Helix Jamaicensis, etc. 149 



he has kindly presented to me. The shell is destitute of 

 epidermis, and white, without any trace of brown bands. 

 Deshayes (in Fer. Hist., 1. c.) mentions that the bands are 

 on the epidermis only, on removal of which the shell is 

 white. 



The dimensions of my specimen are as follows : Diam. 

 maj., 49 ; min. 35 mill. ; Alt. 20 mill. 



The surface of H. obliterate!, is described as covered with 

 coarse granulations, of H. angulata, with numerous striae, 

 but the nuclear whorls of the latter and the striae are finely 

 granulated ; this character, at least of the three upper 

 whorls, is distinctly seen in young specimens. 



I am disposed, from Mr. Parkhurst's discovery, to con- 

 sider that Haiti may be the true habitat of H. obliterata, 

 presenting another illustration of the remarkable connection 

 of the land shell fauna of Haiti with that of Porto Rico (see 

 ante p. £1-2). With respect to the doubt of Shuttleworth 

 as to the specific difference of obliterata and angulata, I 

 would remark that the latter may be fairly treated as a geo- 

 graphical variety of the former, as may //. Luquillensis of 

 II. Audebardi. 



Helicina intusplicata, Pfr. 



SYNONYMY. 



Helicina intusplicata, Pfr., Zool. Proc, p. 98, 1850. 



Helicina intusplicata, Sow., Thes., HI, N. 37, figs. 60-61, 

 1866. 



Helicina intusplicata, Reeve, Conch. Icon. N. 25, pi. iv, 

 fig. 25, 1873. 



Helicina SmiUiiana, Pfr., Malak. Blat., p. 90, 1866. 



I have no doubt of the identity of H. Smithiana and in- 

 tusplicata ; of the latter the habitat is not given by the 

 authors who refer to it. 



H. Smithiana was discovered by Mr. Smith (brother of 

 my friend Mr. Sanderson Smith) on Mount Plat on, about 



