DRILLIA. 191 



The following unfigured species are referred by the describers 

 to this section of Drillia ; they are all unknown to me, except 

 through the preliminary descriptions. 



D. MARMARINA, Watson. Off Pernambuco. 



Obtained by the Challenger Expedition. Said to be allied to 

 D. sacra, Reeve which does not belong to this section of the 

 genus. 



P. ALBOANGULATA, E. A. Smith. Habitat unknown. 



D. SPINOSA, E. A. Smith. (Allied to D. laeta, Hinds.) 



Habitat unknown. 

 D. INTERPUNCTA, E. A. Smith. St. Thomas, W. I. 



The description applies pretty well to some individuals of D. 

 coccinata, Reeve. 



D. AMANDA, E. A. Smith. Habitat unknown. 



D. DIVERSA, E. A. Smith. Habitat unknown. 



P. QUADRILIRATA, E. A. Smith. Habitat unknown. 



D. INTERSTRIGATA, E. A. Smith. St. Thomas and St. Vincent, W.I. 

 P. HOTTENTOTA, E. A. Smith. Port Elizabeth, So. Africa. 



P. CAFFRA, E. A. Smith. South Africa. 



P. COFFEA, E. A. Smith. Philippine Islands. 



P. BELLULA, E. A. Smith. St. Vincent, W. I. 



Section CRASSISPIRA, Swainson. 

 D. RUDIS, Sowerby. PI. 14, figs. 85, 90. 



Shoulder of the whorls prominently tuberculated, with smaller 

 tubercles below it where the flexuous longitudinal ribs are 

 crossed hy coarse revolving lines ; above the shoulder the whorls 

 are contracted, and* tuberculated at the sutures; chocolate-brown, 

 usually broadly white-banded above the periphery, or the tubercles 

 only white, with sometimes a narrow white band near the base. 



Length, 25-35 mill. 



Galapagos Islands (Sowb.) ; Panama to Mazatlan. 



D excentrica, Sowb. (fig. 90), is founded on an abnormal 

 specimen, the last whorls somewhat displaced. 



D. DIGITALIS, Reeve. PI. 13, fig. 75. 



Shell dark chocolate, covered by rows of lighter- colored granu- 

 lations, caused by the decussation of small flexuous rather 

 numerous longitudinal ribs and elevated revolving lines ; aperture 

 light chocolate. Length, 20 mill. Philippines, Mauritius. 



