THE NAUTILUS. 29 
HELIX (ARIONTA) COLORADOENSIS :—A NEW LOCALITY. 
ROBT. E. C. STEARNS. 
This form first detected by Dr. C. H. Merriam’ in the Grand 
Cafion of the Colorado, opposite the Kabab plateau, at an elevation 
of 3500 feet, in 1890, and subsequently near Resting Springs’ in the 
southeastern part of Inyo County, California, at an elevation of 900 
feet above the Springs, in February, 1891 by Mr. Vernon Bailey 
has recently (March of the present year) been obtained by Mr. C. 
R. Oreutt of San Diego, at Mountain Springs, Colorado desert, San 
Diego County. Mr. Bailey found his specimens among rocks on a dry 
hill: Orcutt found but one example a bleached shell with the band 
barely discernable. With these three points in mind it will be 
seen, that a wide range of distribution is already indicated for this 
species, 
NOTICES OF NEW JAPANESE MOLLUSKS, IV. 
BY H. A. PILSBRY. 
Macroschisma Lischkei n. sp. 
Nemoto, Boshiu (Stearns). 
Shell oblong, the length less than twice the breadth; lateral mar- 
gins convex, anterior margin well rounded, posterior margin bluntly 
rounded, subtruneate. Anterior slope straight, decidedly less than 
half the length of the shell; side slopes straight. 
Surface sculptured with fine radial striz, alternately larger and 
smaller, finer on the forward half of the side slopes ; slightly decus- 
sated by growth lines. Color either (1) uniform black, or (2) 
closely speckled with black on a buff ground, or (3) crimson 
with or without dusky rays. Posterior slope lony for the genus, 
about one-fifth the length of the entire shell; flattened or subcon- 
cave behind the hole, but not guttered. Perforation large, oblong, 
slightly narrower in front, and wider behind, with a very narrow 
Described by me in the Proc. U. S. National Museum, Vol. XIII, 1890. 
* Mollusks of the Death Valley Expedition, U.S. Dept. Agriculture, (N. A. 
Fauna, No. 7), 1893. 
