214 PROCEEDINGS OF THE ACADEMY OP 



RADIOLITES, Lam. 



Subgenus Tamiosoma, Conrad. 



R. gbbgaria, Conrad. Explorations and Surveys for Rail-road route to 

 Pacific, vi. 72, iv. 18. This fossil is characteristic of the Cretaceous forma- 

 tion in California. 



October 4th. 



Mr. Lea in the Chair. 



Eighteen members present. 



The following papers were presented for publication : 

 " On a blind Silurid from Pennsylvania," and " On the Characters 

 of the higher groups of Reptilia squamata, &c." By E. D. Cope. 



October 11 th. 

 Dr. Bridges, Vice-President, in the Chair. 

 Fifteen members present. 



October ISth. 



Dr. McEuen in the Chair. 



Nineteen members present. 



The following paper was presented for publication : " Fasti Orni- 

 thologise." No. 1. By John Cassin. 



October 2bth. 

 Dr. Bridges, Vice-President, in the Chair. 



Fourteen members present. 



On report of the respective committees, the following papers were 

 ordered to be published : 



Synopsis of the PLETJRONECTOIDS of the Eastern Coast of North America, 



BY THEODORE GILL. 



In the present brief article, an analytical synopsis distinguishing the genera 

 of east coast Pleuronectoids, already named, is submitted, and the different 

 names under which the species have been described are referred to the syno- 

 nymy of the species to which they are supposed to belong ; and, in one case, 

 {Reinhardtius hippo glossoides) where the decision of the synonymy would in- 

 volve the nomenclature and geographical distribution of two widely distinct 

 forms, the synonymy has been quite fully discussed. If the premises taken 

 are correct, the genera herewith enumerated are the only known forms as yet 

 entitled to a place in the Fauna of the East Coast. If, on the other hand, 

 that view against which I have contended is the true one, the genus Glyp- 

 tocephalus, an ally of Pleuronectes, must be added, and the name Reinhardtius 

 hippo glossoides replaced by another. 



[Oct. 



