of certain Land Shells. 177 



pears to be a Jamaica type. Helix angustata Fer. is said to 

 occur both in Hayti and 'in Jamaica. (Mke. in Zeitschr. f. 

 Malalc. 1845, p. 61.) "VVe have never seen it in this island. 



We are also somewhat doubtful of the identity of Cyclos- 

 toma li7icinellum Lam. with C. spinulosum Ad., and of C. 

 Banksianum Sowb. with C. hyacinthinum Ad. 



Several species of Jamaica shells, described by Mr. Sow- 

 erby, are said by him, on the authority of Mr. G. C. Bain- 

 bridge, of Liverpool, to inhabit Demerara. To the species 

 mentioned by us on pp. 47-9, and p. 108, (Cont. Conch.) may 

 be added Cyclostoma mirabilc Wood, if, as we now suppose, 

 that species is identical with C. decus&atulum Ad. In the ab- 

 sence of direct information concerning the shells of Mr. Bain- 

 bridge, we must be allowed to doubt whether species, which 

 inhabit the rocky mountains of Jamaica, do also inhabit Dem- 

 erara. 



The following species also are known to us to inhabit Ja- 

 maica, but are said to occur in other islands : Cylindrella 

 brevis Pfr. in Martinique and Cuba ; Achatina leucozonias in 

 Martinique ; Dominicensis in Hayti ; and A. venusta var. 

 unicolor Pfr. in Demerara, We mention only those examples 

 which are most likely to be erroneously referred to other 

 islands. 



We suppose the following species, which have been de- 

 scribed by one of us, to be natives of Jamaica, but they are 

 not certainly known to us as such. Cyclostoma Newcomhia- 

 num was received from Dr. Newcomb as a Jamaica shell. 

 Cyclostoma aurora formed a part of a valuable collection of 

 the shells of Jamaica, which had been made by the late Mrs. 

 W. J. Wilkinson. Cyclostoma Tappanianum was presented 

 to us by R. G. Marshall, Esq., of Morant Bay, being the only 

 terrestrial species in a small collection of supposed Jamaica 

 shells, which belonged to the late Mr. Houseman, a musician, 

 in Kingston. 



No. 9—4. 



