Lake Maxinkuckee, Physical and Biological Survey 337 



Head 4.25 ; depth 3.25 ; eye 4.25 to 6 ; snout 2.5 to 3 ; D. 12 ; A. 

 7 : V. 9 ; scales 36 to 42-15. 



Body oblong, compressed, becoming gibbous with age, the ante- 

 dorsal region more or less elevated in the adult; head short and 

 stout, the interorbital space wide; scales closely imbricated and 

 more or less crowded anteriorly; mouth small, somewhat inferior, 

 the upper lip well developed and freely protractile, the lower small, 

 infolded A -shaped in outline, plicate, with 12 to 20 folds on each 

 side. 



Color varying greatly with age; back usually dark olivaceous, 

 the sides with pale streaks along the rows of scales; belly white; 

 young with a broad black lateral band bordered above by paler, 

 becoming broken up later into a series of blotches which sometimes 

 assume the form of broad transverse bars; often the band is jet 

 black and ends in a jet black spot at base of caudal. As the fish 

 gets older this black band becomes less distinct and finally disap- 

 pears, leaving the color nearly uniform dusky with a brassy or 

 coppery luster ; the fins are dusky, the lower ones sometimes tinged 

 with reddish. 



A young example 2 inches long, taken in Lost Lake July 31, had 

 the following colors in life: 



Back greenish-olive, side with a broad black band beginning as 

 a large black spot at base of caudal and running along side a little 

 above axis of body to tip of snout; under parts and lower part 

 of side silvery-white, with golden or coppery wash; caudal pale 

 brick-red; dorsal dark, particularly on the anterior 2 or 3 rays; 

 all the other fins pale ; pectoral with a thin dark edge. An adult 

 8 inches long was rich greenish-olivaceous, with rich brassy ir- 

 idescence; fins all greenish brassy, no trace of black lateral band. 



The sexual differences are usually well marked, the males in 

 spring with large tubercles on the snout and the anal fin more or 

 less swollen and emarginate. 



14. SPOTTED SUCKER 



MINYTREMA MELANOPS (Rafinesque) 



This species, known locally as Black Sucker, is not common in 

 these lakes. The only specimens we have seen were four examples 

 seined in Lost Lake, October 21, 1913, by some commercial fisher- 

 men who undertook to "rid Lake Maxinkuckee of carp." These 

 specimens were 14 to 16 inches in length. 



This fish is also known as Winter Sucker. It attains a length 

 of a foot to 18 inches and, as a food fish, is one of the best of the 

 family, the flesh being firm, flaky and particularly sweet and palat- 



