INDEX TO FAMILIES AND GENERA. 



Abrarnis 49 



Acipenser 19 



Ambloplites 79 



Ammocrypta 96 



Ameiurus 23 



Amia 21 



Amiidse 21 



Anguillidse 65 



Anguilla 65 



Aplodinotus 103 



Argy rosomus 69 



Aphredoderidae .... 75 



Aphredoderus 75 



Apomotis 80 



Atheriuidae 76 



Boleichthys 102 



Boleosoma 94 



Campostonia 43 



Carassius 42 



Carpiodes 31 



Catostomidae 30 



Catostomus 34 



Centrarchidse 77 



ChEenobryttus 79 



Chrosomus 44 



Cliola 50 



Clupeida& 67 



Cottidae 104 



Cottus 104 



Cottogaster 93 



Coregonus 68 



Cristi vomer 69 



Crystal laria 95 



Cycleptus 33 



Cyprinidse 41 



Cy,rinus 42 



Diplesion 94 



Dorosoma 67 



Dorosomidse 67 



Ericyruba 59 



Erimyzon 36 



Etheostoma .... 97 



Eucalia 74 



Eupomotis 83 



Esoglossum 64 



Fundulus 73 



Gadidae 104 



Gasterosteidae 74 



Hadropterus 91 



Hiodon 66 



Hiodontidae 66 



Hybognathus 44 



Hybopsis .' 62 



Ichthyomyzon 15 



Ictalurus 22 



Ictiobus 30 



Eabidesthes 76 



Lagochila ..." 40 



Eampetra 16 



Eepisosteidse 20 



Eepisosteus 20 



Eepomis &i 



Eeptops 26 



Eeuciscus 47 



Eota I0 4 



Euciida; yi 



Eucius ji 



Micropterus 85 



Minytrema 36 



Moxostoma 37 



Notropis 51 



Noturus 26 



Opsopceodus 48 



Perca 89 



Percidae 87 



Percina 89 



Percopsidse 75 



Percopsis 75 



Pimephales 45 



Placopharynx 39 



Polyodon.... 18 



Polyodontidse 18 



Pceciliidae 73 



Pomolobus 67 



Pomoxis 77 



Rhinichthys. 60 



Roccus 102 



Salmonidas 68 



Salvelinus. . 70 



Scaphirhynchus 19 



Schilbeodes 27 



Scisenidae 103 



Semotilus 46 



Serranidae 102 



Siluridae 22 



Stizostedion 88 



Tinea 42 



Umbra 70 



Umbridae 70 



