192 DRILLIA. 
D. BARKLIENSIS, H. Adams. PI. 13, figs. 70, 71, 77. 
Whorls granulated minutely, with a tuberculated shoulder; 
chocolate- or orange-brown, the latter often white-banded above 
the shoulder, and sometimes with an inferior narrow darker 
band ; tubercles, and usually the granules, white. 
Length, 1] inch. 
Mauritius ; New Caledonia (Souverbie). 
D. strigata, Sowb. (fig. 71), is a’synonym; as is also D, © 
Rougeyroni, Souverb, (fig. 77), from New Caledonia, 
D. Borra#, Valenciennes. PI. 13, fig. 74. 
Shell ponderous, dark chestnut or chocolate, with a slight 
shoulder-angle, above which the whorls are slightly concave to a 
sutural band; below the shoulder with close rude longitudinal 
ribs, sometimes decussated into nodules by the raised revolving 
lines; towards the base of the body-whorl the latter remain 
prominent, whilst the former have vanished. 
Length, 1°75-2°25 inches. 
Panama to Mazatlan. 
This species is usually known as D. incrassata, Sowb., a name 
which has priority over D. Botte, but was unfortunately pre- 
viously used by Defrance. 
D. catLosa, Valenciennes. Pl. 13, figs. 63, 68; Pl. 30, fig. 79. 
Shell very solid, with a well-defined shoulder, and sulcate 
space above it; longitudinal ribs low, rounded, closer than in 
the preceding species, the interspaces being very narrow, crossed 
by raised revolving lines ; chocolate-colored. 
Length (decollated), 1°75 inches. 
West Coast of Africa. 
Very closely allied to D. Botte. I think D. carbonaria, Reeve 
(P1. 18, fig. 68), is identical, and very likely the next species also. 
D. consocrata, E. A. Smith. PI. 30, fig. 81. 
Whorls doubly carinated at the suture, below which the surface 
is concave to the periphery ; longitudinal ribs six, strong, crossed 
by raised revolving lines; yellowish brown. Length, 24 mill. 
W. Coast of Afroca. 
The color is lighter and the ribs less numerous than in D. 
callosa, yet it is probably only a variation of that species. 
