DRILLIA. 181 



This is possibly only a dark-colored, strongly sculptured D. 

 gibbosa. It is P. turricula, Sowb., not Montagu, and P. cor^ 

 rugataj Sowb., not Kiener. 



D. MAURA, Sowerby. PL 10, fig. 70 ; PL 32, fig 43. 



Shell dark chocolate-color, with oblique longitudinal ribs ; 

 nodulous at the crossing of raised revolving lines. 



L. 48, diam. 13 mill. 



West Columbia (Cuming). 



D duplicata, Weinkauff (not Sowerby) (PL 32, fig. 43), is a 

 synonym. 



D. MiLiTARis, Hinds. PL 10, fig. 74. 



Acuminately turreted, yellowish white, sometimes stained with 

 brown ; whorls decussated with nodulous longitudinal ridges, 

 and spiral striae ; upper part of the whorls concave, edged with 

 a slightly nodulous keel. L. 43, diam. 12 mill. 



Veragua, W. Coast of America. 



I am not acquainted with this species, but think it probable 

 that it is only a light-colored variety of the preceding one. 



D. LANCEOLATA, Reeve. PL 10, fig. 65 ; PL 32, fig. 44. 



Shell orange-brown, the tubercles lighter-colored ; spiral 

 striae stronger towards the base of the body-whorl. 



Length, 53 mill. 



Japan. 



Reeve's figure being from a poor and broken specimen, I add 

 a much finer one from von Martens (fig. 44). It may be distin- 

 guished from its allies mainly by the narrower form. 



D. INTERRUPTA, Lamarck. PL 10, figs. 68, 76. 



Sharply turreted, longitudinally ribbed and spirally striated ; 

 yellowish brown, the ribs reddish brown. Length, 30 mill. 



Japan. 



D. seminifera, Gould (fig. 76), is a synonym. 



D. DALLI, Yerrill and Smith. PL 13, fig. 61. 



Color brown of various tints, often deep brown, with one or 

 two spiral bands of yellowish brown, and with streaks of light 

 brown, or the ribs may be pale yellowish brown, aperture brown 

 within, columella whitish in front ; notch deep a little below the 



