122 llELICEA. 



Pfeiffer, 1. c, considers H. suppressa a variety of g-ularis. 

 His bicostata is evidently the true g-ularis, with a less 

 elevated spire. He acknowledges it to be so in letters 

 lately received by me. 



See also remarks on libera for H. Rafinesquea. 



HELIX SUPPRESSA Say vol. ii. p. 253, pi. xxxvii. fig. 1. 



Helix suppressa Say, (Binney's ed.) p 36. 



DkKay, N. Y. Moll. p. 38, pi. iii. fig. 24. 



Reevk, Con. Icon. No. 723, (1852). 

 Helix rjulnris, vnv. Chemnitz, 1. c. 

 Pfeiffer, 1. c. 



The typical specimen is still preserved in the Philadel- 

 phia Academy. 



Pfeiffer considers it as a variety of g-ularis furnished 

 with one tooth only. DeKay also mentions but one tooth. 



I have specimens from Alabama and Florida. It has 

 been found by me only in fields at the roots of the grass, 

 and not under decaying leaves and stumps as the other 

 species. 



HELIX LASMODON Phillips vol. ii. p. 254, pi. xxxvii. fig. 2. 



Helix lasmodon DeKay, N. Y. Moll. p. 47. 



Pfeiffer, Mon. Hel. Viv. iii. 142. 

 Helix macilenta Shuttleworth, Bern. Mit. 1852, p. 195. 



Gould, Terr. Moll. iii. 20. 



Pfeiffer, 1. c. iii. 640. 



I have seen no authentic specimen of Shuttleworth's 

 species, but am inclined from the description to place it 

 in the synonymy of lasmodon. It had not been seen by 

 Pfeiffer or Gould, who repeat the original description. 



HELIX PERSPECTIV A Say vol. ii. p. 256, pi. xxx. fig. 1. 



Helix perspectiva Say, (Binney's ed.) p. 9. 



Deshayes, 3d ed. Lam. iii 315, (1839); in Fer. Hist. i. 81. 



Pfeiffer, 1. c. iii. 99, (excl. H.filiola). 



Chemnitz, ii. 114. 



Reeve, Con. Icon. No. 695, (1852). 

 Helix patala Deshayks. now parvula. 



