102 DESCRIPTION OF NEW 



My Cabinet. 



Cabinet of Professor Nuttall. 



Diam. -3, Length -4 of an inch. 



Remarks. — There is a very close resemblance between this species 

 and P. nuclea (herein described). It is, however, less oblique, larger, 

 and less elevated in the spire. 



Lymnea apicina. Plate XXIII. fig. 94. 



Testa ohtuso-conic&, subsolidd, Icevi, corned; spira breviusculd; anfraclibus qualemis ; 

 columella reflexd ; apertura subovatd. 



Shell obtusely conical, rather solid, smooth, horn-coloured ; spire rather short; whorls 

 four; columella reflected ; aperture subovate. 



Hab. Wahlamat, near its junction with the Columbia River. Pro- 

 fessor Nuttall. 



My Cabinet. 



Cabinet of Professor Nuttall. 



Diam. -3, Length -4 of an inch. 



Remarks. — This small species is rather more globose than usual. 

 It is distinguished by a dark apex. Within the outer lip there is a 

 dark brown band. 



