CONTENTS. 



Xlll 



BATRACHIA 



Order ECAUDATA 625 



Ranidae 625 



Cystignathidae 626 



Bufonidae 626 



Hylidse 628 



Pelobatidae 630 



Discoglossidae 630 



Page 

 625 



Order CAUDATA 631 



Salamandridse 631 



Amphiumidae 634 



ProteidaB 635 



Sirenidaj . . 635 



PISCES 



Subclass TELEOSTEI 636 



Gasterosteidse 636 



Percidae 636 



Triglidffi 637 



Trachinidse 637 



Gobiidae 637 



Discoboli 638 



Pediculati 638 



Blenniidae 638 



Labyrinthici 639 



Mugilidae 639 



Ophiocepbalidae 639 



Gobiesocidae 639 



Labridae 640 



Gadidse 640 



Pleuronectidae 641 



Siluridaa 641 



Salmonidae . 642 



636 



Galaxiidae 642 



Esocidae 643 



Cyprinidae 643 



Gymnotidae 644 



Muraenidae 645 



Syngnathidae 645 



Subclass DIPNOI 646 



Lepidosirenidae 646 



Subclass GANOIDEI 646 



Acipenseridae 646 



Subclass CHONDROPTERTGII.. 647 



Scylliidse 647 



Spinacidae 647 



Subclass LEPTOSTOMATA . . 647 



Petromyzontidae .... 647 



Subclass LEPTOCAKDII .... 648 



Branchiostomatidae . . 648 



