446 CYPR.EA. 



The shell of which Schroeter has given a coarse figure, appears 

 to be rather more than an inch and a quarter long. The 

 colour is described to be milk-white, with three broken 

 waved transverse brownish bands on the back, and a few dis- 

 tant brownish yellow spots on the margin. It is rather a 

 doubtful species. Cypraa cvata, which Gmelin has also ta- 

 ken from Schroeter, is unquestionably a very immature shell, 

 for the imperfect formation of the teeth is particularly men- 

 tioned. 





Obtuse, Spire quite concealed. 



achatina. 18. Shell ovate, with the sides dark 

 brown, and thickly coated with enamel ; 

 aperture white. 



Cypraea achatina. Solander's MSS. Portland Catalogue. 

 Cypraea ventriculus. Lamarck Ann. du Mus. xvi. p. 452. 

 Cypraea carneola. Martyn Univ. Conch, i. t. 14. 



Inhabits the coasts of Otaheite. Solander. New Holland. 

 Lamarck. 



Shell two inches long, and the breadth is about sixteen lines. 

 The back is of a dirty yellow with faint transverse bands, 

 and there are two or three indistinct white spots near the 

 spire. The sides are of a rich brown, becoming duller to- 

 wards the base, and so thickly coated with enamel, that in all 

 the specimens which I have seen, it has been much cracked, 

 with an appearance of transverse stria? ; the base is fawn- 

 colour, becoming paler towards the aperture, which is white. 



caput-serpentis. 19. Shell triangularly gibbous, 

 brown, with white spots in the back, and the 

 sides blackish ; aperture white. 



Cypraea Caput-serpentis. Lin. Syst. Nat. p. 1175. * Mar- 

 tini, i. p. 387. t. 30. f. 316. Born Mus. p. 179. 

 Schroeter Einl. p. 107. Gmelin, p. 3406. Schreibers 

 Conch, i. p. 62. Lamarck in Ann. du Mus. xvi. p. 90. 



Bonanni Rec. 3. f. 258, and Kirch, f. 257- Lister Conch. 

 t. 702. f. 50, and t. 704. f. 53. Rumphius, t. 38. f. F. 

 Petwer Gaz. t. 96. f.9, and Amb. t. 16. f. 7. Gualter, 

 t. 15. f. I,0. Adanson Senegal, t. 5. f. G. Knorr, iv. 

 t. 9. f. 3. Favanne, t. 30. f. F 1. Enc. Method, t. 354. 

 f. 4. a and b. 



