/^ neinift(.sciata, OcKay, New \'oik Fauna, Fislics, p. 10. 

 pi. 50, fig. 162. 



— zebra, (Mheostoina) , Agass. Lake Superior^ p. o08, 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 x4icadenj_v, which was caught in the 

 Pamunkey Creek. 



ArAi». Coll. 



J30LK0kS0MA, UoKay. 



B. 0LM61LUI Agassis, 



The Tessellated Darter. 



l)ody cylindrical, ta})ering, covered with rough scales, 

 which are moderately large for the size of the fish. Head 

 small; nape smooth, and depressed, as if strangulated. Eyes 

 large, contiguous. The pointed pectorals and the sjuall 

 ventrals close together. The caudal fin, which is a powerful 

 instrument, is even. Olive ])rown, with from five to seven 

 oblong, squarish, black spots on the l)ack along each side of 

 the dorsal fin. Seven to nine similar spots along the lateral 

 line: a ••sliort, vertir'al. black line li-om the eye obliijuely for- 

 ward, and a similar black da«b from the eye to the nose: nar- 

 row bars on the rays. 



Fhi-rays:— D. U. 14: P. l;): V. I. 5: A. 10: C. ]7^ 



fJiJ/cosfoiiia ohiis/cdi, Storer, Synopsis, [i. - 



Boleosoma oh,tytc.(li\ Agass. hake Sup. p. 20'.l. 



Z>. fenseHotnni , DeKay, New York Fauna, Pish, it. iMi. pi. 

 20, rig. 57. 



Estrella alroniac/ilalo. drirard, I'roc. Pliihid. Acad. 1859, 

 p. (15. 



This beautiful and graceful little fish inhabits the stony 

 i)arts of our shallower streams. It is fond of settling on the 

 flat rocks wdiere the water is .shalh)w. and darts with such 

 rapid impulse as scarcely to be traceable by the eye. Being 

 of such small size it is not used for food, but is preyed u})on 



