shell ovate-heart-shaped, with 

 longitudinal ribs, and crowded transverse 

 striae ; margin crenated. 



Area Campechensis. Gmelin, p. 3312. 



Area ovalis. Bruguiere Enc. Meth. p. 1 10. 



Area declivis. Solanders MSS. 



Area, No. 22. Schroeter Einl. iii. p. 288. 



Lister Conch, t. 237- f. 71. Enc. Meth. t. 310. f. 1. 

 Inhabits the Bay of Campeachy. Lister. Coasts of Jamaica, 



and Carolina. Solander. * 



Shell about an inch and a quarter long, and an inch and three 



quarters broad ; white, tinged with flesh colour at the margin 



and summits ; it has about twenty-five longitudinal ribs, 



which are crossed with crowded imbricated striae, and at first 



sight has more the appearance of a Cardium than of an 



Area. 



pectunculus. 29. Shell sub-orbicular, thick, 

 slightly eared, with longitudinal transversely 

 wrinkled rather distant ribs ; margin plaited. 



Area pectunculus. Linnccus Syst. Nat. p. 1142. Born 

 Miis. p. 92. Chemnitz, vii. p. 238. t. 58. f. 56S and 569. 

 Schroeter Einl. iii. p. 273. Gmelin, p. 3313. Bruguiere 

 Enc. Meth. p. 111. Brooks s Introd. p. 73. t. 3. f. 37. 



Pectunculus subauritus. Lamarck Syst. des Anim. p. 

 115. 



Cardium amboinense. Gmelin, p. 3255. 



Cardium, No. 27. Schroeter Einl. iii. p. 62. 



Bonanni Rec. Supp. f. 23. and Kirch. 2. f. 129- Lister 

 Conch, t. 239. f. 73. Gualter, t. 72. f. H. Argenville, 

 t. 24. f. B. Favanne, t. 53. f. K and D 6. Enc. Meth. 

 t. 311. f.5. 



