154 Helix Jarnaicensis, etc. 



The dentition of this species is, as would be anticipated, of the same 

 type as the allied GcecilianeUa acicula as figured by Lehmann (Lebeuden 

 Schnecken Stettius, p. 128, pi. xiii, fig. 43, and Sordelli, I. c, fig. 2G). 

 The jaw, however, has no appearance of the "brace" like ribs described 

 in that species by Sordelli (Atti Soc. Ital. Sc. Nat., xiii, 1870, 49, pi. i, 

 fig. 25). The ribs are quite like those figured of Helix Lansingi (Ann. 

 Lye. Nat. Hist. N. Y., XI, p. 75, fig. 2 A) although they are narrower. 



For a figure of a similar type of dentition, see that of Stenoyyra hasta, 

 Pfr., in Proc. Ac. Nat. Sc. Phila., 1875, pi. xx, fig. 3. 



G. Gundlachi is widely distributed ; it occurs in Cuba, 

 Jamaica, Haiti, St. Thomas, St. Martiu and Barbados. A 

 closely allied, it not identical, species, has recently been 

 collected by M. Marie in Guadeloupe. 





