BULLETIN OF THE 
184 
still plainly visible on the same individual, which I have preserved in alcohol 
and added to the Binney Collection of American Land Shells in the National 
Museum at Washington. 
Jaw low, wide, arcuate, ends attenuated, anterior surface with 16 ribs, den- 
ticulating either margin. 
Lingual membrane as in foliolatus ; teeth 50-1-50, with 19 laterals on each 
side. 
Genitalia (3d Suppl., Plate X. Fig. H) ; the form from Gray’s Harbor has 
its generative system very much the same as described for foliolatus above. The 
ovary is much shorter and tipped with brown, and is less tongue-shaped. The 
penis sac tapers to its upper end. The vagina is not squarely truncated above, 
The system much more nearly resembles that of Prophysaon Andersoni (see 
Terr, Moll., V.) than that of the Olympia foliolatus. 
Binneya notabilis, J. G. COOPER. 
Plate I. Fig. 9. 
A new figure is here given, drawn by Mr. Cockerell. 
Triodopsis Mullani, Brayn, var. Blandi, Hemenite. 
Plate II. Fig. 6. 
Shell with the umbilicus partially closed, orbicularly depressed ; dark horn-color, 
obliquely striated; spire short, very slightly elevated, nearly planiform ; aperture 
semilunar, at a right angle with axis of the shell, with a very short nipple-like pari- 
etal tooth; peristome thickened, white, plain, without teeth and roundly reflected. 
Height } inch, breadth 3 inch. 
Post Falls, and banks of Salmon River, Idaho. 
Helix Mullani in form and size resembles very much the common tridentata of 
the Eastern States. Among the various forms it assumes, none are more marked 
than the little depressed shell before me. It can be very readily separated from 
the typical Helix Mullani, or its other varieties, by its very depressed form, small 
size, and the absence of the teeth-like processes on the inner margin of the 
peristome. 
I cannot detect any microscopical revolving lines, or tubercles bearing hairs, 
mentioned by Bland in his description of H. Mullani. 
The above desciption is by Mr. Hemphill, who furnished me with the 
specimen figured. 
Polygyra septemvolva, var. Floridana, Hemruitt. 
Shell deeply umbilicated, elevated, globose conic, light horn-color, with numerous 
fine ribs above, but smooth beneath; whorls 53 or 6, the last subangular at the 
periphery ; suture well impressed; spire greatly elevated with an obtuse apex ; 
