114 



above the middle of the body by ferruginous spots; these 

 spots are more sparse and distinct below the lateral line;, 

 body beneath and in front of the ventral fins blood-red;. 

 throat bluish-white. Two bluish-white undulating lines 

 from head to tail. The long, broad appendix, rounded be- 

 hind, is of a uniform black color. Length, 5 to 7 inches. 



Fin-rays:— D. 10 to 11, 9 to 11; P. 11 to 12; V. 1. 5; A. 

 3. 9 to 10; C. 18. 



Lahrus auritus, Linn. 



P. appendix, Storer, Synops. p. 42. 



This is the common Sun-Fish of our fresh water streams, 

 sometimes attaining to a length of 6 inches. 



It is eaten by the farmers of the interior of the State, and 

 is always acceptable as an article of food. 



Acad. Coll. S. L 



PERCINA. 

 P. C5 



Body oblong, cylindrical. Head small, sloping; eyes 

 rather large; lower jaw shortest; gape moderate. The 

 general color is pale greenish-olive, lighter towards the ab- 

 domen. The body is barred with black, transverse bands, 

 extending from the back towards the sides; they are alternate- 

 ly longer and shorter, none are found on the lower third of 

 the sides. A dark round spot at the base of the caudal; 

 dorsals dark brownish; caudal fin with four or five vertical 

 bands. Length, 2 to 4 inches. 



Fin-rays:— D. 13. 15; P. 15; V. 1. 5; A. 12; C. 15. 



Pileoma semifasciata, DeKay, New York Fauna, Fishes, 

 p. 16, pi. 50, fig. 162. 



— zebra, (Etlieostoma) , Agass. Lake Superior, p. 308, pi. 4,. 

 fig. 4. ' 



Inhabits tributaries of the Potomac river South of Wash- 

 ington, and it occurs also in the Chesapeake and Ohio CanaL 

 One specimen is in the Academy, which was caught in the 

 Pamunkey Creek. 



Acad. Coll. 



