76 Cincinnati Society of Natnrat History. 



CONTRIBUTIONS TO THE ICHTHYOLOGY OF OHIO. 



No. I. 



By Dr. James A. Henshall. 

 Read at the Society's Scientific Meeting, July 3, 1888. 



The present paper is the first of a series intended to place on 

 record the fishes of Hamilton County, Ohio, and eventually those 

 of the entire State, so far as possible. 



During the latter part of April, and in the month of May, 1888, 

 Prof. Charles H. Gilbert and the writer, assisted on several occasions 

 by Mr. Clough Anderson, explored the Little Miami River and its 

 tributaries at several points between Loveland and its mouth; Mill 

 Creek and tributaries between Lockland and Elm wood; and Ross 

 Lake. 



The writer also examined the catches of market fishermen along 

 the Ohio River, between the mouth of the Little Miami River and 

 Fulton, and at the latter place had a fyke-net set regularly by Mr. 

 C. M. Weeks. 



This paper records the results of these explorations. Most of 

 the specimens were taken with a short, fine-meshed Baird seine, 

 and a complete series of them, with the exception of those of very 

 large size, is now in the Museum of the Society, and duplicate 

 sets have been retained for the Cincinnati University and the 

 United States National Museurn. 



All of the species named in this catalogue have been examined 

 and identified either by Prof. Gilbert or myself. 



Where there have been recent changes in the nomenclature of 

 species I have added the best-known synonyms. 



As will be seen, this paper records seventy species, distributed 

 among fourteen families. 



Family I. — Polvodontid/k. 



1. PoLVODON SPATHULA Walbaum. Spoon-bill Cat. {Folyjdon 

 folium Kirtland.) Common m the Ohio River. 



Family II. — Acipenserid.i",. 



2. AciPENSER RUBicuNDUS LeSueur. Sturgeon. Abundant 

 in Ohio River. 



