PATELLA. 1019 



Nerita, No. 218. Schroeter Einl. ii. p. 367. 



La Nacelle, ou Coquille de Noix. Favanne, i. p. 5Q2. 

 t. 4. lower fig. E 1. 



Lister Conch, t. 545. f. 36. 

 Inhabits the Indian Seas. Martini. Coasts of the Isle of 



France. Favatine. 

 Linnaeus's description is very short, and is unaccompanied by 



any reference, so that it is almost impossible with tolerable 



certainty to ascertain this species, and all authors differ re- 

 specting it. Martini, with a mark of doubt, has cited the 

 Linntean P. neritoidea for his figures 133 and 134, and 

 these Gmelin has referred to for his Nerita violacea. Nei- 

 ther Schroeter, Gmelin, or Schreibers have made any refer- 

 ence without a mark of doubt ; and Favanne, in the Appen- 

 dix, page 849, has referred to La Retorte epitieuse, t. 4, 

 f. F 2, which is Patella aculeata. Martini's shell is about 

 ten lines long and eight broad, and of a whitish colour with 

 violet spots. 



PORCELLANA. .9. Shell oval, depressed, with the 

 margin entire, and the summit recurved ; in- 

 ternal partition liat. 



Patella porcellana. Linnans Si/st. Nat. p, 1257. Mar- 

 tini, i. p. 157. t. 13. f. 127 and 128. Schroeter Einl. ii. 

 p. 399. Gmelin, p. 3692. Schreibers Conch, i. p. 338. 

 Nerita porcellana. Chemnitz, ix. part ii. p. 68. t. 124. 



f. 1082. 

 Crepidula porcellana. Lamarck Syst. des Anim. p. 70. 

 Le grand Bateau ponte. Favanne, i. p. 5Q5. t. 4. f. G 1. 

 Le Sulin. Adanson Senegal, p. 38. t. 2. f. 8. 

 Lister Conch, t. 545. f. 34. Rumphius, t. 40. f. O. Peti- 

 ver Anib. t. I6. f. 25. Knorr, vi. 1. 1 1. f. 5. Da Costa 

 Conch, t. 2. f. (). 

 Inhabits the Indian Ocean. Linnmis. Coasts of Goree. 



Adanson. 

 Shell from ten to fourteen lines long, and nearly three-fourths 

 as broad, of a whitish or brownish colour, variegated with 

 dark brown or red spots, or purplish undulated lines ; the 

 inside is generally white and glossy. 



/fornicata. 10. Shell oval, with the margin entire, 

 and the summit obliquely recurved ; internal 

 partition concave. 

 Patella fornicata. Linnaus Syst, Nat. p. 1257. Martini, 



