Bee i 
se 
1184 General Notes. [ November, 
The dorsal appendages are so modified as to perform functions 
different from the ventral ones. The report gives full details of 
all the new species.— Fournal Royal Microscopical Society. 
A new Unio FROM FLORIDA.—A Unio from the lakes of Sum- 
ter county, Fla., has recently been described under the cognomen 
of Unio cunninghami, by Professor Berlin H. Wright. Itis near 
Unio buckleyi, but differs from that species in the absence of rays 
in all stages of growth, its greater diameter, more angular ante- 
rior portion, its abrupt posterior slope and heavy, oblique cardinal 
teeth (Proc. Acad. Nat. Sci., Phila., p. 58, pl. 1, figs. 1-4)—4 £ 
Gray. 
New LAND SHELLS FROM TENNESSEE.—Zonites wheatleyi and 
Zonites petrophilus are described from The Cliffs, Knoxville, Tenn, 
by Mr. Thos. Bland. The former, which has also been found at 
Tiverton, R. I., is related to Z. viridulus Mke., from which it dif 
fers in the form of aperture, in the descending last whorl and in 
having a wider umbilicus. The latter resembles Z. arboreus Say, 
in its general form, but varies in color, more developed stne 
and has a much wider umbilicus than that well-known spect 
(Annals N. Y. Acad. of Sci., pp. 368-369). Both species at 
well figured.—A. F. G. 
THE FRESH-WATER SHELLS OF COOPER’S CREEK, CENTRAL AUS 
TRALIA—There are three genera of Gasteropoda, Physa A 
Fig... Fig. 2. Fig. 3. Fig. 4. Fig. 5 
Fic. 4.—Paludina ee 
Fic. 1.—Physa. Fic. 2.—Physa. Fic, 3.—Pbysa. 
5.—Tryonia. All nat. size, 
3 ; Nat. size. 
one of Lamellibranchiata, Anodonta 1 sp. (Fig. 6). 
