Clarke — Oneonta, Ithaca and Postage Gteoups. 



67 



Clwnetes scitula (c). 



Atrypa reticularis, both large ;in<l small forms (cc). 



Liorhynchm mesacostalis (c). 



Cyrtin a Ha m i Iton ensis. 



Tropidoleptus carinatus. 



i \ il inopteria perstrialis (cc). 



.1. Boydi. 



Liopteria Sayi. 



Paloeoneih fecund a. 



P. emarginata. 



Autodetus. 



Diaphorostoma sp. 



Carapace of Tropidoearis f 



IIP. The first appearance of Spi/rifer rnesastrialis ; elevation 585 feet 

 above the South Otselic hotel; near the top of the hill, on a tributary to the 

 main creek.* t 



Spirifer viesastrialis, large and typical (cc). 



" " small variety resembling S. Tullius. 



Rh ynclionella f eximia f 

 ., Liopteria Greeni. 



Tentaculites sp. nov. ; a long, slender species, very finely marked with 

 delicate, subequal rings ; not observed elsewhere (cc). 



Station IV. Mineral Spring creek, in the town of Pitcher, Chenango 

 county, running from Pitcher Springs westward and emptying into the Otselic 

 valley. The opening of this ravine on the Pitcher highway is about forty 

 feet below the hotel at South Otselic and four miles south of that place. 

 The section here, from the mouth of the ravine to its commencement, is 14<» 

 feet in height, the rocks, thin sandstones with interbedded sandy shales. The 

 lower ten feet is a Spirophyton sandstone without other fossils. The beds 

 above contain associations of fossils at intervals, not varying greatly in their 

 composition. The fauna as collected from the entire series of the fossil- 

 iferous bands is as follows : 



Tropidoleptm carinatus, common in the lower layers. 



Productella spvnulicosta (c). 



Cyt tina Hamiltonensis (c). 



Clwnetes lepida (c). 



Ch. scitula, very large variety (cc). 



* This locality was not seen by myself and th ; list of fossils is driwn from specimens collected by Professor Pros9er. 



