1024 PATELLA. 



is black, pointed, and somewhat lateral ; the muscular im- 

 pression is milk-white, and the remainder of the inside has a 

 greyish cast. 



REPANDA. 19. Shell ovate, thin, much depressed, 

 with longitudinal somewhat scaly striae, and 

 the summit acute ; margin irregularly in- 

 dented. 



Patella repanda. Gmelin, p. 3707. Schreibers Conch, i. 



p. 346. 

 Patella, No. 25. Schroder Einl. ii. p. 451. 

 Le Petit Soleil de I'lsle de Cythere. Favamie, ii. p. 513. 

 t. 2. f. G 1. 



Inhabits the coasts of the Island of Cerigo. Favanne. 



The base measures about an inch and a quarter by one inch, 

 and the margin is much angulated and indented, with an ap- 

 pearance of havmg been broken ; the shell is grooved, and 

 finely striated longitudinally, and made rough by minute 

 scales or granules ; the colour is yellow or whitish, and grey- 

 ish in the grooves, with broad rays of reddish brown, and 

 the inside white and pearly. 



TENUIS. 20. Shell ovate, depressed, and very nar- 

 row at one end, with ten angulated diverg- 

 ing ribs, and the interstices longitudinally 

 striated. 



Patella tenuis. Gmelin, p. 3708. 

 Patella tenuissima. Turtons Gmelin, p. 575. 

 Patella, No. 35. Schroeter Einl. ii. p. 455. 

 L'Ambre jaune. Favanne, ii. p. 506. t. 2. i. A. ? 

 Martini, i. p. 130. 1. 10. f. 87. 



Inhabits 



Shell about an inch, or sometimes an inch and a half long, and 

 nearly equally broad at one end, of a pale ochre-colour, 

 frequently marked with chestnut towards the margin ; the 

 summit is pointed, and is much nearer the narrow than the 

 broad end ; it has ten angulated ribs with intermediate striag, 

 and the margin is strongly angulated, particularly at the 

 broad end. There are two species in Gmelin with the name 

 of tenuis, which induced Dr. Turton in his translation to 

 change the name to tenuissima ; but I much doubt whether 

 it is applicable, for Favanne's L'Jmbre jaune differs prin- 

 cipally in being thick, and I believe that the thickness of the 

 Patellse is much increased by age. 



