42 PROCEEDINGS OF THE ACADEMY OF [Feb.,. 



other material has been secured by the writer largely, though often 

 with the assistance of others whom I have acknowledged elsewhere. 



Petromyzon marinus Linnseus. 



Delaware River at Torresdale, Philadelphia County. I also^ 

 examined a young one from Goldsboro, York County, in the posses- 

 sion of Mr. P. Hertzog. 



Ichthyomyzonconcolor (Kirtland;. 



Cherry Run, tributary to Crooked Run, and McKenny Run, 

 Indiana County. 



Acipenser brevirostrum Le Sueur. 



Delaware River at Torresdale, Philadelphia County. I also found 

 one at Bristol, Bucks County, on May 3, 1908. 



Though I have examined examples of A. rubicundus at Erie and 

 in the pounds near by, none were obtained for our collection. 



AmiatUS calvus (Linnaeus). 



Erie. A few were taken in the pounds in 1907. 

 Pomolobus pseudoharengus (Wilson). 



Abundant in Scott's Creek, Bucks County. • 



Coregonus clupeaformis (Mitchill). 



Erie. 



Leucichthys artedi (Le Sueur). 



Erie. 



Salvelinus fontinalis (Mitchill). 



Brandywine tributary near New Garden, Chester County; Trout 

 Run, Lancaster County; Sugar Valley Run, Mifflin County. 



Anguilla chrisypa Rafinesque. 



Long Neck at Tinicum Island, Delaware County; Valley Forge 

 and Gladwyne, Montgomery County; Neshaminy Creek near 

 Langhorne, Bridgetown, Etterton, Long Pond, Guinea Creek, Scott's 

 Creek, Bucks County; McCall's Ferry, Lancaster County; Juniata 

 River at Newton Hamilton, Mifflin County. 



Campostoma anomalum (Rafinesque). 



McKenny, Home, Burnhamer, Rock, Saltgiver, Besnham, Broad 

 Head, Smitten, Martin's, Mud Lick, Smicksburg, Groft's and 

 McCormick's Runs, Ross Run and branch, Elders and Little Runs, 

 Pickering Run and small branch, feeder to Crooked Run, Cowans- 

 hanoc, Grant and Pine Townships, tributary of North Branch of 

 Two Lick Creek, Pine Creek and Marion Branch, Susquehanna 



