198 DRILLIA. 



ridged, ridges cancellated with longitudinal striae ; aperture 

 small ; jet-black, ridges dirty white. Length, 10 mill. 



St. Vincent, W. I. (Guild ing). 



I do not know this species ; the figure is about double the 

 natural size. 



D. DYSONI, Reeve. PI. 14, fig. 3. 



Chestnut-brown, upper part of whorls here and there inter- 

 ruptedly white-banded. Length, 21 mill. 



Honduras (Dyson). 



Shell with stronger keel, lighter and more inflated than D. 

 fuscescens ; differing also in having a broad sinus and scarcely 

 any canal. I have not seen it. 



D. LYSIDIA, Duclos. PL 14, fig. 4. 



Shell smooth and white above the periphery, below it with 

 narrow white ribs upon a rose-red ground, connecting below 

 with revolving rows of white tubercles. Length, 12 mill. 



Habitat unknown. 



Figured, but not described, as a Columbella. 



D. LAMBERTI, Montrouzier. PL 13, fig. 76. 



Shell 3^ellowish brown, with a central reddish chestnut band, 

 filled with a double series of revolving white-tipped tubercles ; 

 ht'low this, on the body-whorl, is a second narrower band, bearing 

 a single series of small white tubercles, and a brown line and 

 spots at the base. Length 10 mill. 



N. Caledonia. 

 D. MUCRONATA, Reeve. PL 15, fig. 14. 



Shell acuminately pyramidal, whorls somewhat obscurely 

 plicately ribbed, ribs nodulous, aperture short ; brown, middle 

 row of nodules whitish. Length, 8 mill. 



Habitat unknown. 



Described from a single shell having no well-marked characters ; 

 it may be a variety of D. fuscescens. 



D. CLIONELL^EFORMIS, Weinkauff. PL 15, fig. 16. 

 Yellowish, longitudinally plicate, the plicae whitish, closely 

 covered by revolving lines ; whorls contracted and unilirate at 



the suture. Length, 22 mill. 



Habitat unknown. 





