234 ARCA. 



Area imbricata. Solander's MSS. 

 Area, No. 13. Schroeter Einl. iii. p. 284. 

 Cardium Brasiliense. Gmelin, p. 3255. 

 Bonanni Rec. 3. f. 395, and Kirch. 2. f. 117. Litter 

 Conch, t. 244. f. 75. Rumphius, t. 44. f. N. Petiver 

 Amb. t. 17. f. 5. Gualter, t. 87- f. A. Knorr, iv. 1. 14. 

 f. 2. Favanne, t. 51. f. C 3. Ercc. Me* A. t. 307. f. 3. 



Inhabits the coasts of Brazil. Bonanni. East Indies. Lister. 

 Tranquebar, the Nicobar Islands, and Island of St. Croix, 

 in the West Indies. Chemnitz. 



Shell about fourteen lines long, and sixteen broad; gibbous, 

 white, coated with a brown epidermis, and has the anterior 

 slope heart-shaped ; there are about twenty-six longitudinal 

 ribs strongly striated transversely, and their interstices nearly 

 smooth ; margin crenated. Gmelin's Cardium Brasiliense 

 is constituted wholly from Bonanni's figures, and these are 

 quoted both by Chemnitz and Bruguiere for the present spe- 

 cies. 



senilis. 20. Shell heart-shaped, thick, ventricose, 

 with remote broad longitudinal ribs, and the 

 margin plaited; apices recurved and distant. 



Area senilis. Linnaus Syst. Nat. p. 1142. Chemnitz, vii. 



p. 213. t. 56. f. 554 to 556. Schroeter Einl. iii. p. 267. 



Gmelin, p. 3309. Bruguiere Enc. Meth. p. 105. 

 Le Fagan. Adanson Senegal, p. 246. t. 18, f. 5. 

 Lister Conch, t. 238. f. 72. Gualter, t. 87. f. D. Argen- 



vi/le, t. 23. f. K. Favanne, t. 53. f. C. Enc. Meth. t. 



308. f. 1. 

 Inhabits the coasts of Jamaica. Lister. Mouths of the Niger. 



Adanson. Guinea. Humphreys. 

 Shell from two to three inches long, and about equally broad ; 

 ponderous, white, and coated with a greenish epidermis ; it 

 has twelve longitudinal ribs, of which seven are particularly 

 large and broad ; the umbones are much elevated, and the 

 summits recurved obliquely towards the posterior slope ; the 

 inside is white and highly polished. 



indica. 21. Shell somewhat rhombic, with the 

 valves unequal and longitudinally ribbed; 

 summits approximated ; margin serrated. 



Area Indica. Gmelin, p. 3312. 



Area India? Orientalis. Chemnitz, vii. p. 196. t. 55. f. 



543. 



