, BULLA. 495 



f. E. Knorr, iii. t. 3. f. 1. Klein. Ost. t. 3. f. 60. 



Seba, iii. t. 71. f. 1 to 3, and 7 to 10. Regenfuss, ii. t. 



7. f. .'5. Favanne, t. 65. f. M 5. 

 Variety. With narrower longitudinal bands, and the pillar 



white. 

 Bulla Zebra. Chemnitz, ix. part 2. p. 22. t. 118. f. 1014. 

 Bulimus Zebra. Bruguiere Enc. Meth. p. 357- 

 Argenville App. t. 2. f. L. Seba, iii. t. 71. f . 4 and 5. 



Knorr, v. t. 12. f. 2. Born Mws. t. 10. f. I. Favanne, 



t. 65. f. M 3. 

 Inhabits the American Ocean. Linnaus? Jamaica. Lister. 

 Cayanne. D'Herbigny. Guinea, Cape of Good Hope, and 

 the East Indies. Humphreys. Is a land shell. Chemnitz, 

 &c. 

 Shell about four inches long, and rather more than half as 

 broad, and the following Varieties in colour and markings 

 are described by Muller : 1st, white with a crimson apex ; 2d, 

 white with a yellow apex ; 3d, yellow or white with crimson 

 pillar, and 4th, which is B. Zebra of Chemnitz, has narrow 

 crowded red bands, and a white pillar. It is most com- 

 monly white with broadish brown, or reddish longitudinal 

 waved bands, and the inside white. Born has figured t. 10. 

 f. 2. a white ponderous shell, which he has also arranged as 

 a Variety, but it appears to me to be perfectly distinct, and 

 Schroeter has arranged it as a separate species. See Einlei- 

 tung, i. p. 194, No. 23. The 3d Variety with a crimson 

 pillar is Bulimus J'uhus of Bruguiere. 



purpurea. 54. Shell ovate, ventricose, longitudi- 

 nally wrinkled, and streaked ; pillar trun- 

 cated, and, as also the inside, purple. 



Bulla purpurea. Chemnitz, ix. part 2. p. 25. t. 118. f. 1017 



and 1018. Gmelin, p. 3433. 

 Bulimus purpurascens. Bruguiere Enc. Meth. p. 360. 

 Bulla achatina, Var. Shaw Nat. Misc. vii. t. 248, and xii. 



t. 438. 

 Lister Conch, t. 581. f. 35. Knorr, iv. t. 24. f. 1. 



Inhabits Africa, and is a land shell. Chemnitz. 



Shell about three and a half inches long, and two inches broad, 

 and differs from B. achatina, principally in having the pillar 

 and inside purple. Chemnitz has described the inner margin 

 of the aperture with a black border, but the shell is figured 

 without one, and I never saw a specimen with such a mark. 



