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1581 Vallonia costata Muller. 
Sterki, Nautilus 5:100, ‘“‘Some notes on North American forms 
of Vallonia,’’ mentions this among the other recognized species. 
1582 Fissuridea saturnalis Cpr. 
Santa Barbara and San Diego, Cal. 
1583 Emarginula radiata Gabb. 
Eocene, of California. 
1584 Cemoria crucubuliformis Conr. 
Miocene of California. 
1585 Scaphella (Voluta) Arnheimi 
“Shell regularly formed, elongate-ovate; body whorl more 
than 2-3ds as long as the spire; the spire an inch long, and made 
up of 6 whorls, the terminal nucleus being very small, pointed and 
oblique, which latter character places this species in the section 
Scaphella of Dall. Ground color obscure yellow, covered by a 
layer of chalk-like deposit. The body whorl has some coarse 
longitudinal elevations and depressions, remnants of former lip 
extensions, and there are 2 large patches of dark rusty red aia 
wide interval which do not appear to form an interrupted band. 
The aperture is elegantly formed and measures 1% inches long 
by % inch wide. The inner lip is regularly outlined on the colu- 
mella; columellar plaits 4, sharply oblique, the last one strongest, 
forming a prominent ridge parallel to the canal. The upper out- 
lines of the mouth meet in a sharp angle, but the base has a 
well defined bifurcation. The whole of the aperture and the edge 
of the outer lip are heavily coated with enamel of a yellowish tint, 
and rust stained. Size 3% inches long, and 1% inches wide. Ani- 
mal without operculum.’’—J. J. Rivers, Nautilus 5:111. 
Type locality:—Monterey bay, Cal. (dredged). 
1586 Paludina Japonica Mart. 
Williard M. Wood, Nautilus 5:112, gives an interesting ac- 
count of this snail in the San Francisco markets. 
1587 Fluminicola Merriami Pilsbry & Beecher. 
“Shell small, globose turbinate, narrowly but distinctly and 
deeply umbilicated. Spire low-conic, acute; whorls 4, slightly 
shouldered below the sutures, the upper-lateral portion rather 
flattened, periphery and base convex. Surface smooth, horn-col- 
ored. Aperture oblique, ovate, angled above, broadly rounded 
below; upper portion of the inner lip adherent to the body whorl, 
lower portion arcuate, without a callus thickening. Alt. 3, diam. 
2.5 mm.’’—Pilsbry, Nautilus 5:143. 
Type locality:—-warm spring in Pahranagat Valley, Nevada 
(C. Hart Merriam). 
1588 Patula strigosa Gould. 
R. E. C. Stearns, Nautilus 6:1, records this from Coon Mt., 
Arizona, and discusses is occurrence. 
1589 Sterki, V.: 
Preliminary list of North American Pupidze (north of Mex- 
ico). Nautilus 6:2. Enumerates the following West American 
forms, besides various species now included in Bifidaria, Vertigo, 
etc. 
