CONTENTS. 



Xlll 



BATRACHIA 



Page 



625 



Page 



Order ECATJDATA 625 



Eanidae 625 



CystignathidaB 626 



Bufonidse 626 



Hylidse 628 



Pelobatid 630 



Discoglossida? 630 



Order CAUDATA 631 



Salamandridse 631 



Amphiumidae 634 



Proteidae ....;. 635 



Sirenidae . . 635 



PISCES 



Subclass TELEOSTEI 636 



Gasterosteidee 636 



Percidae 636 



Triglidas 637 



Trachinidaa 637 



Gobiidaa 637 



Discoboli 638 



Pediculati 638 



Blenniidae 638 



Labyrinthici 639 



Mugilidaa 639 



Ophiocephalidae .... 639 



Gobiesocidae 639 



Labridae 640 



Gadidaj 640 



Pleuronectidas 641 



Siluridse 641 



Salmonidae . 642 



636 



Galaxiidaj 642 



Esocidae 643 



Cyprinidae 643 



Gymnotidae 644 



Huraenidae 645 



Syngnathidae 645 



Subclass DIPNOI 646 



Lepidosirenidae 646 



Subclass GANOIDEI 646 



Acipenseridae 646 



Subclass CHONDROPTERTGH.. 647 



ScyUiidae 647 



Spinacidae 647 



Subclass LEPTOSTOMATA . . 647 

 Petromyzontidae .... 647 



Subclass LEPTOCARDII .... 648 

 BranchiostomatidaB . . 648 



