142 THE NAUTILUS. 



usually cling for preservation. A more western range for a number 

 of the eastern species would be expected, and more thorough and ex- 

 tended researches would probably show a much greater distribution 

 westward. 



In the woods just east of Tallahassee, among the leaves around the 

 foot of some large magnolias and oaks, a number of Polygyra pus- 

 tula and P. hopetonensis and a few Omphalina Icevigata and Strobilops 

 labyrinthica were found. Near by in an old decayed log were found 

 Glandina truncata (young), Vitrea indentata, Zonitoides arboreus, 

 Z. milium and Philomycus carolinensis. 



At Jackson's Bluff on the Ocklocknee river, 24 miles west of Tal- 

 lahassee, is a fine exposure of the Chesapeake miocene. Here a few 

 favorable logs and stones were hastily turned over ; under the lime- 

 stone was found Helicina orbiculata and Glandina truncata, while 

 from the logs were taken Omphalina Icevigata, Gastrodonta sup- 

 pressa, a form in which the umbilicus is but slightly perforate, 

 G. demissa, Vitrea indentata, Helicodiscus lineatus and Polygyra 

 inflecta; for the latter species this is a more southern locality than 

 has previously been given. 



Two miles below Jackson's Bluff is Larkin's Bluff; under some 

 boards and wood near the Bluff only Polygyra hopetonensis was found ; 

 this is the most western locality from which I obtained this species. 



About half a mile below Bailey's Ferry, on the west side of the 

 Chipola river, 11 miles westof Blountstown, is the farm of Mr. J. P. 

 McClellan; here the Chipola bed comes to the surface and the shells 

 are ploughed out in the field. After obtaining a fine lot of the Chipola 

 fossils and several boxes of the marl from which the clay and sand 

 had been washed through a seive, I turned over an old log, just as 

 I was leaving, and found Gastrodonta intertexta, the strongly carin- 

 ated form, but with the usual internal callus. G. demissa, the most 

 southern locality from which this species has been recorded. Poly- 

 gyra appressa var. perigrapta, formerly recorded only from the 

 mountainous portions of Tennessee and adjacent States, P. injiecta, 

 and P. pustulo, which has not before been reported west of Cedar 

 Keys. In crossing the field near by I found an immature specimen 

 of P. albolabris. 



While waiting for the steamboat at Blountstown a short stroll 

 was taken through the woods ; a search beneath the oak logs dis- 

 closed a number of Polygyra, fallax. It seemed strange how these 

 were confined exclusively to the oak; numerous pine logs were turned 

 over, close by the oak, and all conditions seemed equally favorable, 

 but not a single shell was obtained. P. fallax has not to my knowl- 

 edge been recorded south of northern Georgia. Under the bark of 

 logs, in the drift along the Apalachicola river, was the ever present 

 Zonitoides arboreus. 



As the steamboat did not connect with the east-bound train, I was 

 obliged to so to Marianna for the night. I had noticed from the car 



