NATURAL HISTORY OF THE 



SEA LAMPREY (Petromyzon marinus) 



IN MICHIGAN 



X-I 3 it A i* "^ 



MAR ?- i^-i 



WOODS HOLE, MA:-S. 



SPECIAL SCIENTIFIC REPORT: FISHERIES No. 55 



UNITED STATES DEPARTMENT OF THE INTERIOR 

 FISH AND WILDLIFE SERVICE 



