CONTRIBUTIONS TO CONCHOLOGY. 



Descriptions of Thirty Supposed New Species and Varie- 

 ties of LAND AND FLTJVIATILE SHELLS of JAMAICA, with 

 Observations on some Shells already described. 

 By EDWARD CHITTY, ESQUIRE, Corresponding Member 

 of the New- York Lyceum of Natural History, dec., 

 <&?., <&c. Kingston, Jamaica, October 1853. 



CYCLOSTOMA Pearmanseanum ; new. 

 " Barklyanum ; new. 

 " maritimum, observations on. 

 TROCHATELLA pulcliella, Ad. var. labiosa, Chitty ; new. 

 GEOMELANIA observations on. 



sinuosa new. 

 inornata new. 

 parva new. 



" procera observations on. 



OYLINDRELLA Pearmanseana ; new. 



Maugeri observations on. 



" " var. radiata new. 



var. fuscolabris new. 

 var. albo anfraclus new. 

 " " var. prunicolor new, 



" " var. rosealaHris new. 



" " var. pulchella new. 



var. pulla new. 

 var. nitens nnw. 



var. unicolor, AiJ. var a, Chilly ; new, 

 var. bicolor new. 

 var.quarlricolor new 

 " var. raphinina new. 



' var, Iricolor observations on. 



" var. unicincta, observaliona on. 



hydrophana new. 

 " striata new. 



Adainsiana new. 

 dubia new. 



