X NORTHERN FISHES 



FIGURES 



1. Silver lamprey, Ichthyomyzon iinicuspis 68 



2. American brook lamprey, Entosphenus lamottenii . . 70 



3. Paddlefish, Polyodon spathula 74 



4. A. Rock sturgeon, Acipenser fulvescens. B. Hackleback, 

 Scaphirhynchusplatorynchus. C. Northern longnose gar, 

 Lepisosteus osseus oxyuriis. D. Shortnose gar, Lepi- 

 sosteus platostomus 76 



5. Fresh-water dogfish, Amia calva, male 86 



6. Fresh-water dogfish, ATnia calva, female 86 



7. Mooneye, Hiodon tergisus 89 



8. Gizzard shad, Dorosoma cepedianum 92 



9. Northern cisco, Leucichthys artedi tullibee .... 98 



10. Great Lakes whitefish, Coregonus clupeaforTnis 

 clupeajormis 102 



11. A. Brown trout, Salmo trutta fario. B. Common lake 

 trout, CristivoTner namaycush namaycush. C. Common 

 brook trout, Salvelinus fontirialis fontinalis . . facing 106 



12. Coast rainbow trout, Salmo gairdnerii irideus . . . . 109 



13. Siscowet, Cristivomer najnaycush siscowet 115 



14. Bigmouth buffalofish, Megastomatohus cyprinella . . 121 



15. Quillback, Car plod es cyprinus 124 



16. Blue sucker, Cycleptus elongatus 127 



17. Common white sucker, Catostomus commersonnii 

 commersonnii 129 



18. Hog sucker, Hypentelium nigricans 131 



19. Spotted sucker, Minytrema melanops 133 



20. Silver redhorse, Moxostoma anisurum 135 



21. Northern redhorse, Moxostoma aureolum 136 



22. Carp, Cyprinus carpio, scale variety 146 



