90 



In G. elcgans the s?piral striae ascend the sides of their ribs, but do 

 not impress their edges. 



In Geornelania the nucleus generally consists of two whorls, of 

 which the second is larger than the following whorl. 



At ' the Falls' in the eastern part of Jamaica, Mr. Chitty has found 

 a variety of CylindreUa hrevis, which is 1.07 inch long, and .415 inch 

 in diameter! The lip is rather more expanded than is common in 

 C, brevis, but I am unable to detect any other peculiarity. Some of 

 the specimens from the same locality are of much less ^ize. 



A variety of Achatina pelhicens has a few transverse brown 

 stripes. 



Description of supposed new species of land shells w^hich inhabit 

 Jamaica ; continued from p. 84. By C. B. Adams. March. 1850. 



Cyolostoma virgineum. Shell short, globose-conic: dingy 

 white, with transverse brown lines, most of which are on the last 

 whorl ; with the peritreme deep red : with crowded transverse rather 

 strong perpendicular lamellae, which are decussated by the slender 

 spiral ridges, that begin to appear on the penult whorl and are well 

 developed on the last whorl, the intersections being neither nodulous 

 nor spinous : spire with very convex outlines : apex truncate with the 



loss of whorls : whorls remaining three, very convex, with a 



very deep suture ; last whorl not detached in any part from the penult 

 whorl : aperture exactly circular : inner peritreme moderately pro- 

 duced and a little reflected : outer peritreme well expanded through- 

 out in the plane of the aperture, subauriculate above, finely striated 

 concentrically, rather concave ; umbilicus not very wide, but of near- 

 ly equal diameter through the truncated summit. 



Mean divergence about 68®; length .35 inch; greatest breath .39 

 inch ; least breadth .28 inch. 



Ctclostoma ANOMALtJM. Shell short, globose-conic: on the up- 

 per whorls very pale brown ; on the last two whorls with numerous 

 fine spiral lines of very pale bro\vn on the ridges and of dark brown 

 in the interspaces : with very numerous spiral ridges, of which a few 

 small ones alternate with the larger, decussated by numerous inequi- 

 distant transverse perpendicular lamellae, which are developed, at the 



