BYTHINELLA. 47 
3. BYTHINELLA TENUIPES, Couper. 
Hald., p. 23, t, 1, figs. 14, 15. 
In the collection of the Academy at Phila- 
delphia are preserved specimens of this species 
from Bohemia, Delaware,—the only known 
locality besides the original one. 
4. BYTHINELLA FLORIDANA, Frauen. 
Plate 16, fig. 5. 
Shell turbinate, thin, having four well- 
rounded whorls rapidly increasing in diameter ; 
spire conical, aperture small, round; umbilicus 
narrow and deep. Dark brown. 
Alt. 2°6, diam. 2 mill. 
Florida? 
The locality is very doubtful, the specimens 
in the Vienna museum having the word Croatia 
written on the label and afterwards stricken 
out. Two specimens in the collection of the 
late Hugh Cuming were said to have been re- 
ceived from Florida. The shell has much the: 
(28) 
