136 THE NAUTILUS. 
Ohio and New York, as well as in Minnesota and Colorado. In 
general it is remarkably constant in its characters; yet there are 
slight differences ; here I found a few examples from low ground, 
together with V. ovata; they were a trifle larger, with a thicker and 
deeper colored shell than those from upland places. 
Vertigo Oscariana Sterki. 1 
In drift with numerous minute shells, from Guadalupe River, 
Texas, kindly sent by Wm. A. Marsh, I found one specimen of this 
species, which, consequently, is not confined to eastern Florida, where 
it was detected by Messrs. Webster, but may be widely spread over 
the southern part of our country. 
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It may be appropriate to add here some notes concerning a few forms 
of Vertigo which, in my opinion, represent new species, but of which 
the specimens extant are not sufficient for a formal publication. By 
this, I expect to obtain, possibly, more material in order either to 
confirm the species or refer the forms to their nearest relatives. 
In 1887, Mr. A. A. Hinkley, of DuBois, [l., sent me, with other 
Pupidee, one specimen of a Vertigo, probably new, and in 1889 
another of the same; the said gentleman and Mr. Wm. A. Marsh 
kindly forwarded me all their Pupidee, for examination, but so far I 
found no other example; yet I am satisfied such will be found. The 
form is related to Vertigo ovata and Gouldi, but different and is 
characterized by the two palatal lamelle being close together, for 
what reason I gave it the mss. name V. approximans. 
Among several hundred small Pupidze collected in Northeastern 
Ohio (Summit and Lake counties) by Mr. A. Pettingell, there were 
two examples of a doubtless new species, which I in the same way 
named V. parvula. It is about of the size, shape and appearance 
of V. (Angustula) milium Gld.; but ranges in quite another group, 
having a quite simple palatal wall and margin, and only 3 lamelle. 
In Texas, Vertigos seem to be decidedly rare. In many hundreds 
of Pupidee from that state Mr. J. A. Singley and Mr. Wm. A. Marsh 
kindly forwarded me, there were only about half a dozen such ; a few 
milium, one rugosula, m, one oscariana, as mentioned above, and 
one specimen of a form which probably will prove to be a new 
species of quite a peculiar formation. 
LE aes 
