ANOMA. 17 



slightly angular at its base. Strias well defined on the last 

 whorl. Whorls 8. Length .76, breadth .25 (19x6.25 mm.). 

 A younger semitransparent specimen (I have only two) has 

 only 7% whorls, length .72, breadth .26 " (18x6.5 mm.). 



Central Jamaica: Mt. Diablo, St. Ann (John B. Hender- 

 son, Jr., P. W. Jarvis). 



Cyl. m. var. fuscolabris CHITTY, Contrib., p. 7 (1853). 



The locality was unknown to Chitty, whose description is 

 quoted above. The specimens before me from Mt. Diablo are 

 stoutly fusiform, pale yellow shells (old museum specimens 

 fading to gray- white), the last whorl white, with a brownish- 

 pink streak behind the basal and outer lips, but not extending 

 up to the suture ; and in three of eleven shells seen, the early 

 whorls are similarly but faintly tinted. The glossy surface 

 is faintly, irregularly striate, almost smooth; the latter half 

 of the last whorl becoming closely rib-striate. The keel is 

 blunt and low, though distinct, the stria3 passing over it. It 

 is an angle rather than a keel. The aperture is somewhat 

 oblique, distinctly or slightly angular below, white inside, 

 with a brown stripe within the lip, which is white on both 

 sides. The outer lip is strongly sinuous ; columellar lip only 

 a little retracted at its insertion. Columella strongly trun- 

 cate. 



Length 18, diam. 6.9 mm., whorls 6^2 (Mt. Diablo). 



Length 19.5, diam. 6.5 mm., whorls 7 (Mt. Diablo). 



Length 17, diam. 6 mm., whorls 7% (Mt. Diablo). 



Length 19.5, diam. 7 mm., whorls 7 (Mt. Diablo). 



It has some resemblance to A. nit ens (Chitty), but that is a 

 strongly carinate form. 



10. A. RADIATA (Chitty). PL 18, figs. 31, 32, 33. 



" Shell long, not robust, shining; lip and last part of last 

 whorl white ; rest dirty yellow ; whole shell boldly but beauti- 

 fully striated. Aperture long and angulated below, where 

 the peritreme is much expanded and ' but little reflected. 

 Whorls nearly 9. Length .9, breadth .23 " (22.5 x 5.75 mm.). 



Bogwalk, interior of St. Catherine (C. W. Johnson). 



Cyl. maugeri var. radiata CHITTY, Contrib. to Conch., no. 1, 



