No. 481] 



PENNSYLVANIA FISHES 



19 



Square, Mendenhall and opposite Chadds Ford, Chester Co.; 

 Brandywine at Chadds Ford, Ridley, Darby, and Cobb's Creek, 

 and Tiniciim, Delaware /7!%s. 

 Co. ; Pennypack at Hat- // / 'X 



boro, and Jenkintown, 



Montgomery Co.; League * 

 Island, Tacony Creek, 4 

 Frankford Creek, Penny- 

 pack Creek at Holmes- 

 burg and Bustleton, and 

 Poquessing Creek at ^ 

 Torresdale, and opposite 

 Cornwells, Philadelphia I 

 Co.; Neshaminy Creek 

 at Croydon, Newportville, 

 Hulmeville, Neshaminy 

 Falls, Frog Hollow, and 



Newtown, Mill Creek at - ^ 



Bristol, TuUytown Creek ' ; vj^ 



at TuUytown, and Morris- ^ ' 



ville, Bucks Co.; Diiiu- 

 mansFerry, Pike Co. (II. 

 T. Wolff). In the Sus- 

 quehanna basin I have it 

 from the Octoraro (Veek 

 at Nottingham in Chester 

 Co., the Loyalsock near 

 Ix>pez, SuUivan Co., and 

 the Pequea at Paradise, 

 Lancaster Co. (J. S. Wit- 

 mer), besides the type of 

 Percina minima Halde- 

 man. The accompany- 

 ing figure represents a tstoVer). 

 remarkable variation of 



fin-rays seen in an example I secured at Holmesburg, Phila- 

 delphia, ^September 11th, 1898. Although I have not seen the 

 type of Boleosoma oesopm Cope my Loyalsock examples go far to 

 establish it as a pure synonym of this fish. 



