236 NEW YORK STATE MUSEiUM 



Coregonus Iwyi Jordan, Man. Vert. ed. 2, 275, 1878; Jordan & Gilbert^ 

 Bull. 16, U. S. Nat. Mus. 299, 1883; Smith, Bull. U. S. F. C. XIV, 6, 

 pi. 1, fig. 1, 189. 



Head, four; depth, four and four sevenths; eye, five (nearly); 

 snout, three and one half; maxillary, nearly three in head, reach- 

 ing to vertical through front of pupil. D. 10; A. 11, Scales, 

 8-70-9. Gill rakers, 14+28, left side, 40 on right side, longest 

 about I inch, about two in eye. Branchiostegals, 8. Body rather 

 elongate, compressed, the back little elevated; mouth rather 

 large, terminal, the lower jaw slightly longer than upper when 

 the mouth is closed; tip of muzzle conical as in A. artedi; 

 mandible nearly reaching vertical through posterior edge of 

 eye, nearly two in head; head rather long and slender, with 

 pointed snout; interorbital width equal to eje; supraorbital 

 and preorbital long and narrow; distance from tip of snout ta 

 occiput two in distance from occiput to origin of dorsal fln^ 

 dorsal rays much longer anteriorly than posteriorly, the longest 

 ray nearly equal to distance from front of pupil to end of head^ 

 the last ray only one third as long; longest anal ray two and 

 one half in head, last anal ray two fifths as long as the longest;: 

 pseudobranchiae well developed; tongue with evident teeth. 

 Color in spirits silvery, with purplish iridescence on back; scales 

 without punctulations; belly whitish; dorsal and caudal fins 

 dark on terminal half, pale at base; other fins all pale. Lengthy 

 without caudaJ, 8 inches; total length, 9-|- inches; depth 1| 

 inches; head, 2^ inches; eye, tb inch; maxilla, H inch; interorbital 

 width equal to diameter of eye. 



Mr Annin wrote me that the people at Canandaigua lake told 

 him that there were large quantities of small lake shiners, as 

 they are called, in the lake. A fisherman said that they are seen 

 in immense schools at the top of the water occasionally, and, by 

 firing a gun loaded with shot into them, men can stun them so 

 as to pick up quite a number. They are eagerly sought after for 

 trolling bait for the salmon trout found in that lake. 



This species is recorded with certainty from Lake Michigan, 

 only. It is taken in gill nets in deep water and, notwithstand- 

 ing its small size, has become commerciall}^ important. It i» 



