266 CERION, GROUP XII. 



Length 17f, diam. 9 mill. 



Length 14|, diam. 7^ mill. San Salvador, (Bland). 



C. AGRESTINUM (Maynard). PI. 38, figs. 81-85. 



Shell shortly rimate, varying from oval to cylindric, rather thin ; 

 whitish or white, copiously striped with blackish-brown or red- 

 brown ; densely and finely rib-striate. Whorls 9-1 0^, the upper 

 ones flat, last two slightly convex ; terminal cone rather straightly 

 conic, the apex obtuse. Aperture ovate, dark within, the peristome 

 narrowly reflexed, whitish. Parietal lamella small ; axial lamella 

 obsolete at the aperture ; parietal callus thin and transparent. 



Length 20, diam. 9 mill. Length 15-18^, diam. 8 mill. 



Length 21^, diam. 8 mill. Length 26, diam. 10 mill. 



Bahamas: New Providence, on the south side, about opposite 

 Nassau, in pine woods with some palms, about half a mile from the 

 shore (Maynard). 



This species differs from C. eximium in the thinner lip and pari- 

 etal callus, and in completely wanting the peculiar internal ridge and 

 gutter described in that species. Mr. W. Bendall collected speci- 

 mens varying from heavily striped to pure white (pi. 38, figs. 82, 83, 

 84), the intermediate specimens having sparse livid streaks on a 

 whitish ground, the base fleshy or bluish. Figure 85 is from a 

 specimen received from Mr. Maynard, representing his form no. 1. 



It has finer, closer riblets than <?. glans varium, which differs 

 moreover in the straight parietal ledge. C. martensi is more finely 

 striate. 



C. BENDALLI Pilsbry & Vanatta. PI. 44, fig. 84. 



Shell very shortly rimate, cylindric, with obtuse, straightly conic 

 terminal cone ; thin, white, copiously mottled and striped with brown 

 and rust-brown ; the apical whorls corneous-brown. Sculpture of 

 delicate riblets a little narrower than their intervals, about 34 on the 

 penult, whorl, much weaker on the base. Whorls 10-1 0^, very 

 slightly convex. Aperture dark purplish-brown inside ; peristome 

 rather narrowly reflexed, white ; parietal callus thin and translucent ;. 

 parietal tooth very small, short. 



Length 19J, diam. 8^ mill. 



Length 21^, diam. 8| mill. 



Bahamas : Abaco (H. D. Van Nostrand). 



