1920.] NATURAL SCIENCES OF PHILADELPHIA. 389 



Brevoortia tyrannus (Latrobe). School of small ones in Indian 

 River just below Millsboro. 



Anchovia mitchilli (Valenciennes). Mouth of stream from Dags- 

 boro. 



Schilbeodes gyrinus (Mitchill). East and West Branches ofNanti- 

 coke. 



Ahramis crysoleucas (Mitchill). West Branch of Nanticoke, Cedar 

 Creek at first dam, Millsboro and lower Herring Creek. 



Notropis hudsonius amarws (Girard). West Branch of Nanticoke. 



Notropis chalybceus (Cope). Cedar Creek at first and second 

 dams, and lower Herring Creek. 



Erimyzon sucetta ohlongus (Mitchill). East Branch of Nanti- 

 coke. 



Anguilla rosirata (Le Sueur). West Branch of Nanticoke and 

 fresh pond at estuary of Herring Creek. 



Esox americanus (Gmelin). West Branch of Nanticoke and 

 Cedar Creek at upper dam. 



Esox tridecemlineatus Mitchill. Cedar Creek at both dams, 

 Millsboro and Herring Creek headwaters. 



Umbra pygmcea (De Kay) . West Branch of Nanticoke. 



Fundidus majais (Walbaum). Estuaries from Dagsboro and 

 Herring Creek. 



Fundulus heteroclitus macrokpidotus (Walbaum). Localities as 

 for last species, and in ditch at Ocean View. 



Fundulus diaphanus (Le Sueur). Fresh ponds along Herring 

 Creek estuary. 



Lucania parva (Baird). Ocean View and Herring Creek, also the 

 next. 



Cyprinodon variegaius Lacepede. 



Gambusia affinis (Baird and Girard). Lower dam on Cedar 

 Creek, Millsboro, Ocean View and Herring Creek. In ponds and 

 often in fresh water. 



Memdia benjlUna (Cope). Stream from Dagsboro and lower 



Herring Creek. 



Menidia menidta notata (Mitchill). Estuary from Dagsboro 



stream. 



Apeltes quadracus (Mitchill). Millsboro. 



Aphredoderus sayanus (Gilliams). West Branch of Nanticoke 

 Creek. Brown's Branch, upper Cedar Creek and first dam. 



Trachinotus carolinus (Linne). The only fish we found in the surf 

 at Bethany Beach. Along the shores of Delaware Bay, at Slaughter 



