^- 1923 



Lake Erie and tributaries . —-One specimen, 22 inches long, talcen at 

 Pointe Aux Pins, opposite Rondeau Harbor, Ontario (date not 

 given). W, C Bates 11*10 captured this specimen reported to 

 Dr, Van Oosten that he occasionally took large lampreys in 

 his nets (Hubbs and Broivn, 1929). One specimen collected near 

 Sandusky, Ohio, in the spring by a Mr. W. M. Tidd (Hubbs and 



Brown, 1929). 



1930 



Lake Erie and tributaries . ■ — One specimen, 13»75 inches long, taken 

 by a fisherman in the St, Clair River in second week of Ijlay, 

 I93O; attached to a U.^-pound "pilceperch" (Hubbs and Pope, 



1937). 



1932 



Lake Erie and tributarie s . —Adult specimen collected in the Huron 

 River at Flat Rock, Wayne County, Michigan, on May 8, 1932 

 (Creaser, 1932); this was the first recoixi of a spawning 

 migrant and verified establishment of the species in Lake Erie. 

 Penetration into Lakes St. Clair and Huron was probably well 

 begun on, or before, this date. 



193U 



Lake Erie and tributaries . — A mature sea lamprey, 1|55 millimeters 

 long, collected in Swan Creek, tributary of the Mauraee River 

 in Toledo, Ohio, on May 8, 193Uj spawning migrant (Hubbs and 

 Pope, 1937). 



Lake St, Clair and tributaries . —Reportedly observed in Clinton 

 River at Rochester, Oakland County, lQ.chigan, in spring by 

 Harry Tate s of that cityi spawning run? (Shetter, 19li.9). 



193^ 



Lake Erie and tributaries .' — Two mature sea lampreys, h^9 and 528 

 millimeters, respectively, collected in Swan Creek, Toledo, 

 Ohio, on April 26, 1935j spawning run (Hubbs and Pope, 1937). 



-U - 



