TABLE OF CONTENTS. 



Page. 



Introductory remarks * 3 



Part I. Arrangement of tbe families and higher divisions of Batrachia and 



Reptilia. [Adopted provisionally by the Smithsonian Institntion.].. 7 



Class Batrachia 7 



Order Anura 7 



Stegocephali ~ 10 



Gymnophidia 11 



Urodela 11 



Proteida 12 



Trachystomata 12 



Class Reptilia 12 



Order Ornithosauria 12 



, , Dinosanria 13 



Crocodilia 14 



Sauropterygia 14 



' Anomodontia 15 



Ichthyopterygia 15 



Rbynchocephalia 15 



Testudinata 16 



Lacertilia 17 



PythonoiHorpha 20 



Ophidia 21 



Part II. Check-list of tbe species of Batrachia and Reptilia of the Nearctic or 



North American realm 24 



Class Batrachia 24 



Order Tracbj-stomata 24 



Proteida 24 



Caducibrancbiata 25 



Amira 29 



Bnfuniformia 29 



Firmisternia 30 



Arcifera 30 



Raniformia 32 



Class Reptila 33 



Order Opbidia 33 



Solenoglypba 33 



Proteroglypha 34 



Asiuea 34 



Scolecopbidia 44 



