TABLE OF CONTENTS. 



Page. 



Percidae 43 



Stizostethium 43 



Stizostethium vitreum 46 



Stizostethium salmoneuiu 47 



Stizostethium canadense 48 



Catalogue of species of Stizostethium 49 



ElassominsB 50 



Elassoma 50 



Elassoma zonata 50 



Aphododeridae 51 



Asternotremia 51 



Aphododerus cookianus 52 



Asternotremia mesotrema 52 



List of species of Aphododeridae 53 



TlmbridsB 53 



Umbra pygmsea ,. , 53 



Esocidse 54 



Esox uobilior 54 



DorysomatidsB 55 



Dorysoma cepediana 55 



Cyprinidse 55 



Genera of American CyprinidjB 55 



Luxilus selene 60 



Luxilus roseus 61 



Cyprinella calliura 61 



Photogenis grandipinnis 62 



Semotilus thoreauianus 63 



Nocomis milneri 64 



Cliola ariomma 64 



Hy bognathus regius .' 64 



Notemigonus chrysoleucus 65 



Platygolio gracilis 65 



Catostomidse 66 



Myxostoma pcecilura ' 66 



Hyodontidae 67 



Hyodon selenops 67 



Synopsis of fresh- water Siluridae of the United States 69 



Group Ichthaeluri , 70 



Analysis of genera of Ichthaeluri 71 



Catalogue of nominal species 71 



Ichthaelurus 74 



Analysis of species of Ichthaelurus 75 



Ichthaelurus furcatus 75 



Ichthaelurus robustus 76 



Ichthaelurus punctatus 76 



