102 THE NAUTILUS. 
Ferussacia subcylindrica L. 'Two easily separated forms of this 
species are found in the district; one occurs everywhere and is 
abundant, the other has only been taken in damp woods on the Isle 
d’Orleans, and is a larger shell. 
Succinea avara Say. Local. 
Succinea ovalis Gould. Notatallcommon. Both these species are 
smaller in size as compared with specimens from western Ontario. 
Suecinea obliqua Say. The ravine running into the St. Charles 
River is a splendid place for this shell. During hibernation I have, on 
several occasions, taken 200 fine specimens in a short time, and some 
are the largest I have ever seen orcaptured. I am inclined to think 
that some of them would pass for Succinea totteniana Lea; there 
certainly appear to be two forms. In cleaning some of these shells 
taken on November 8, 1891, a few of the finest living specimens 
contained the peculiar parasite, reference to which is made by Dr. 
Dall, in his useful pamphlet, “ Instructions for Collecting Mollusks, 
ete.” (Leucochloridium). 
Carychium exiguum Say. Very common in decaying vegetation 
in woods and all damp places. 
NEW LOWER CALIFORNIAN BULIMULI. 
BY H. A. PILSBRY. 
Bulimulus hypodon n. sp. 
With the general form of B. spirifer Gabb, this smaller species 
differs in the more convex lateral outlines of the spire and the much 
shorter body-whorl, which in a dorsal view is not produced and ob- 
long, but short and transverse, and with the suture ascending some- 
what toward its termination. Whorls 73, surface with an oily 
polish, only slight growth-lines, but under the lens showing close, 
fine incised spiral strice, without trace of granulation. Aperture 
slightly over half the total alt.; peristome very broadly and flatly re- 
flexed, recurved at the edge, the margins joined by a rather heavy 
callus, but without defined edge. Columella distinctly truncate at 
base ; internal lamina well-developed, thin, triangular. Color almost 
white, the cuticle with an extremely faint buff tint. Alt. 25, diam. 
12:5 mm.; alt. of aperture (including peristome) 13, width 10°2 mm.; 
width of reflexed outer lip 2.3 mm. 
Lower California, exact locality unknown. 
