998 NERITA. 



ALBiciLLA. 45. Shell ovate, somewhat ribbed trans- 

 versely, with the lips slightly toothed, and 

 the inner one tuberculated. 



Nerita Albicilla. Linnaus Si/st. Nat. p. 1254. Born 

 Mus. p. 406. ChemnitZy v. p. 313. t. igS. f. 2000, a to 

 h. Schroefer Einl. ii. p. 296. Gmelin, p. 368 1 . Schrei- 

 bers Conch, i. p. 327. 

 La Nerite a bee. Favanne, ii. p. 207. t. 10. upper fig. E. 

 Le Palais de Bopuf. Favanne, ii. p. 208. t. 11. f. F. 

 Lister Conch, t. 600. f. 16. Rumphius, t. 22. f. 8. Peti- 

 ver Amh. t. 21. f. 10. Argenville, t. 7. f. F. Knorr, vi, 

 t. 13. f. 4. 

 Inhabits the coasts of Hitoe. Rumphius. Cape of Good 

 Hope, Isle of France and Manilla. Favanne. China. 

 Humphreys. 

 Shell about half an inch or more commonly an inch long, and 

 three-fourths as broad, thick, and of a pale dull yellow, 

 white, or pale red, with irregular black or dark brown spots, 

 clouds, or bands, or sometimes blackish with white spots ; 

 the spire is lateral, obsolete and flat, and the body-whirl to- 

 wards the summit becomes narrower and compressed ; the 

 pillar-lip is tuberculated, and has about three small teeth on 

 the middle of its margin. 



MAXIMA. 46. Shell thick, glabrous, with black and 

 yellow undulated longitudinal stripes ; inner 

 margin of the outer lip crenulated, and the 

 inner lip a little concave and four-toothed. 



Nerita maxima. Chemnitz, v. p. 287. t. 190. f. 1942 and 

 1943. Gmelin, p. 3683. 



Nerita, No. 98. Schroeter Einl. ii. p. 333. 



Inhabits 



The length, or rather the larger diameter of this shell is an inch 



and a half, and the breadth an inch and a quarter, and it 



appears in the figures to be slightly striated longitudinally; 



the outer margin of the outer lip is entire, but its inner 



margin is crenulated, and that of the inner lip has four broad 



teeth. 



PLEXA. 47. Shell roundish, with transverse crenu- 

 lated ribs which are alternately larger ; inner 

 lip plaited above, and tuberculated below. 

 Nerita Plexa. Chemnitz, v. p. 288. t. 190. f. 1944 and 

 1945. 



