172 Bean and Weed — Fish Fauna of the District of Columbia. 



Schilbeodes gyrinus (Mitchill). 



A specimen of this little Mad Tom was taken in Little Beaver Dam 

 Branch, Anacostia River, May 25, 1911, by Mr. Weed. 



Pimephales notatus ( Rafinesque). 



BLUNT-HEAD MINNOW. 



Exceedingly common in the pools of all the swifter streams about 

 Washington. Mention of this species was omitted by error from the pre- 

 vious list. 



Notropis arge (Cope). 



Many specimens provisionally identified as this species have been taken 

 in the lower portion of Cabin John Run. These specimens may prove to 

 be Notropis photogenis if the two species are finally proven to be specific- 

 ally separable. These fishes may have been introduced from the Ohio 

 River drainage. 



A very large number of fishes of many species were taken in Cabin 

 John Run December 4, 1909, and March 19, 1910. These hauls were 

 made with a twenty-foot bag seine (Baird collecting seine) under the 

 Chesapeake & Ohio Canal. The haul that was made in December took 

 many thousand fish, about half of which were Pimephales notatus and 

 the rest various small minnows. All the fish were unusually silvery in 

 color. 



Notropis amoenus (Abbott). 



This species has been taken in moderate numbers in Cabin John Run 

 and in some of the other streams flowing into the Potomac River. It is 

 listed by Evermann and Hildebrand from the Mattapony River, Virginia.* 



Ericymba buccata Cope. 



This common western minnow occurs in fairly large numbers in the 

 lower portion of Cabin John Run. It was probably introduced in the 

 upper portion of the Potomac River by the U. S. Bureau of Fisheries. 



Lepomis cyanellus Rafinesque. 



This western sunfish occurs in very large numbers in pools in the river 

 in the neighborhood of Chain Bridge. Few large specimens are seen but 

 very many ranging from one to three inches in length. Ten specimens, 

 each about three inches in length, were caught in considerably less than 

 ten minutes, in a small pool. All were taken on hook and line, using a 

 single small piece of angleworm as bait. This species was probably intro- 

 duced into the upper portion of the Potomac River. t 



* Proc. Biol. Poc. Wash., vol. XXIII. p. 158. 



t First published record of L. cyanellus, Bean ami Weed. Proc. V. S. Nat. Mus.. 40. 

 p. 376, plate 50. 



