96 BULLETIN OF THE 



lip correspondingly curved forward, arched, and thin ; inner lip with a moder- 

 ate callus ; pillar simple, slender, much twisted, the canal short, rather wide, 

 and flaring a little at the end. Max. Ion. of shell, 22.5; of last whorl, 12.5; 

 of aperture, including the canal, 9.5; max. lat. of shell, 9.0 mm. There is no 

 varix behind the aperture. 



Habitat. Station 31, in the Gulf of Mexico, in 1920 fins., lat. 24° 33', 

 Ion. 84° 23' W., temperature 39°.5. U. S. Fish Commission Station 2383, 

 between the delta of the Mississippi and Cedar Keys, Florida, in 1181 fms., 

 mud; Station 2678, off Cape Fear, North Carolina, in 731 fms., ooze, tem- 

 perature 38°. 7 F. 



This fine but rather rude-looking species is particularly characterized by 

 the prominence of its nodules, and the long slope back from them to the su- 

 ture, and its pointed spire. The absence of the varix suggests that it may 

 eventually prove not to be a Drillia ; the soft parts in our specimens having 

 contracted so far into the spire as to be inaccessible. 



Drillia sepynota n. s. 



Plate XXXVI. Fig. 10. 



Shell short, stout, with a smooth rounded whitish inflated nucleus of two 

 whorls and eight subsequent whorls; color whitish or pale madder brown ; 

 spiral sculpture of obsolete spiral striae, generally a little wavy, and often 

 absent from a part or the whole of the shell ; they are strongest on the base, 

 but are generally so faint as not to interrupt the apparent smoothness of the 

 surface nor to be perceptible without a lens ; suture appressed, undulated 

 over the ribs ; fasciole narrow, excavated, smooth except for lines of growth 

 and the undulations due to the ribbing ; transverse sculpture of rather faint 

 growth lines and of (on the last whorl 12) strong, stout rounded ribs, strongest 

 in front of the fasciole where they end bluntly, extending across the whorl 

 and disappearing only on the canal ; the interspaces are about equal to the 

 ribs, which are slightly obliquely set; varix large, stout, simple; outer lip in 

 front of it thin, arched,. not internally Urate; aperture rather narrow; notch 

 subcircular ; inner lip and pillar with an elevated rather thick callus ; pillar 

 concave ; canal short, distinct, deep, curved to the right in the adult; siphonal 

 fasciole distinct. Max. Ion. of shell, 15.5 ; of last whorl, 8.75 ; of aperture, 

 5.5 ; max. lat. of shell, 6.2 mm. 



Habitat. Off Cape Hatteras, N. C, at U. S. Fish Commission Stations 2592, 

 2595, 2600, 2601, 2602, and 2606, in from 25 to 120 fms., mud and sand, tem- 

 perature ranging from 58° to 77° F. 



This strongly marked little species may be readily distinguished from D. 

 ebur Reeve, found with it, and of somewhat similar appearance, by the absence 

 of the spiral threads, the more prominent whorls, the stouter ribs, and the more 

 deeply excavated suture. It is a miniature edition of D. lunata Lea. 



February 11, 1889. 



