994 NERITA. 



the inner lip gibbous, but it is not stated whether the lattei 

 is toothed or entire. 



POLITA. 37. Shell ovate, solid, slightly striated 

 longitudinally, with the spire flat and some- 

 what obliterated; inner lip toothed, and the 

 outer lip crenulated on its inner margin. 



Nerita pohta. Linnmis Syst. Nat. p. 1254. Born Miis. 



p. 403. Chemnitz, v. p. 315. Schroeter Einl. ii. p. 293. 



Gmelin, p. 3680. Schreibers Conch, i. p. 327. Shaw 



Nat. Misc. xvi. t. 678. upper fig. 



Variety A. Pale ash-coloured, or whitish, undulated with 



grey. 



Rumphius, t. 22. f. I. Petiver Amh. t. 11. f. 5. Gualter, 

 t. 66. f. D, F, and G. Geve, t. 22. f. 219 to 221. Seba, 

 iii. t. 38. f. 56. Chemnitz, v. 1. 1 93. f. 2001. 

 Variety B. With two or three transverse red bands, and the 

 interstices mottled with brown and white. 

 Le Jaspe sanguin. Favanne, ii. p. 235. t. 10. f. upper S. 

 Lister Conch, t. 602. f. 20. Rumphius, t. 22. f. K. Petiver 

 Amb. t. 1 1. f. 6. Gualter, t. 66. f. G. Argenville, t. 7- 

 f. K. Klein Ost. t. 1 . f. 29. Knorr, iii. 1. 1. f. 4. Geve, 

 t. 22. f. 223 and 224. Regenfuss, i. t. 4. f. 43. Chem- 

 nitz, V. t. 193. f. 2002 and 2003. 

 Varietij C. With transverse red and white alternate bands. 

 Born Mm. 1. 17. f. 13 to 16. Chemnitz, v. t. 193. f. 2004. 

 and 2005. 

 Farieft/ D. Elegantly variegated with dark brown and white, 

 and three darker transverse bands. 

 Chemnitz, v. 1. 193. f. 2006 and 2007. 

 Variety E. Blackish with white interrupted longitudinal 

 stripes, and paler transverse bands. 

 Chemnitz, v. t. 193. f. 2008 and 2009. 

 Variety F. Olive variegated with white, and three transverse 

 rows of angulated or feather-shaped black spots. 

 Nerita pennata. Born Mas. p. 404. t. 17. f. H and 12. 



Shaw Nat. Misc. xvi. t. 678 lower fig. 

 Chemnitz, v. t. 193. f. 2011 and 2012. 

 Variety G. Minutely striated transversely, with a yellowish 

 red hne round the margin of both lips. 

 Nerita polita Oceani Austrahs. Chemnitz, v. t. 193. f.2013 



and 2014. 

 Lister Conch, t. 600. f. 17. 

 Variety H. Black, with two greyish white transverse bands, 

 and the summit white. 



