1036 ' PATELLA. 



Patella, No. 36, and No. 90. Schroeter Einl. i. p. 456, 



and p. 478. 

 Le Soron. Jdamon Senegal, p. 32, t. 2. f. 3. 

 Le Feuillete, ou I'Etage. Favanne, i. p. 541. t. 4. upper 



fig. F 1. 

 Le Ride. Favanne, i. p. 542. t. 4. upper fig. F 2. 

 Lister Conch, t. 544. f. 30 and 31. Petiver Gaz. 1. 152. 

 f. 14. Klein Ost. t. 8. f. 9, 11, and J 2. Martini, i. p. 

 146. t. 12. f. 1 1 1 to 1 13. Humphreys Conch, t. 4. f. 10. 



Inhabits the coasts of Barbadoes. Lister. Senegal. Adanson. 

 Martinique and St. Domingo. Favanne. England. Pul- 

 teney, S^c. 



Shell a quarter, or sometimes half an inch in diameter, with 

 the summit more or less recurved, or sometimes much ex- 

 tended and nearly erect; it is a thick opake white shell, and 

 in some specimens the transverse imbricated wrujkles are 

 much stronger and more prominent than in others. Fa- 

 vanne, as well as Pulteney and Montagu, considered this to 

 be the Linnaean P. aiitiquata ; and Le Soron of Adanson, 

 which is P. nivea of Gmelin, is obviously the same. Gme- 

 lin, besides the present, has also at p. 3735 an obscure spe- 

 cies of Schroeter's under the name of P. antiquata. 



cocHLEATA. 45. Shell with distant strong longitu- 

 dinal ribs, and the summit recurved ; base 

 ovate, and the margin sinuated. 



Patella cochkata. Chemnitz, xi. p. 182. t. 197. f. 1919 

 and 1920. 



Inhabits die South Sea. Chemnitz. 



The base appears, by the figures, to be about five lines long, and 

 four broad, and the summit is incurved and reflected over 

 the posterior end ; the shell on both sides is white, and 

 marked with about six distant strong longitudinal ribs. 



CALYPTKA. 46. Shell convex, with longitudinal 

 somewhat wrinkled ribs, and the summit re- 

 curved ; base roundish, and the margin cre- 

 nated. 



Patella Calyptra. Martyn Univ. Conch, i. t. 18. Chem- 

 nitz, X. p. 340. t. 169. f. 1643 and l644. Gmelin, p. 

 3712. Schreibers Conch, i. p. 354. 

 Inhabits the North West Coast of America. Martyn. 

 The base is about half, or three-quarters of an inch broad, and 

 the height is nearly equal to two-thirds of the diameter ; the 



