HELIX. 933 



and owing to its having been described to be perfectly smooth 

 by Adanson, has been erroneously confounded with the pre- 

 ceding species ; Bruguiere, on examining Adanson's speci- 

 mens however, found them to differ in being marked with 

 fine decussated strias, and in having the aperture longer, and 

 more contracted at the base. 



PILEUS. 106. Shell sub-umbilicated, pyramidal, 

 smooth, and white with transverse bands; 

 aperture transverse, with the outer lip re- 

 flected. 



Hehx Pileus. Mulhr Verm. ii. p. 80. Born Miis. p. 380. 



t. 16. f. 11 and 12. Gmelin, p. 3637. 

 Helix pileata. GmeHn, p. 3639- 

 Helix, No. 208. Schroeter EinL ii. p. 235. 

 Bulla bifasciata. Gmelm, p. 3431. 

 Bulla, No. 10. Schroeter EinL i. p. IQO. 

 Trochus Pileus. Chemtiitz, ix. part 2. p. 48. t. 122. f. 1046 



to 1048. 

 Lister Conch, t. l6. f. 11. 



Inhabits 



Shell an inch and a quarter long, and one inch broad, with se- 

 ven whirls, and transverse reddish and yellowish bands ; it 

 bears some resemblance to Bulla fasciata, but may be at 

 once distinguished by its reflected lip and the want of a trun- 

 cated pillar, and it is broader in proportion to the length. 



TRiFASciATA. 107. Shell sub-umbilicated, ovate- 

 conical, with three transverse bands on the 

 lower part of the body-whirl, and the outer 

 lip white and reflected. 



Helix trifasciata. Chemnitz, ix. part 2. p. 155. t. 134. f. 



1215. Gmelin, p. 3642. 

 Bulimus trifasciatus. Bruguiere Enc. Meth. p. 317. 



Inhabits Tranquebar ; and is a land shell. Chemnitz. 



Shell an inch and a quarter long, and three quarters of an inch 

 broad, white with three transverse brown bands on the lower 

 half of the body-whirl, of which the middle one is broadest, 

 and two on the whirls of the spire ; it has six smooth flattish 

 whirls, of which the body-whirl is almost as large as all the 

 others, and the aperture is roundish-ovate. Bulimus trifas- 

 ciatus of Dr. Leach's Zoological M iscellany is different, and 

 probably only a variety of H. Guadaloupensis. 



VOL. II. 2 A 



