The Cisco of Lake Tippecanoe 



The spawning of the lake herring tai<es place in the fail, 

 chiefly in November. 



The average weight probably does not exceed a pound, and 

 the maximum weight 2 pounds. It is usually caught in gillnets 

 and pound-nets. 



Head 4 to 5 ; depth 4 to 4-j; eye 4 to 5; snout 4 to 5; D. 

 9 to 1 1 ; A. 10 to 13; scales 8 to 10-62 to 87-7 or 8; maxillary 3 

 to 3f; mandible 2 to 2|; gillrakers 43 to s8; vertebrae 57. Body 

 long, slender and somewhat compressed; dorsal and ventral out- 

 lines but little arched; head pointed; mouth large, jaws subequal, 

 or the lower somewhat projecting; maxillary long, usually reach- 

 ing to vertical of pupil, its length 2J times its width; supplemental 

 bone broad, about half length of maxillary; mandible long, but 

 not usually reaching vertical of posterior edge of orbit; middle of 

 upper jaw on level with lower edge of orbit; caudal peduncle 

 slender but not much compressed, its least depth equal to distance 

 from tip of snout to middle of eye; dorsal fin small, its base 

 about 2 in head, its longest ray if in head; pectoral if in head. 

 Colour in life, back dull bluish-green, this colour extending down 

 on sides nearly to lateral line; lower part of sides silvery; under 

 parts white or silvery; dorsal fin usually blackish or bluish-black 

 on distal third, sometimes plain, the membrane often punctate 

 with dark; caudal bluish-black at tip; anal and ventrals pure white; 

 pectorals white, edged with dark above. Sometimes the anal has a 

 few black specks at base and on anterior part, and the snout 

 is often more or less dark. The amount of individual variation 

 in this species is very great. 



The Cisco of Lake Tippecanoe 



Argj'rosomiis sisco Jordan 



In certain small deep-water lakes in northern Indiana and 

 Wisconsin is a small lake herring described originally from Lake 

 Tippecanoe, Indiana, from which fact it has received its verna- 

 cular name. It has been reported also from Crooked, Shriner 

 and Cedar lakes in northeastern Indiana, and from Geneva, La 

 Belle, and Oconomowoc lakes in Wisconsin. 



To the angler the cisco of Lake Tippecanoe is by far the 

 most interesting of all the American whitefishes, although, like the 

 mountain herring, the fact that it will rise to the fiy or that it 

 can be taken on the hook at all, is not generally known. But its 



i.M 



