CHEMNITZIA. Panama Shells. 167 



• 224. Cliemnitzia ^racilior. Not. sp. 



Shell very long, conic : very pale yellowish brown : with, on 

 each whorl, about twenty-eight slender ribs, which terminate 

 abruptly just below the periphery of the last whorl : with a 

 well impressed spiral line next behind the anterior termination 

 of the ribs, and a few obsolete spiral striae : spire with the out- 

 lines nearly rectilinear except near the apex : whorls twelve, 

 slightly convex, with a well impressed suture : aperture ovate, 

 acute above : labrum very thin : columella a little curved : 

 umbilicus wanting. 



Mean divergence about 13°; length .31 inch; breadth .06 

 inch ; length of spire .255 inch. 



Station. — Unknown, 



Habitat. — Panama ; C. B. A. ! 



2 specimens were found in the sand. 



v/ 



225. €henimtzia major. Nov. sp. 



Shell conic, long : dingy white : with, on each whorl, about 

 twenty-four stout obtuse approximate ribs, which are obsolete 

 anteriorly ; with lightly impressed fine spiral strias over all the 

 surface except the summits of the ribs : spire with the outlines 

 rectilinear: whorls fifteen, moderately convex, with a well 

 impressed suture: aperture subovate: labrum thin: columella 

 nearly straight : umbilicus wanting. 



Mean divergence about 17°; length .38 inch; breadth .09 

 inch ; length of spke .31 inch. 



/Si!a<Mm.-^Unknown. 



Habitat. — Panama ; 0. B. A. I 

 1 specimen only was found. 



220. Cliemnitzia margrinatn. Nov. sp. 

 Shell fusiform cylindric; dingy white: with, on each whorl, 



