104 BRACHYPODELLA, JAMAICAN. 



II. Whorls not so short, their number less than the length of 

 the shell in mm. Westmoreland and Hanover. Var. 

 occidentalis. 



48a. Var. eos nov. PL 4, fig. 34 ; pi 2, fig. 8. 



Shell apparently smooth, but under high magnification 

 showing excessively fine, close striation. Greatest diameter 

 above the middle. Whorls slightly convex, parted by a well- 

 impressed suture, very short, compactly coiled. Axis thick 

 and biplicate in the 4th, 5th, and sometimes the 6th whorls up, 

 then abruptly slender and singly plicate. 



Length 12.6, diam. 2.5 mm., whorls 



Length 11.2, diam. 2.5 mm., whorls 



Eastern Jamaica, parish of Portland: Swift River, near 

 Hope Bay (Fox and Johnson, type locality, pi. 4, fig. 34; pi. 

 2, fig. 8) ; Rural Hill (P. W. Jarvis, pi. 4, figs. 28, 29). Also 

 in the west, see below. 



At Rural Hill there is a somewhat more coarsely striate, 

 cylindric form (pi. 4, figs. 28, 29), with the same internal 

 characters, and measuring 13.6 x 2.5 mm. with 14 whorls, to 

 12 x 2.5 mm. with ll 1 /^ whorls. 



Smooth, short-whorled shells, very like the Portland vari- 

 ety are before me from Ipswich, pi. 4, fig. 32; pi. 2, fig. 10 

 (Jarvis, Henderson), and Mulgrave (Henderson), in St. 

 Elizabeth parish, western Jamaica. They are a trifle more 

 slender, diam. 2.2 to 2.3 mm., with the enlarged whorls of the 

 axis a little less distinctly biplicate. Length varies about as 

 in eastern specimens. Perhaps this is typical alba. 



486. Var. minima nov. PI. 4, fig. 30; pi. 2, fig. 12. 



Similar to the preceding form in the smooth surface and 

 short whorls, but the last whorl only shortly projects. The 

 axis is largest in the 4th and 5th whorls up, and biplicate, 

 above that becoming slender and with one spiral fold. 



Length 9.5, diam. 2.2 mm., whorls 11 (Swift R.). 



Length 9.4, diam. 2 mm., whorls 11% (Clifton). 



Clifton, near Balaclava, St. Elizabeth (Jarvis, type loc.), 

 and Swift River, Portland (Johnson and Fox). 



