276 PROCEEDINGS OF THE ACADEMY OF 



Dec. 20th. 

 Vice President Bridges in the Chair. 



Seventeen members present. 



The following papers were presented for publication and referred to 

 committees. 



" Catalogue of the Cold-blooded Vertebrata of Michigan." By E. D. 

 Cope. 



" Descriptions of six new Western Asiatic Unionidae." By Isaac 

 Lea. 



" Notes on some species of Birds from South America." By John 

 Cassin. 



Dec. 27th. 



Mr. Jeanes, in the Chair. 



Twenty eight members present. 



On report of the respective Committees, the following papers were 

 ordered to be published. 



Partial Catalogue of the Cold-blooded VERTEBRATA of Michigan. 



Pt. I. 



BY PROF. E. D. COPE. 



The material whence the present synopsis is derived, is a? collection sent to 

 me by Prof. Manly Miles, of Lansing, composed of specimens belonging to the 

 Flint Scientific Institute, to the State Agricultural College, and to the State 

 Collection. As we have but few exact synopses of local collections made at 

 the Northwest, it is hoped the following list may prove of value in indicating 

 the general character of this part of the fauna. 



DERMOPTERI. 



Ichthyomyzon argenteus Gird. Petromyzon Kirtland. 



GANOIDEI. 



Lepidosteus huronensis. Numerous specimens. Saginaw Bay. 



Lepidosteus oculatus Winchell. Pr. Ac. Nat. Sci., 1864. Duck Lake, 

 Calhoun Co. 



Amia c a 1 v a L. Specimens with and without the caudal ocellus. 



TELEOSTEI. 



NEMATOGNATHI. 



Ictalurus gracilis Gill. Pimelodus gracilis Hough. 



A specimen with narrower head and larger eye than the caerulescena 

 assigned to the above species with doubt, on account of the very imperfect 

 descriptions given, 



Ameiirus c u p r e u s. Oakland Co. 



Although Prof. Gill has assigned not more than nine branchiostegals to this 

 genus, and I find ten in five specimens, and thongh Prof. Kirtland gives an 



[Dec. 



