136 THK 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 differeuees ; liere 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, i 



In drift with numerous minute shells, from Guadalupe River, 

 Texas, kindly sent by Wni. 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 Avidely spread over 

 the southern part of our country. 



It mav be appropriate to add here some notes concerninga 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, moi'e material in order either to 

 confirm the species or refer the forms to their nearest relatives. 



In 1887, Mr. A. A. Hinkley, of DuBois, III., sent me, with other 

 Pupidse, 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 Pupidas, 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 Gouldii, but different and is 

 characterized by the two palatal lamellae being close together, for 

 what reason I gave it the mss. name V. apjiroximans. 



Among several hundred small Pupidte 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 lamellie. 



In Texas, Vertigos seem to be decidedly rare. In many hundreds 

 of Pupidte from that state Mr. J. A. Singley and ]\Ir. 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. 



1 L. c. 



