LIST OF PLATES 



A specimen of the Pomacentridae and one of the Chaetodontidae, illustrat- 

 ing the brilliant coloration of these tropical families of fishes. A, 

 Abudefduf taupou, 'Samoa(Pomacentridae). B, Tetragouopterus 

 ephippium, East Indies (Chagtodontidas) . . . Frontispiece 



From a drawing in colour by James Green. 



PLATE FACING PAGE 



I. Skeleton of Pariasaurus, the Ancestral Type of the Mammal-like 



Reptiles. (By permission of the Trustees of the British Museum) 16 



II. A, The New Zealand Tuatera (Sphenodon punctatum), the sole 

 survivor of the most primitive and most ancient group of the 

 bird-like Reptiles. B, a girdle-tailed Lizard (Zonurus giganteus) 

 of South Africa, to show apparent similarity of Lizard and 

 Tuatera ........... 26 



Photos, Lewis Medland. 



III. A Giant Land-tortoise (Testudo daudini) of South Aldabra 



Island 36 



Photo from life. 



IV. A, The Mata-mata Terrapin (Chelys fimbriata). (By permission of 



the Trustees of the British Museum). B, The Nile Soft-tortoise 

 (Trionyx trhinguis) ......... 54 



V. Protective Resemblance in Reptiles: Bark-geckos of Madagascar. 



A, The Lichen Bark-gecko (Uroplates fimbriatus lichenium). 



B, The Common Bark-gecko (Uroplates fimbriatus) ... 87 



From a drawing in colour by James Green. 



VI. A, Moloch Lizard (Moloch horridus). B, " Horned Toad " 

 (Phrynosoma comutum). To show depressed form of body 

 characteristic of terrestrial types of lizards. C, Bearded Lizard 

 (Amphibolurus barbatus) of Australia ..... 91 



VII. A, Chamaeleon Lizard. B, Common Chamaeleon. To show 



similarity of arboreal forms in widely different types ... 94 

 B, Photo, Lewis Medland. 



VIII. A, Australian Frilled Lizard (Chlamydosaurus kingi), from a 



stuffed specimen. B, C, same in running positions (from life) . 96 

 B and C, Photographed by the late Saville Kent, Esq. 



IX. A, Part of the skin of an African Python (Python seba), showing 

 external vestiges of the hind limbs. B, Complete bones of the 

 hind limb-girdle in same species. (By permission of the Trus- 

 tees of the British Museum) ....... in 



XV 



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