63 

 WEST AMERICAN MOLLUSCA.— III. 



The first part of the proceedings. of the academy of natural 



Bc'eaces of Philadelphia for 1900 contains the following articles 



pert lining to our subject: — 



Dall, William Healey: Additions to the insular land-shell faunas 

 of the Pacific coast, especially of tne Galapagos and Cocos Is- 

 lands. 88-106, t 8. 



Pilsbry. Henry A. : Addendum to Dr. Doll's paper: note on the 

 anatomy of Guppya hopkinsi Dall. 105. 



Note on the anatomy of the helicoid genus Ashmunella. 107- 



109, 3f. 



Mollusca of the Great Smoky mountains. 110-150. 



The following descriptions are of new species, taken from 



Dr. Doll's paper: — 



EPIPHRAGMOPHORA LEUCANTHEA. 



'•Shell with 5-J rather convex whorls; pale lavender, nearly 

 white below, with an obsolete white peripheral band, above which 

 the whorl is more or less tinged with pale bluish gray, a translu- 

 cent bond above the peripheral one through which the dark brown 

 with which the interior of the whorls is Mned may show through 

 more or less distinctly; nuclear whorls with wavy radial striae, visi- 

 ble under a lens, for a whorl and a half, translucent; succeeding 

 whorls opaque, except as stated, polished, with rather distinct in- 

 cremental lines and ubsolete vermiculations or malleations; base 

 rounded, perforate, with the umbilicus nearly closed by the colu- 

 mellar reflection; aperture rounded, the outer lip slightly reflect- 

 ed, white, with the throat brown internally; body without callus, 

 pillar short, arcuate, with no thickening or denticle upon it. Ma- 

 jor c iam. 28, minor 23.5, alt. of shell 20, of aperture 15 mm. 



''Eastern side of Cerros Island, Anthony, 1896. 



''This is evidently a derivative from E. Veatchii, from which 

 it differs in the absence of the numerous interrupted brown bands, 

 in the usually blunter and lower spire and more distinct and deep- 

 er sutures."— Doll, 09, t 8, f 18, 20. 



E. CRASSULA. 



"Shell small, solid and heavy, smooth, with 5 who^s; spire 

 rather pointed, suture distinct, not deep, last whorl evenly round- 



