Vlll CONTENTS. 



SUB-CLASS 11. OVO-VIVIPAROUS MAMMALIA. 



PAGE 



ORDER XI. MARSUPULIA 342 



ORDFR XII. MONOTREMXTA 354 



RELATIONS OF THE SEVERAL ORDERS OF THE CLASS MAMMALIA 360 



CHAPTER IV. 



OF THE CLASS OF BIRDS 361 



ORDER I. RAFTORES 396 



ORDER II. INSESSOKES 423 



TRIBE I. CONIROSTRES 427 



TRIBE II. DENTIROSTRES 440 



TRIBE III. FISSIROSTRES ..... 450 



TRIBE IV. TENUIROSTRES 459 



ORDFR III. SCANSORES 467 



ORDER IV. RASORES 473 



ORDER V, CURSORES 484 



ORDER VI. GRALLATORES 492 



ORDER VII. NATATORES 506 



CHAPTER V. 



CLASS OF REPTILES . . . 523 



ORDER I. CHELONIA 548 



ORDER II. SAURIA 553 



ORDER III. OPHIDIA 569 



ORDER IV BATRACHIA 574 



