S. F. C. 1897 (To <ace page 209.) 



PLATE 10. 



LAKE LAMPREY (Petromyzon marinus unicolor De Kay) FROM CAYUGA LAKE, IN WINTER. One-half natural siz 



BROOK LAMPREYS (Lfiiiijx'trn irilderi Gage). Natural size. 



(a) male, and 6) fem;;le, taken at spawning season and photographed under water with a vertical camera. 

 (From Plate IV, in the Wilder Quarter Century Book, by S H. Gage ) 



PICKEREL (Luciiut n-ti'-iiJntnx) AND SUCKER ;,tnt<>,,ni* r<>i,nnr,->uiii) WITH LAMPREY SCARS. 



In both cases the wounds penetrate the abdomen. 

 ( Photon ra i >lic<l f.-.-sh under wati-r. witli a. vertical cani.T.-i 



LAKE LAMPREY CLINGING TO THE SUCKER UPON WHICH IT WAS CAUGHT. 

 Note the characteristic Lamprey scars by the pectoral and pelvic fins. 



