n TABLE OF CONTENTS. 



Pase. 

 Pakt II. Check-list of the species of Batrachia aud Reptilia, &c.— Continued : 

 Class Reptila — Continued : 



Order Lacertilia '^4 



Opbeosauri 44 



Pleurodonta - '*'* 



Typhi, .phthalrai 44 



Leptoglossa 44 



Diploglossa 46 



Iguania 47 



Nyctisaura <^'0 



Testudiuata '^^ 



Athecffi 50 



Cryiitodiia -^'l 



Crococlilia ^'4 



Part III. On geographical distribution of the Vertebrata of the Eegnum Nearc- 



ticunij-with especial reference to the Batrachia aud Reptilia 55 



I. — The fauual regions of the earth 55 



II. — Number of species 5S 



III. — Relations to other realms 61 



IV. — The regions 67 



Austroripai'ian tis 



Eastern , 70 



Central 71 



Pacific 7"^ 



Sonoran 73 



Lower Californian 74 



V. — The Austroriparian region - 76 



VI. — The Eastern region 82 



VIL— The Central region 8H 



VIII.— The Pacific region 89 



IX. — The Sonoran region 90 



X. — The Lower Californian region 92 



XL — Relation of distribution to physical causes 93 



Paui iV. Bibliography 97 



A.— Works on the classification of Batrachia and Reptilia 97 



B. — Works treating of the geographical distribution of North American 



Batrachia and Reptilia 100 



Alphabetical index 101 



