198 DRILIIA. 
ridged, ridges cancellated with longitudinal strie; aperture 
small; jet-black, ridges dirty white. Length, 10 mill. 
St. Vincent, W. I. (Guilding). 
Ido not know this species; the figure is about double the 
natural size. 
DD: Dysonr, Reeve. Pl'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. 
Juscescens; differing also in having a broad sinus and scarcely 
any canal. J have not seen it. 
D. Lysrp1a, 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 yellowish brown, with a central reddish chestnut band, 
filled with a double series of revolving white-tipped tubercles ; 
below 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. PI. 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. CLIONELLZFORMIS, Weinkauff. Pl. 15, fig. 16. 
Yellowish, longitudinally plicate, the plicaze whitish, closely 
covered by revolving lines; whorls contracted and unilirate at 
the suture. Length, 22 mill. 
Habitat unknown. 
