PATELLA. 1025 



MARGARITACEA. 21. Shell ovate, depressed, with 

 irregular angulated ribs, and transverse striae ; 

 summit acute, and the margin angulated and 

 crenated. 



Patella margaritacea. Gmelin, p. 3707. 



Patella barbara. Born Mas. p. 417.? 3Ius. Leskeanum^ 



p. 300. 

 Patella, No. 33. Schroeter Einl. ii. p. 455. 

 Le Grand Soleil. Fuvanne, i. p. 513. t. 2. f. G2. 

 Gtialter, t. 8. f. L. Martini, i. p. 129- t. 10. f. 85, A and B. 



Inhabits Iceland. Gmelin ? Coasts of Patagonia. Favanne. 



The length of the base is rather more, and the breadth rather 

 less than two inches ; the shell is white clouded with yellow, 

 and the inside pearly with an orange ring round the muscular 

 impression, and the teeth at the margui on the inside are of 

 a chestnut-colour. Favanne's figure is marked with much 

 stronger concentric striai than Martini's, but in his Appen- 

 dix, p. 848, they are said to be the same, and the latter may 

 probably have been made from a worn shell. 



BARBARA. 22. Shell toothed, with nineteen elevated 

 vaulted muricated ribs. 



Patella barbara. liinnmis Syst. Nat. p. 1258. Schroeter 



Einl. ii. p. 405. t. 5. f. 1. Gmelin, p. 3696. 

 Knorr, v. 1. 13. f. 5. 

 Inhabits the coasts of the Falkland Islands. Gmelin, 

 I am wholly unacquainted with the shell which Schroeter has 

 figured for this species, and am inclined to believe that P. 

 Cypria would answer better to the Linucean description; 

 the greatest diameter of the base appears by the figure to be 

 about an inch and a half, and it is said to be convex, white, 

 ornamented with a broad brown band and rays, and to have 

 nineteen longitudinal ribs with intermediate smaller ones. 



CYPRIA. 23. Shell oval, thick, rather shallow, with 

 foliaceous elevated ribs, and the margin 

 plaited. 



Patella Cypria. Gmelin, p. 3698. 



Patella, No. 29. Schroeter Einl. ii. p. 453. 



Le Marbre blanc ^ cotes. Favanne, ii. p. 509. t. 11. f. 



D 1. 

 Martini, i. p. 125. t. 9- f. 79. 

 Inhabits the coasts of the Isle of France, and New Zealand. 

 Favanne. 



