THE NAUTILUS. 27 



ana, monodon alicice, cragini and thyroides were the rule, except on 

 a chalky uplift called Rocky Comfort in Arkansas. Here we found 

 Helicina orbiculata tropica, Bulimulus dealbatus and Omphalina 

 friabilis in the uplands, and Poly, texasiana (banded) and Poly, 

 monodon friersonii in low land. 



Striking the hill country near Horatio, under the first stone out- 

 crop we found P. albolabris Alleni and the first Poly. Binneyana I 

 had seen alive. Wherever we found a shaded hill-top after that, 

 with an outcrop of rock, we found these shells ; and from the number 

 of " bones " scattered about, they must be plentiful on warm spring 

 days. Sometime I hope to get enough for all of my friends. We 

 occasionally found P. Binneyana traveling, for there were times a 

 week together when we walked in our shirt sleeves and the frogs and 

 birds were singing. 



P. albolabris was found more frequently under logs, but I found 

 only one binneyana in that situation. Two P. albolabris alleni here 

 usually hibernate together, just under the soil, face upwards. At 

 Hardy I found as many as eight under one log, but the Hardy shell 

 seems to me another variety, or a subdivision of a variety. It is the 

 same as I have found in Kansas, smaller than the Menu alleni, more 

 solid and compact, and more perfectly opaque. 



From Horatio to Mena it is a clay hill country, and the shells were 

 much the same. At Mena we seemed to strike a truly snail territory. 

 Here the Rich Mountain range is 2,750 feet above sea level, the 

 Fourche and Black Fork ranges were about as high, the Chastats 

 about 2,000 feet, and it was but a little distance to the Magazine 

 Mountain and the Petit Jean range, as high as the Rich Mountains. 

 I found deep, mossy, ferny coves that in the Tennessee mountains 

 would be jeweled with snails. Gastrodonta demissa brittsi here was 

 large as acerra, and the species were more numerous. It looked 

 altogether more promising. Someday, with an industrious collector, 

 I should like to start from Hardy and never stop until we had gone 

 into the panhandle of Texas. Limestone bluffs and coves are on 

 every hand. There could be new shells every day. With the ex- 

 ception of Simpson's visit to Kiowa, in the Indian nation, and my 

 own trips, the rocks were probably never scratched. 



The following is my catch, named with much assistance from Mr. 

 Pilsbry, numbered after the Pilsbry check list : 



9a. Helicina orbiculata tropica Say. DeKalb, Lanesport, Rocky 

 Comfort, Gilham, Mena. 



