152 Notes on certain Terrestrial MollusTcs. 



Helix cognata Fer. 



No habitat is assigned by authors to this species. It is 

 from Jamaica, and I am indebted to the Hon. E. Chitty for 

 several fine specimens. 



Helix conspersula Pfr. 



This is also a Jamaica species, from whence I have received 

 it, — it is by no means abundant. 



Helix cornu-militare L. 



Pfeiffer refers this fine species, on the authority of Dr. Jay, 

 to the Sandwich Islands. Many individuals were collected in 

 1853 in that part of the Island of Haiti, which constitutes 

 the Dominican Kepublic, by Salle, who favored me with a 

 specimen. 



Helix Formosa Fer.' 



This species has been generally attributed to Guadaloupe. 

 I have received a considerable number, one with the animal 

 alive, from the Eev. A. Hamilton, who collected them in 

 Antigua. 



Helix orbiculata Fer. 



Pfeiffer gives Guayana and Cayenne as habitat ; numerous 

 specimens were presented to me by the late Mr. J. M 'Murray, 

 collected by him in St. Lucia. 



Helix Pallasiana Pfr. 



Bermuda is stated by Pfeiffer, erroneously I believe, to be 

 the habitat of this species; he refers to the shell as in 

 Mr. Cuming's possession. In the cabinet of Mr. Lounsbury, 

 I lately detected a shell which agrees pretty closely with 

 Pfeiffer's description, entirely so with Eeeve's figure, and 

 identical with two specimens unnamed in the collection of 

 Mr. J. H. Kedfield, received from Dr. Newcomb, as from the 

 Bonin Islands. Mr. Shuttleworth informed me in 1854, that 



