Transactions - American Fisheries Society . l area. The caudal border is at the left. The scale is viewedas a transparent object and is magnified about ten diameters From a photograph. of the scale. The caudal border shows Init little trace of crena-tion and the caudal area but little fluting. Striations of thecaudal area are apparently as numerous near the border as atthe center of the scale. The differences between the scales are such that they may beeasily distinguished at once by a good hand lens. Turning now to the salt-fish which were seized as illegalwhitefish, we find that in their sca
Transactions - American Fisheries Society . l area. The caudal border is at the left. The scale is viewedas a transparent object and is magnified about ten diameters From a photograph. of the scale. The caudal border shows Init little trace of crena-tion and the caudal area but little fluting. Striations of thecaudal area are apparently as numerous near the border as atthe center of the scale. The differences between the scales are such that they may beeasily distinguished at once by a good hand lens. Turning now to the salt-fish which were seized as illegalwhitefish, we find that in their scale characters (position of thegrowth center, crenation, fluting, and striation of the caudalarea) they agree with the menominees. Twentv-eight of the American Fisheries Society. 53 thirty-five are wliolly ty]):eal, i. c, agree with tlie menominee inall the characters mentioned. Seven (20 per cent.) are nottypical in all their characters, hut are typical in one or moreand are recognizahle as nienominees. These salt-fish were repre- ^^1 \--:. ? ^ !^ .V U^ sented by but two samples from a keg. Had more than two fish from a keg been available for examination, it is probable that entirely typical menominees could have been found in each keg. As a result of this examination the salt fish which had been 54 Thirfy-fifth Annual Meeting seized as immature whitefish were returned to the parties fromwhom they were taken. In addition to the whitefish and menominees I have exam-ined in the round eleven Great Lake herring (Arg}-rosomusartedi), seven from Saginaw Bay and four from Lake Erie, andone hlackfin (Argyrosomus nigripinnis), presumably from LakeHuron. The bkckfin and the Saginaw Bay herring are dis-tinguishable from the whitefish b} the scale characters, positionof growth center, and striation of caudal area. The Lake Erieherring were of unusual size, between three and four poundsweight and I am unable to separate them from the whitefish. In conclusion it may be said that the method e
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