1915.] NATURAL SCIENCES OF PHILADELPHIA. .519 



Pimephales notatus (Rafinesque). 

 Notropis hudsonius selene (Jordan). 

 Esox yermiculatus Valenciennes. 

 Percopsis omiscomaycus (Walbaum). 

 Eupomotis gibbosus (Linnseus). 

 Micropterus dolomieu Lac6pede. 

 Perca flavescens (MitchiU). 

 Peroina caprodes zebra (Agassiz). 



Mattawa, Ontario. 



Mr. Horace H. Burton made a small collection at this locality 

 and northward along the Ottawa River to Lake Temiskaming, in 

 October of 1913. Excepting the trout and Rana septentrionalis, 

 which were obtained in Lake Temiskaming, all the others were 

 taken in the Ottawa River at Mattawa. Besides the following 

 fishes Mr. Burton also secured examples of Cambarus bartoni, Nedurus 

 maculosus, Diadophis punctatus and Thamnophis sirtalis. 

 Salvelinus fontinalis (MitchiU). 



Several small ones. 



Semotilus bnllaris (Rafinesque). 



One young example. 

 Catostomus commersonnii (Lac6pMe). 

 Small one. 



Boleosoma nigrum (Rafinesque). 



Many examples, though all small. 



