34 INDEX TO PLATES. 



" H. rhodocheila " on the plate.) Varieties , ??, &, i. 

 p. 123. 



PLATE XL VII. 



HELIX POLYCHROA B i n n e y , (" H. rhodocheila," erro- 

 neously.) Varieties, , (9, y, d, e. p. 124. 



PLATE XLVIII. 



Fig. 1. HELIX LINEATA Say, p. 261 ; (in text, pi. 68.) 

 Lingual booklets, p. 262. 



Fig. 2. HELIX SELENINA Gould, (in the text, pi. 

 29 a, f. 2,) p. 240. 



Since the printing of the text, a description of this shell 

 by Dr. Binney, under the name of H. tenuistriata, has been 

 discovered on the cover of the Boston Journal of Natural 

 History, Vol. IV. No. 1, 1842. It appears also to be iden- 

 tical with H. vortex Pfeiffer, (1839,) of several West India 

 Islands. 



Fig. 3. HELIX MULTIDENTATA Binney, (in text, pi. 

 68,) p. 258. 



The cut following the description represents the lingual 

 booklets of H. labyrinthica. 



PLATE XLIX. 



HELIX BERLANDERIANA, Moricand, Figures 1, 2. 

 Dr. Binney has indicated a shell under the name H. albo- 

 lineata, which can be nothing else than a variety of this 

 multiform species, p. 109. 



PLATE L. 



Fig. 1. BULIMUS DECOLLATUS Lin. p. 280. 

 Fig. 2. BULIMUS SERPERASTRUS Say, p. 274. 



