COLD-BLOODED VERTEBRATES. 39 



Lepomis auritus i Linnaeus; — River Sun-fish. 



Abundant, and mostly above tidal regions. Brandywine 

 Creek, Chad's Ford ; Chester Creek, West Branch near Mark- 

 ham and Concordville, near Wawa ; Ridley Creek, Media; 

 Darby Creek, Broomall, Collingdale, Whetstone Run, Cobb's 

 Creek, Naylor's Run. 



Eupumotis gibVjosus (^ Linnaeus) — Sun-fish. 



Common in most all waters. Brandywine Creek, Chad's 

 Ford, Painter's Run, Brandywine Summit; Chester Creek, 

 Wawa, Cheyney ; Ridley Creek, Media; Darby Creek, Col- 

 lingdale, Whetstone Run, Cobb's Creek, Tinicum Island, 

 Long Neck, Lester. 



Micropterus dolomieu I'Lacepedej — Small-mouth Bass. 



This species was originally introduced, and is now to be 

 found in various stocked waters. Brandywine Creek, Chad's 

 Ford; Darby Creek, Addingham. Whetstone Run. 



Perca flavescens fMitchill; — Yellow Perch. 



Occasional in Darby Creek. I found it near Lester on Tini- 

 cum Island. 



Boleosoma nigrum olmstedi (Storer) — Darter. 



Very abundant in most all waters, especially on gravel bot- 

 toms. Brandywine Creek, Chad's Ford; Painter's Run, 

 Brandywine Summit ; Chester Creek, West Branch at Mark- 

 ham and Concordville, near Wawa, Green Creek, Cheyney ; 

 Ridley Creek ; Crum Creek, Swarthmore, first small run 

 above Reese's Run ; Darby Creek, Collingdale, Collar Brook, 

 head of north branch of Langford's Run, Cobb's Creek, Nay- 

 lor's Run, Tinicum Island, Lester. 



Roccus lineatus (Bloch ) — Striped Bass. 



Frequent m the Delaware River. Marcus Hook, Chester, 

 Darbj- Creek, Tinicum Island. 



Morone americana ( Gmelin ) — White Perch. 



Abundant in the Delaware and its tidal reaches. Marcus 

 Hook, Chester and Tinicum Island. 



