NERITA. 981 



Shell half an inch or an inch long, and equally broad, of a 

 livid purple, reddish, or dark brown colour, v\ith a white 

 band at the suture, and sometimes in the middle of the body- 

 whirl ; Mr. Montagu says it has somewhat the contour of 

 N. g/aiicina, but differs in having a large projection which 

 narrows the umbilicus, and occasions an indenture on each 

 side of it. 



PUNCTATA. 8. Shell sub-globular, whitish, with nu- 

 merous scattered yellowish dots, and three 

 transverse rows of reddish irregular spots. 



Nerita punctata. Chemnitz, xi. p. 173. t. 197. f. 1903 and 

 1904. 



Inhabits the Mediterranean. Chemnitz. 



Shell about an inch and a quarter long, and nearly equally 

 broad, and in form resembles N. spadicea, but differs in the 

 markings ; the colour is whitish, with numerous scattered 

 yellowish dots, and three transverse rows of irregular jagged 

 large reddish spots ; the umbilicus is pervious, the inner lip 

 callous, and the aperture semi-orbicular, 



FULMINEA. 9. Shell sub-globular, with longitudi- 

 nal zic-zac chestnut stripes; umbilicus tooth- 

 ed and nearly pervious. 



Nerita fulminea. Gmelin, p. 3672. Schreibers Conch, i, 



p. 317. 

 Nerita zik-zak. Museum Leskeanum, p. 289- 

 Nerita umbilicata, he. Chemnitz, v. p. 26l. t. 187- f. 1881 



to 1884. 

 Nerita, No. 3. Schroeter Einl. ii. p. 305. 

 Le Gochet. Adanson Senegal, p. 177. t. 13. f. 4. 

 Le Point d'Hongrie. Favanne, ii. p. 26 1. t. 10, lower 



%Z. 

 Lister Conch, t 567. f. 17. Gualter, t. 67. f. M. Seha, 



iii. t. 38. lower fig. oS. Knorr, i. t. 10. f. 4. 

 Inhabits the coasts of Senegal. Adanson. Molucca Islands. 



Favanne. 

 Shell about an inch long, and nearly equally broad, of a whitish 

 or yellowish colour, with dark or pale chestnut longitudinal 

 zic-zac stripes ; I rather doubt whether it has any greater 

 claim to be arranged separately than many of the Varieties of 

 A^ Canrena, 

 VOL. II. 2d 



