110 



suture; last whorl long and fusoid : aperture ovate, scarcely effuse 

 anteriorly : columeliar j)lait quite oblique. 



Mean divergence about 30°; length .115 inch; breadth .055 

 inch. 



Odostomia solidula. Shell cylindrical in the lower half, conic 

 above : dingy white : thick and smooth : apex subacute : spire with 

 the outlines moderately curvilinear : whorls six, moderately convex 

 with a distinct suture; last whorl rather long : aperture ovate, a little 

 effuse and pointed anteriorly : columeliar plait stout, obtuse, quite 

 oblique. 



Mean divergence about 20*^ : length .11 inch , breadth .04 inch. 



EuLiMA GRACILIS. Shell ovate-conic, turrited : white, translu- 

 cent, opaque along the suture : smooth and shining, with an im- 

 pressed spiral line next below the suture : apex acute : spire with the 

 outlines nearly rectilinear : whorls thirteen, slightly convex, with an 

 indistinct suture : last whorl gradually tapering anteriorly, rather 

 short: aperture rather narrow: labrum much advanced along the 

 middle. 



Mean divergence about 20° ; length .24 inch; breadth .06 inch. 



EuLiMA ARcuATA. Shell ovate-conic, turrited : subtransparent, 

 white: smooth and shining, with a fine impressed spiral line above 

 the suture : apex acute : spire with the axis curved to an extraordi- 

 nary degree in the upper whorls, with the outlines moderately curvi- 

 linear in the plane perpendicular to that of the curvature: whorls 

 ten, quite convex, with a lightly impressed suture ; last whorl long 

 and fusoid : aperture rather long ovate : labium with a well defined 

 deposit. 



Mean divergence about 25° ; length 165 inch ; breadth .055 inch. 



EuLiRiA coNiCA. Shell conic, turrited : white : smooth and 

 shining : apex acute: spire with the axis moderately curved through" 

 out, with the outlines rectilinear in the plane perpendicular to that of 

 the curvature : whorls about eleven, planulate, with an indistinct su- 

 ture : last whorl subangular, quite oblique anteriorly : aperture small, 

 ovate. 



Mean divergence about 22°; length .1 inch ; breadth .042 inch. 



EuLiMA AFFiNis. Shell similar to that of E. conica, but the form 

 is more slender, the axis scarcely curved, the last whorl less oblique 

 anteriorly, and the aperture is larger. 



