EtJLlMELLA. 343 



E. LISSA, Yerrill. PI. 77, fig. 71. 



Small, white, polished; whorls 8, flattened, smooth, suture 

 distinct. Length, 6 mill. 



Off Cape Hatteras, N. C. (142 fms.) 



Remarkable for the small size of the apical whorl and for its 

 pupiform outline. 



E. ENGONIA, Bush. 



White, lustrous ; whorls 7^, flattened, distinctly chamfered 

 above the channeled suture, b6dy-whorl distinctly angulated at 

 the periphery, where there is a prominent rounded thread 

 there are also numerous indistinct, unequal striae only visible 

 under a microscope ; columella with a small distinct fold, not 

 seen in a front view. Length, 6*5 mill. 



Cape Hatteras, and Beaufort, N. C. 



Described as an Odostomia, and placed here with some doubt 

 on account of the long slender shell. 



Yar. TERES, Bush. PI. 77, fig. 82. 



More slender, with flatter whorls, with a distinct impressed 

 spiral line just below the angle. 



E. ALBA, Calkins. PI. 76, fig. 66. 



Small, white, shining, pellucid; whorls 12-13, smooth, flat, 

 suture lightly impressed. Length, 7 '5 mill. 



Cedar Keys, Florida. 

 E. SIMPLEX, d'Orb. PL 77, fig. 74. 



Shell thin, white, finely spirally striate ; whorls 7, slightly 

 convex, with a shallow channel next above the suture. 



Length, 2'3 mill. Jamaica. 



Unfigured Species. 



E. OBSOLETA, Carpenter. Mazatlan. 



E. PELLUCENS, E. OPALINA, A. Adams. Japan. 



Section OCEANIDA, Folin, 1870. 

 E. GRADUATA, Folin. (Desc. not accessible). West Indies. 



