PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 335 



nucleus miuute, only a little prominent. Aperture large, nearly as long 

 as the shell, lunate ; surface smooth, white. 



Station 1028, in 410 fathoms 5 one living example. Host not known- 



Tuibonilla Emertoni Verrill. 



Verrill, Trans. Couu. Acad., v, p. .536, pi. 58, figs. 14, 14a. 



Shell small, white, lustrous, elongated, with a very slender, acute 

 spire. Whorls eleven, not very oblique, broadly rounded, a little flat- 

 tened at the periphery; suture strongly impressed ; surface very smooth 

 and glossy, without any spiral lines, but with slight, rather indistinct 

 and irregular longitudinal furrows, which are often absent. Apical 

 whorl small, strongly upturned. 



Aperture small; outer lip flattened, projecting a little anteriorly 

 (more or less broken in all my specimens). Columella nearly straight, 

 with no trace of a fold. 



Length, 4.8"""; breadth, 1.2""i. 



Off" Martha's Vineyard, station 895, in 238 fathoms, 1880. 



This shell resembles T. nivea Stimpson, which also occurs in the same 

 region, but the latter is a longer and larger shell, with a decidedly smaller 

 and more prominent upturned nucleus, and is strongly and regularly 

 longitudinally ribbed. 



Named in honor of Mr. J. H. Emerton, for several seasons zoological 

 artist of the Fish Commission. 



Tiirbonilla Bushiana Verrill. 



Trans. Couu. Acad., v, p. 537, pi. 58, fig. 16. 

 T«r&oHi/Za/oj-mosa Verrill aud Smith, iu Verrill, Amer. Jour. Set., xx, p. 398, 

 1880; Proc. Nat. Mus., iii, p. 380, 1880 (non Jetfreys, Ad.). 

 The name formosa having been previously used, I propose to name 

 this species Bushiana, in honor of Miss K. J. Bush, an excellent assist- 

 ant in the conchological work of the U. S. Fish Commission. 



Eulimella Smithii Verrill. 



Trans. Conn. Acad., v, p. 538, pi. 58, fig. 18. 

 Tiirbonilla Smithii Verrill, Proc. Nat. Mus., iii, p. 380, 1880. 



This species seems to belong to Eulimella rather than to Turhonilla, if 

 the two groups be kept apart. 



Menestho striutula (Couthouy) Verrill. 



Mencstbo albiila Gould, Invert. Mass., ed. ii, p. 333, fig. 604 (non Fabr., sp.). 



Crab Ledge, off south side of Cape Cod, 10 to 15 fathoms. 



Menestho Bruneri Verrill. 



Menestho Bruneri Verrill, Traus. Conn. Acad., v, p. 539, July, 1882. 



Shell small, white, with an elongated, acute-conical spire, the apical 



whorl very small, upturned, and incurved. Whorls six, with a rounded 



shoulder close to the suture, the portion next the suture rising abruptly, 



nearly at a right angle; periphery flattened or very slightly rounded; 



