﻿380 PROCEEDINGS OF UNITKD STATES NATIONAL MUSEUM. 



Turbonilla formosa Yerrill & Smitli. 



.A.mer. Jouru. Sci., xs, p. 398, Nov., 1880. 



A few living' examples of tliis elegant shell occurred at stations 891 

 and 892, iu 487 to 500 fixthoms. 



Turbonilla Smitliii Yerrill, sp. uov. 



Shell long and slender, smooth, j^olished, white, with a narrow spiral 

 band of light yellowish brown or red just above the suture. Whorls up 

 to twelve, much flattened, little oblique, closely* coiled, with the sutures 

 only slightly impressed; apical whorl small, incurved. Scidpture none. 

 Aperture irregular oblon g- ovate ; outer lip nearly straight for about 

 half its length, rounded and slightly prominent anteriorly. Columella 

 lip nearly straight anteriorly, but curved inward and twisted posteriorly, 

 Avith a slight sjiiral fold that winds into the shell. Length, 7.5""'"; 

 breadth, l.o"""". 



Stations 871, 873, and 87G, in 100 to 120 fathoms. 



This elegant and very distinct species I have dedicated to Mr. Sanr 

 derson Smith, of the United States Fish Commission party. 



Eulimella ventricosa (Forbes). 



G. O. Sars, op. cit., p. 209, pi. H, fig. 19; pi. 22, fig. 16. 



A single dead specimen, not iu good condition, but apparently belong- 

 ing to this species, was dredged by us at Eastport, Me., in 18G8. A 

 perfect specimen was dredged by us this season, at station 873, in 100 

 fathoms. This last has a distinctly incurved, small, nuclear whorl; 

 whorls nine, smooth, polished, white, well rounded, with deep sutures. 

 Ai)erture broad-ovate, slightly eliuse in front. Outer lip broad, well 

 rounded in the middle and projecting well forward. Length, 3.6"'™. 



Odostomia unidentata (Mont.). 



G. O. S.-irs, op. cit., p. 201, pi. 11, figs. 6-8. 



Odostomia modesta Stimpson. — Gould, Invert. Mass., ed. ii, p. 327, fig. 596. 



A single specimen occurred at station 871, in 115 fathoms. This shell 

 ai^poars to be much more rare on the American than on the European 

 coasts. 



Odostomia (Meuestho) sulcata Yerrill, sp. nov. 



Shell small, white, long-ovate ; spire regularly tapered, acute ; whorls 

 about six, moderately convex, covered with many regular, rather strong, 

 revolving grooves. Xuclear whorl strongly intiexed and reversed. 

 Aperture regidarly ovate. Xo tooth on the columella. Length, 2.80'"°'; 

 of body-whorl, LSU"""; breadth, 1.40'"'"; length of aperture, 1.10'"'"; its 

 breadth, .70'"'". 



Stations 871 and 891, iu 115 and 305 fixthoms. 



This differs from all other related species of our coast, except 0. 

 striatula Couth. (= Menestho albttla Gould, non Fabr.), in being strongly 

 grooved spirally ; from the latter it differs in ha\ing fewer whorls and 

 a regularly tapered, acute spire, and in having the spiral lines coai'ser 

 and fewer. Perhaps it is more closely related to the real Menestho 



