of the Island of St. Thomas, W. I. 71 



10. (14.) STENOGYRA* SUBULA (Pfr.). Etiam in Portorico. 



11. STENOGYRA OCTONOIDES (C. B. Ad.). " " 



12. STENOGYRA GOODALLI (Mull.). " " 



13. (15.) STENOGYRA SWIFTIANA (Pfr.). " '" 

 copiosissime. 



14. (7.) STENOGYRA OCTONA (Chem.). " " 



15. (8.) ACHATINA SUBTILIS Shuttl. n. sp. Ab A. pellucens 

 C. B. Ad. certe distinctissime, et ut videtur indescripta. Colu- 

 mella valde involuta et arcuata basique truncata. 



16. (9.) ACHATINA G-UNDLACHI Pfr.f Specimina Pfeiiferiana 

 non vidi, certe distincta ab A. iota C. B. Ad., spira aciculari 

 magis acuminata, et statura majore. Habitat etiam in Ja- 

 maica. 



17. (16.) SPIRAXJS? (sectionova " Geomelaniformes") EJUN- 

 CIDA Shuttl. n. sp. diifert a Spiraxis (Bulimus) gracillima Pfr. 

 costis minus validis, magis approximatis, interstitiis vix incon- 

 spicue striatulis, et anfr. infer, gracilioribus, minus inflatis.J 



* I propose STENOGYRA for the acicular Bulimi, and Achatince, B. subula, octo- 

 noides, A. octona, B. terebraster, and their respective allies, which I am enabled 

 to characterize by the habits of the animal, Ac. The geographical distribution is 

 perfectly beautiful, occupying a belt all round the globe, comprised between 30 

 N. and S., only one or two species going beyond. The genus will contain some 60 

 'species at least The animals are carnivorous, and the genus is to Bulimus, as 

 Zonites is to Helix, and Glandina to Achatina. B. j. a. 



f Professor C. B. Adams erroneously distributed this shell with his A. iota. 



T. B. 



J I sent specimens of this shell to Mr. Poey and Dr. A. A. Gould. The former 

 believes it to be the same as the Cuba shell. Dr. Gould has compared it with 



