NATURAL HISTORY OF THE 



SEA LAMPREY (Petromyzon marinus) 



IN MICHIGAN 



' LI B Et A it "V 



MAR 2-V^i^i 



WOODS HOLE, MASS. 



SPECIAL SCIENTIFIC REPORT: FISHERIES No. 55 



UNITED STATES DEPARTMENT OF THE INTERIOR 

 FISH AND WILDLIFE SERVICE 



