CONTENTS. ■ f^ 



Title i -^44, 



Board of Regents ii 



Contents iii 



Letter ot'Tranamitfal iv 



Preface v 



Plate.... X 



Explanation of Plate 1 



Introduction .. 2 



Key to the Classes 8 



Marsipobranchii 8 



Hyperoartii 8 



Petromyzonidie 8 



Key to the Pisces 10 



Selachostomi 12 



PolyodontidjB 12 



Chondrostei 12 



Acipenseridse 12 



Rhomboganoidea 14 



Lepisosteid.ne 14 



Cycloganoidea 15 



Amiidse 15 



Nematognathi 15 



Siluridje 15 



Plectospondyli 20 



Catostomidse 20 



Cyprinidse 26 



Apodes 41 



Anguillidie 41 



Isospondyli 42 



Hiodontidfe 42 



Dorosomidse 42 



Salraonidse 43 



Haplomi.- 48 



Umbridaj 48 



Lnciidse 48 



PceciliidfB 60 



Hemibranchii 51 



Gasterosteid?e 51 



Acanthopteii 52 



Percopsidffi 52 



Aphredoderidse 53 



Atherinidse 53 



Centrarchidge 54 



Percidse 62 



Serranidse 72 



Sciaenidfe 73 



Cottidse 74 



Gadidae 75 



Snmmary 77 



Index 84 



