102 



HELIX. 



H. LANSINGI, Bland. PI. 20, figs. 49, 50. 



Imperforate, smooth above, substriate below, brownish corneous, 

 suture impressed ; whorls 5i, a little convex, the last not descend- 

 ing, periphery obsoletely angulated, base more convex, excavated 

 around the umbilicus; outer lip of aperture thickened, with an 

 obsoletely denticular lamella. Diam. 3 mill. 



Astoria, Oregon. 



This with the following species forms the group ANCEYIA, 

 Pilsbry (Pristina, Ancey, preoccupied in Vermes). It is character- 

 ized by aculeate marginal teeth and ribbed jaw with a hyaline, 

 Conulus-like, imperforate shell. 

 H. STEARNSII, Bland. PI. 20, figs. 51, 52. 



Like H. Lansingi but larger, more elevated, and more distinctly 

 striated ; aperture without lamella. Diam. 4 mill. 



Astoria, Oregon, Washington Terr., Alaska. 

 H. EPSILON, Pfr. PI, 20, fig. 53. 



Narrowly umbilicated, thin, obliquely, closely plicate above, 

 smoothish below, light corneous ; whorls 3 J, a little convex, the 

 last not descending. Diam. T75 mill. 



New Zealand. 



H. caput-spinulce, Reeve, is a synonym. 



H. CAUSIA, Benson. PI. 15, figs. 67, 68. 



Perforate, somewhat solid, obliquely striulate, with very minute, 

 close spiral slight lines, a little shining, yellowish corneous, paler 

 below, suture impressed, submargined ; whorls 5, somewhat convex, 

 periphery rounded. Diam. 7 mill. 



PJiie Than, Tenasserim. 



H. BERTHOLDIANA, Pfr. PL 4, figs. 67, 68. 



Narrowly umbilicated, conoidally lenticular, thin, closely radi- 

 ately striate, scabrous (juvenile hairy), diaphanous, corneous brown . 

 whorls 5, scarcely convex, regularly increasing, the last with angu- 

 lated periphery, a little convex below. Diam. 8'5 mill. 



Is. S. Antao and S. Vicente, Cape Verd Archip. 



H, CAMPBELLICA, Filhol (unfigured). New Zealand. 



H. PUMILA, Hutton (unfigured). New Zealand. 



Subsection PELIA, Albers, 1860. 

 H. SPIRULATA, Pfr. PI. 20, fig. 56. 



Imperforate, very slightly striate, with concentric elevated lines, 

 thin, fulvous; whorls 5, slowly increasing, periphery compressly 



