Terrestrial Shells of St. Thomas, W. L 223 



Reeve is certainly in error in treating H. incerta Fer. and H. 

 lima Fer. as one species ; the latter inhabits Porto Rico. 



Station. — Unknown ; dead specimens only were found. 



Habitat. — St. Thomas ; Ferussac : also Pfeiffer. Jamaica ; 

 Reeve : corrected in Ad. Contrib. p. 204. St. Thomas, St. John's 

 Tortola, and Anegada ; Mus. Amh. St. Thomas ; T. B, ! 



20. (19.) Helix nemoralina Pet. in Guer. Mag. de Zool. t. 80. 1836. 



Pfr. Mon. Hel. Viv. I. p. 281. 



No. 733. - - - 1848. 

 A variety also occurs, which we found dead only, at the base 

 of the Hill opposite Baker's, St. Thomas, with a very pale 

 brown band along the periphery. 



Station. — Unknown ; (said to have been found on shrubs at 

 Dorothea, West End, St. Thomas.) 



Habitat.— St. Thomas; Petit : also Pfeiffer : also T. B. ! 



21. (20.) Helix ? Sp. indet. 



This somewhat resembles H. sincera Ad. (Proc. Bost. Soc. p. 

 16, 1845,) from Jamaica, but is more finely striated ; the umbili- 

 cus is larger, and the suture not so deeply impressed. Com- 

 pare also H. brevior (depressa an tea Ad. Proc. Bost. Soc. p. 16, 

 1845), from Jamaica and St. Croix. The animal has the habit of 

 attaching dirt to the shell, like H. ptychodes, Pfr. Succinea avara 

 Say,. and Helicina agglutinans Sowb. 



Station. — On the under side of stones ; common. 



Habitat. — Louisenhoi, Misgen, &c., St. Thomas ; T. B. ! 



22. (21.) Helix ? Sp. indet. 



A thin brown shell, with simple lip, strongly striated, width 

 .45 inch. 



Station. — Under stones, and among dead leaves ; common. 

 Habitat.— The garden at Baker's, &c., St. Thomas ; T. B. ! 



23. (23.) Helix peraffinis? Ad. Proc. Bost. Soc. p. 16. 1845. 



Pfr. Mon. Hel. Viv. II. p. 95. 



No. 237. - - - 1848. 

 No. 11.— 2. 



