McAtee and Weed — Fishes of Vicinity of Plummers Island, Md. 11 



parts of the river. A specimen taken in Dead Run, May 9, 1907, had 

 only damselfly nymphs in the stomach and intestines. 



Leuciscus vandoisulus Cuvier and Valenciennes. — Common in all the 

 large creeks, except Dead Rim where it has not yet been taken. 



Notemigonus crysoleucas (INIitchill). — Roach, Mill Roach. Common 

 in the canal and river, also taken in Cabin John Run. 



Pimephales notatus (Rafinesque). — Abundant in shallow parts of 

 river and about the mouths and in the lower reaches of creeks. 



Notropis procne (Cope). — Taken only in Cabin John Run. 



Notropis hudsonius amarus (Girard). — Shiner, Smelt. Common in 

 most of the creeks, in shoal portions of the river and in the canal. 



Notropis arge (Cope). Specimens provisionally identified as this 

 species have been collected in Cabin John Run. 



Notropis amoenus (Abbott). — Common in most of the creeks and in 

 Plummers Island channel. Taken in the canal February, 1914. 



Notropis photogenis (Cope). — Plummers Island channel October 15, 

 1905. Rock Run, March 10, 1912. 



The differential characters of the three preceding species are so obscure 

 and recent investigations have thrown so much doubt on the subject that 

 we are unable to decide whether the specimens should be referred to one 

 species or to three or more. 



Notropis analostanus (Girard). — Has been taken in Cabin John, 

 Scotts and Turkey Runs and in Plummers Island channel. 



Notropis cornutus (Mitchill). — This species has been collected in 

 Plummers Island channel, and in Rock, Cabin John and Turkey Runs. 

 Specimens taken in Rock Run March 17, 1912, exhibited the breeding 

 colors. 



Ericymba buccata (Cope). — Collected in Plummers Island Channel 

 July 14, 1906, about 5 years before it was recorded as an inhabitant of 

 this region. Also taken in Cabin John and Turkey Runs. 



Rhinichthys cataractae (Cuvier and Valenciennes). — Collected in 

 Rock, Cabin John and Scotts Runs. Not rare. Taken in the canal 

 February, 1914. 



Rhinichthys atronasus (Mitchill). — An ubiquitous species, most 

 common in creeks, especially their upper courses. 



Hybopsis kentuckiensis (Rafinesque). — This species has been taken 

 in Plummers Island channel, in the canal and in Cabin John Run. 



Exoglossutn maxillingua (Le Sueur). — Tongue chub, Black chub. 

 Nigger perch. Common in Rock and Cabin John Runs. 



Anguillid^. 



Anguilla rostrata (Le Sueur). — Eel. Abundant in river and canal, 

 goes little beyond the mouths of creeks. The largest specimen seen was 

 3 feet long. 



DOROSOMATID^. 



Dorosoma cepedianum (Le Sueur). — Mud shad. Single specimens 

 have been taken in Plummers Island channel (October 15, 1905), and 



