80 HELIX-PA PU IN A. 



Oxychona layardi HARTMAN, Proc. Acad. Nat. Sci. of Phila. 1889, 

 p. 91, t. v, f. 3. 



Allied to H. eva in form of the lip, and the solid opaque texture. 

 Differs in the greater elevation of the spire, larger size and 

 coloration. One specimen before me lacks the peripheral dark 

 girdle. 



H. QUIROSI Cox. Unfigured. 



Shell imperforate, conoidly depressed, thin, translucent, rather 

 coarsely striated, of a pale brown throughout; spire broadly and 

 flatly conoid/ acute at the apex; whorls 5? to 6, convexly flattened, 

 the last one considerably inflated, and sharply keeled at the periph- 

 ery ; base rounded ; aperture sharply lunar, angled at the periphery 

 of the last whorl and at the junction of the lower and columellar 

 margins ; lip slightly thickened and expanded ; columellar margin 

 straight, thickened, not dilated or reflected. 



Diam. greatest 0*80, least 0'64 ; height (MO of an inch. ( Cox.') 



Solomon Islands. 



H. (Geotrochus') quirosi Cox, P. Z. S. 1873, p. 147. PFR., Mon. 

 vii, p. 316. 



This species would be like a magnified specimen of H. cleryi 

 Reel, were it not wholly unornamented, much more broadly ex- 

 panded and less conical. ( Cox.) 



H. PYXIS Hinds. PI. 13, figs. 42, 43. 



Small, imperforate, globose-turbinate, the periphery acutely 

 keeled ; white, slightly translucent. Last whorl descending in front, 

 swollen and then contracted behind the lip ; columella narrower than 

 basal lip, not expanded or reflexed except immediately at the inser- 

 tion. 



The surface is slightly shining, irregularly obliquely striate, and 

 has irregular spiral impressed lines on the base. The spire is 

 conoidal, apex obtuse. Whorls 4 , convex, the last swollen, acutely 

 keeled, slowly descending in front; base swollen, then contracted 

 just behind the lip. Aperture small, very oblique, rounded, not 

 angular at the position of the keel, which becomes evanescent on the 

 latter part of the body-whorl. Peristome white, right margin 

 slightly expanded, basal margin thickened within ; columellar 

 margin narrow, not reflexed. 



Alt. 6, greater diam. 7, lesser 6i mill. 



New Ireland. 



