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THE AMERICAN NATURALIST [Vol. XLI 



and Newtown, Bristol, and Mill Creek, Tullytown and Tullytown 

 Creek, and Morrisville, Bucks Co.; Dingmans Ferry, Pike Co. 

 (H. T. Wolff). In the Susquehanna from the Conestoga Creek, 

 Lancaster Co. (E. D. Cope); the Loyalsock near Lopez, Sulhvan 

 Co.; Oetoraro Creek (E. D. Cope). Erie, Erie Co. (C. Rutter). 



Micropteras dolomieu Lacepede. Small-mouthed Bass. — 

 Youghiogheny River (E. D. Cope) and the Allegheny at Corydon, 

 Warren Co., and met with as far as Olean, N. Y. 



Micropteras salmoides (Lacepfede). Large-mouthed Bass. — 

 Warren Co. 



Percid.*: 



Stizostedion vitreum salmoneum (Rafinesque). Blue Pike. — 

 Warren Co. (Dr. J. H. Slack), Beaver River (E. D. Cope), and 

 Youghiogheny River (E. D. Cope). 



Stizostedion canadense griseum (De Kay). Sauger. — Warren 

 Co. (Dr. J. H. Slack), Beaver River (E. D. Cope), and Youghi- 

 ogheny River (E. D. Cope). 



Perca flavescens (Mitchill). Yellow Perch. — Delaware River 

 in Darby Creek, Delaware Co.; river and Pennypack Creek at 

 Holmesburg, and Poquessing Creek at Torresdale, Philadelphia 

 Co.; Neshaminy Creek at Croydon, Hulmeville, Neshaminy 

 Falls and Newtown, Mill Creek at Bristol, Tullytown Creek at 

 Tullytown and Morrisville, Bucks Co. In the Susquehanna basin 

 from the Conestoga Creek in Lancaster Co. (E. D. Cope). 



Percina caprodes (Rafinesque). Log Perch. — Type of Perca 

 nehulosa Haldeman examined, Youghiogheny River (E. D. Cope) 

 and Kiskiminitas River. 



Hadropteras macrocephalus (Cope). Long-headed Darter. 



— Cotype of Etheostoma macrocephalum Cope examined. 

 Hadropteras peltatus (Cope). Shielded Darter. — Type of 



Etheostoma peltatum Stauffer, in Cope, examined. 



Diplesion blennioides (Rafinesque). Green-sided Darter. — 

 Beaver River (E. D. Cope). 



Boleosoma nigram (Rafinesque). Johnny Darter. — Cotypes 

 of B. olmstedi brevipinnis Cope examined. 



Boleosoma nigrum olmstedi (Storer), Tessellated Darter. 



— Delaware River basin in the Brandywine tributaries at Kennett 



