PROCEEDINGS OF THE XATIONAL MUSEUM. H 



rude, incremental lines; suture deep, the wliorl in front of it slightly 

 excavated; base rounded, tlie umbilicus narrow-, deep; aperture sub- 

 ovate, not interrupted by the body; the inner lip nearly straight, the 

 outer lip simple, sharp-edged; the interior of the aperture white. 

 Height (somewhat eroded), 21; diameter, 21 mm. 



U. S. Fish Commission station 3382, in 1,793 fathoms, mud; Gulf of 

 Panama. 



Type.—^o. 123039, U. S. N. M. 



This is the second species of this very interesting genus, and the 

 first from the Pacific. It is larger, more elevated, and nuich more solid 

 than the form from the North Atlantic on which Dr. P. P. Carpenter 

 erected the genus. 



BENTHODOLIUM PACIFICUM, new species. 



Shell resembling i>. ((by-ssonun, Verrill and Smith, from the North 

 Atlantic, from which it ditters by its much more elevated spire with the 

 same number of whorls, its smaller last whorl and aperture in propor- 

 tion to the whole shell, its more slender ])illar and larger umbilicus, and 

 especially by having its spiral sculpture less crowded, and reticulated 

 by narrow, fiattened threads overrunning the spirals and in harmony 

 with the lines of growth. Height, 30; diameter, 20 mm., but less per- 

 fect specimens attain twice this size. 



U. S. Fish Commission station 3375 in 1,201 fathoms, ooze, near JMal- 

 pelo Island, Gulf of Panama. 



Type.— 1^0. 123031, U. S. N. M. 



The operculum is narrower and less spiral than that of the Atlantic 

 species. 



PHOS COCOSENSIS, new species. 



Sliell elongate, acute, eleven -whorled, including a nucleus of four 

 whorls; color, yellowish white, with variable brown spiral banding; 

 sculpture of 11 or 12 narrow, little elevated, distant ribs, more or less 

 angulated at the shoulder; spiral sculpture of numerous rather sharp, 

 close threads, flatter on the last whorl, with a few more prominent be- 

 tween the suture and the shoidder; suture distinct, whorls nuiderately 

 rounded; aperture longer than wide, with an entire outer lip, slightly 

 thickened and internally lirate; throat white, pillar Avith a groove near 

 its anterior edge; canal short, deep; siphoual fasciole moderate; body 

 with a thin white callus. Height, 47; last whorl, 28; diameter, 19 mm. 



The operculum is smooth-edged, as in Fusus. 



U. S. Fish Commission station 3308 in 60 fathoms, near Cocos Island, 

 Gulf of Panama. 



Type.—^o. 12301(>, IT. S. N. M. 



COMINELLA BRUNNEOCINCTA, new species. 



Shell compact, solid, livid pinkish, with narrow, brown, distant, spiral 

 Inies and :i few brown tlammules near the suture; nucleus smooth, 



