155 



and not the furrows between them; suture distinct, last whorl 

 rounded, plump, toward the aperture descending below the pale 

 band; base plumply rounded, the umbilicus covered by a reflection 

 of the pillar-lip with a minute chink behind it; aperture very ob- 

 lique, thickened, whitish, reflected, especially near the pillar; 

 throat livid brownish with the bands well indicated. Major diam. 

 of large and small specimens, respectively, 24 and 22.5, minor 

 diam. 20 and 18.5, alt. 19 and 16 mm. 



"Habitat: Rosario mesas, in Northern Lower California, in 

 May, 1886, by C. R. Orcutt. 



"This form much resembles in shape the typical E. Kellettii, 

 from which it differs in the absence of the yellow flecking and the 

 different surface sculpture. E. Kellettii is also a more globose 

 shell. The same stock, doubtless, was the origin of both species, 

 as well as several others." — Dall, Phila ac pr 1900: 104-105, t 8, 

 f 19. 



Under living and dead Maguey plants (Agave shawii), with 

 levis and Stearnsiana, exceeding rare in comparison. Major diam. 

 of largest specimen obtained 27, minor 22, alt. 19 mm. This is 

 from the type locality of Stearnsiana, which was much more abun- 

 dant and differing not at all from San Diego specimens. Orcutt 

 No. 1321. It has more the aspect of the tudiculata than the Kel- 

 letti group. One specimen was quite elevated, 24 mm alt. 



2219 Epiphragmophora Stearnsiana 



Hemphill considered this as a variety of Kelletti, and it so ap- 

 pears in Pilsbry's list. 



Under Helix. — "Shell narrowly umbilicated; sub-globose, 

 solid, of a dirty white color, irregularly mottled with crowded 

 ashy blotches, grouped into revolving series below, with a decided 

 wide, brownish revolving band above; with delicate oblique incre- 

 mental striae, unequally cut by revolving lines; spire elevated; 

 whorls 5, rather convex; aperture oblique, semi-circular; peri- 

 stome simple, acute, its columellar termination white, expanded, 

 reflected over half concealed umbilicus. Greater diam. 22,1 esser 

 17; height 12 mill. 



"Helix stearnsiana Gabb, Am J Conch 3:235, t 16, f 1 (1867). 



"Lower California, from Sta. Tomas to Rosario, under stumps 

 of Maguey. (Gabb.) The shell figured and described was re- 

 ceived from Dr. Newcomb. It may not be entirely mature." — 

 B-B, 177, f 310. 



"San Martin Island, in N. Lat. 30 degrees, 30 minutes, An- 

 thony, 1896." — Dall Phila ac pr 1900, 101. 



2220 Epiphragmophora crassula 



"Shell small, solid and heavy, smooth, with 5 whorls; spire 

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

 ed at the periphery; color opaque white with more or less numer- 

 ous very pale brown subtranslucent spiral bands, all or part of 

 which may be absent; usually there is a peripheral white band 

 and between it and the suture one or two translucent bands of 

 which the anterior is most constant; from 2-4 narrower translucent 

 bands may exist in front of the periphery; the base is rounded, at 

 first minutely perforate, later imperforate and sealed by a reflec- 

 tion of the pillar lip; aperture rounded, slightly oblique, with a 

 solid white, slightly reflected peristome, but no callus on the 

 body; pillar broad, short with a conspicuous callosity. Alt. of 

 shell 15, of aperture 6, lat. of shell 15.5, of aperture 7.5 mm. 



"Natividad Island, 10 miles south of Cerros Island, Anthony, 

 1896. 



