154 



and margin, otherwise white; exterior dull grayish or greenish 

 speckled. The imbrications on the principle ribs very strong, in 

 some specimens forming small spines concave beneath. Lat. 16, 

 Ion. 20, alt. 10 mm. Tomales bay, Cal. (Henry Hemphill). Mus. 

 Cat. 31268." — Dall, U S Nat mu pr 1:47 (1878). 



2216 E. (Micrarionta) Guadelupiana 



"Shell small, thin, depressed, of a dark-brownish color with 

 a narrow reddish band, bordered on each side by a pale streak, 

 just above the periphery; spire little elevated, suture distinct; epi- 

 dermis strong, in well-developed specimens slightly microscopic- 

 ally hirsute; sculpture of well-marked incremental lines, stronger 

 on the spire, with occasional microscopic punctations; base more 

 or less flattened, the last whorl with the periphery somewhat 

 above the middle of the whorl, umbilicus narrow and deep; aper- 

 ture sub-circular, very oblique with a strong whitish reflection of 

 the peristome, the ends of the lip on the body approximated, 

 throat with the bands showing through. Alt. of shell 6, diam. 

 10.5, aperture diam. 4.5 mm. 



"Guadelupe Island, off Lower California, in N. Lat. about 29 

 degrees, Anthony, 1896; Snodgrass and Heller, 1899. 



"This very well-marked little species is nearest to E. Cata- 

 lina?, but is well depressed, with a larger umbilicus and differently 

 shaped aperture. It seems to be tolerably abundant, though most 

 of the specimens received were defective." — Dall, Phila ac pr 

 1900: 101, t 8, f 14, 15. 



2217 Epiphragmophora leucanthea 



"Shell with 5% 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 band above the peripheral one through which the dark 

 brown with which the interior of the whorls is lined may show 

 through more or less distinctly; nuclear whorls with wavy radial 

 striae, visible under a lens, for a whorl and a half, translucent; 

 succeeding whorls opaque, except as stated, polished, with rather 

 distinct incremental lines and obsolete vermiculations or mallea- 

 tions; base rounded, perforate, with the umbilicus nearly closed 

 by the columellar reflection; aperture rounded, the outer lip 

 slightly reflected, white, with the throat brown internally; body 

 without callus, pillar short, arcuate, with no thickening or denti- 

 cle upon it. Major diam. 28, minor 23.5, alt. of shell 20, of aper- 

 ture 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." — Dall, Phila ac pr 1900: 99, t 8, f 18, 20. 



2218 Epiphragmophora Orcutti 



"Shell globose, moderately elevated, polished, with nearly 6 

 moderately convex whorls forming a dome-like spire; color pur- 

 plish brown, lighter toward the umbilicus; a narrow pale band on 

 the last whorl bordered behind by a darker brown, poorly defined, 

 similar band, both being above the periphery and the suture in the 

 earlier whorls being laid on the anterior edge of tne darker line; 

 nucleus flexuously radiantly wrinkled, pale colored; subsequent 

 whorls with fine incremental wrinkles the ridges of which are cut 

 by revolving, partly obsolete incised lines; as a rule these lines are 

 not deep or continuous, cutting merely the tops of the wrinkles 



