PLATE XXXVI. 



SPECIFIC CHARACTER 

 AND 

 SYNONYMS. 



Shell thick, glabrous, variously coloured, crown obliterated : lip 

 toothed each side. 



* Var, Variegated with white, red, and black. 



Nerita Polita : testa crossa, glabra, colore varia vertice obliterato, 



labio utroque dentato. 

 * Ex albo rubro nigroque variegata. 



Nerita Polita : testa laevi : vertice obliterato, labio utroque den- 

 tato. Linn, Mus, Lud. Ulr. 678. n. 39^. 

 Linn, Syst. Nat. edit. 12. 2. 1254. 731. 

 GmeL Linn. Syst. 6. 3680. 43. 



Nerita Polita. Chemn. 5. t. 193./. 200. 2014. 



Rumpf. Mus. t. 9!^, Jig. 1. ^. 

 Argenv. Concli. t. Lf. h. 

 Seha Mus. 3. t. 38. /. 56. 

 Lamarck T. 6. p. 2. 192. 7. 



In the arrangement of Cuvier, entitled " Regne Animal,''' the 

 Mollusca or animal of the Nerita constitutes one of his " Gasteropodes 

 peciinihranches^^'' the character of which as defined by that author is 

 quite as comprehensive and rather less explicit than the Linnaean 

 limaces : he divides them into several families according to the pecu- 



♦ 



