184 BEPOET OF STATE GEOLOGIST. 



Dr. Gilbert (23, '84, 200) records it from the -East White River, in 

 Lawrence County. To what extent it occurs in Lake Michigan I do 

 not know. Dr. H. M. Smith (4, '92, 213) says that this species may 

 be distinguished from M. duquesnei by the much larger and white fins, 

 those of J/, duquesnei being orange and red. 



MOXOSTONA DUQUESNEI (LcS.). 



Bed-horse; White Sucker. 



M. macrolepidotmn var. duquesnei, Jordan and Gilbert, 1882, 8, 140 ; M. 

 duquesnei, Jordan, 1888, 7', 173 ; 1885, li^ pi., 222 A. 



Body from stoutish to elongate, the depth varying from three and one- 

 half to four in length ; head rather long, its length in that of body from 

 four to five times ; profile arched to the snout, then descending abruptly 

 to the large, inferior mouth ; dorsal fin with tAvelve to fourteen rays, its 

 free edge nearly straight ; upper lobe of the caudal about the length of 

 the lower or shorter ; anal I, 7 ; scales, 5-45-6 ; color of upper 

 parts olive or gray, of the lower parts silvery ; the lower and tail 

 fins are usually red or orange, at least in adult age; maximum length 

 about two feet Distributed from New York to Georgia and Dakota. 

 It is not certain that the form described above is different from that 

 found in the Chesapeake region, M. macrolepidotum. In Indiana the red- 

 horse is one of the C(-)mmonest fishes. Evansville (^, '88, 166); Law- 

 rence County (23, '84, 200); Clark and Ohio counties (23, '88, 56); 

 Franklin County (5, No. 2, 5) ; Monroe County (1, '85, 410) ; Vigo 

 County (16, 94) ; Marion County (1, '77, 377) ; Kankakee River, Ply- 

 mouth, (4, '88, 155j ; Cass and Carroll counties (4, '88, 155); Knox, 

 Gibson and Owen counties (4, '88, 162, 166); Winamac, in Tippecanoe 

 River. Eel River basin, (4, '94, 36). Other localities are given by Eigen- 

 mann and Beeson (24, '93, 84) This species is used as food, and its 

 size and abundance give it some importance, but its flesh is not of very 

 good quality, and is full of small bones. It inclines to clear streams. 

 Its spawn is deposited in the month of May, and to accomplish this the 

 fish ascends the smaller streams. The food of the red-horse, as deter- 

 mined by Forbes (14, '88, 442), consists almost wholly of mollusks, prin- 

 cipally of univalves. Crustaceans were absent, while insects were present 

 in small amounts The young eat entomostraca. In some cases nearly 

 the whole of the food of the young was found to consist of protozoa of 

 different genera and species (14, No. 3, 72). 



