FISHES OF LORAIN COUNTY, OHIO. 23 



Very rare. I have but two records, and it is almost unknown 

 to the fishermen here, though common in the eastern part of the 

 lake. 



Family XII. PERCOPSID.^. The Trout-perches. 



53. Percopsis guttatus Agassiz. Trout-perch. 



[Jord. Man. 195. O. St. Sutv. 103.]^ 



Head conical, naked, scales rough, an adipose fin present, 

 silvery, upper parts marked with dark spots made up of minute 

 dots; length of largest taken 4 inches, but Jordan gives 10 inches 

 as the length. 



Common in Lake Erie, Black River, and Beaver Creek this 

 year (1891-2). I did not detect it before, and do not think it was 

 " common. " Specimens taken in the latter part of April show well- 

 developed spawn. 



Family XIII. CYPRINODONTID^. The Killi- 



FISHES. 

 54- Fiiiiduliis diaphaims (Le Sueur). Barred Killi- 



FISH. 



[Jord. Man. 203. O. St. Suvv. 104.] 



Rather slender, depressed in front, compressed behind, rather 

 light colored, with 8 to 16 (25 in eastern forms) narrow, dark cross- 

 bands on sides, dorsal fin soft and set far back. Length 3 inches. 



Taken once near Lorain. I found this little fish common near 

 Huron and Put-in-Bay in the soft-bottomed, grassy inlets. One 

 was seined out of open water in Put-in-Bay. All specimens taken 

 here show broader, darker markings than eastern forms, several 

 having only 8 bars on the sides. 



Family XIV. UMBRIDtE. The Mud-minnows. 



55. Umbra limi (Kirtland). Mud-minnow. 



[Jord. Man. 212. O. St. Surv. 107.] 



A handsome, thick-set fish, dark greenish olive with mottled 

 sides, a distinct black bar at base of tail, fins all soft, dorsal set far 

 back. Length 5 inches. 



Very common in the soft black mud in sloughs and bayous, 

 also very hard to get hold of in said mud. Early in the spring they 

 may sometimes be found in large numbers in the channels that run 

 through the snipe marshes, and are even found in the open streams. 



