THE LAND SNAILS OF NEW ENGLAND 669 
Vertico Goutpi Binney. (Figs. 59, 60.) This spe- 
cies is smaller than V. ovata; is not so broad compared 
Fig. 59. Fig. 60 
to its length, and is not polished, 
but distinctly striated. The teeth 
within the aperture are five in 
number, that on the body whorl 
very large. Length of shell şs 
inch, breadth »; inch. It occurs 
in woods and groves under leaves. 
It appears to be common in New England, and has been 
found in some of the Middle and Western States. 
VERTIGO ventricosa Morse. (Figs. 61, 62.) In out- 
line the shell resembles that of V. ovata, and it has 
always been confounded with that Fig. 61. Fig. 62. 
species. The shell is much small- 
er, however; has one whorl less, 
and has only five teeth within the 
aperture. Length ;35 inch. It is 
not a common species, though I 
have received it from New York, 
New Hampshire, Massachusetts, and Maine. 
Vertigo BoLLesrana Morse. (Figs. 63, 64.) This 
species has been heretofore confounded with V. Gouldii. 
It has a small shell, lighter colored, Fig, 83- vig. ni. 
polished and translucent. The teeth y 
are five in number, but less promi- \ 
nent. Length ;§>5 inch. Found in 
hard-wood growths, in company 
with the smaller snails. It is not a common species. 
Vertico mium Gould. (Figs. 65, 66.) Despite the 
infinitessimal character of the species described above, 
this species is much smaller than any of the others, being 
only z$o inch in length, and weighing but roso of a 
N 
