EXPLANATION OF PLATES. 765 



Fig. 8. Head of Vipera paljyehrosa, p. 261. 



Fig. 9. Tail of the same species seen from below {Scuta subcaudalia 

 Integra). 



Fig. 10. Portion of tlie tail of Homalopsis angulata, p. 268, also seen 

 from below {Scuta subcaudalia divisa^ 



Fig. 11. Head of Amphisbcena alba, p. 281. 



Fig. 12. Head oi Chamwsaura anguina, p. 290; a, eye with small ocu- 

 lar fissure between the eyelids; * external auditory aperture 

 in front of the membrane of the tympanum ; b, fore foot, not 

 divided into toes. 



Fig. 13. Right hind foot of Platydactylus guttatus, p. 311, seen from 

 below; the thumb is destitute of nail. 



Fig. 14. Hind legs and base of the tail oi Hemidactylus, Cuv. li. p. 538, 

 Stellio platyurus of Schneider, after a figure by him. Here 

 the pari femorales may be seen, often noticed in the systematic 

 arrangement of the saurii. 



Fig. 15. Head and left fore leg of Platydactylus vittatus, p. 311. 



Fig. 16. Tongue of Faranus bivittatus, p. 298. 



Fig. 17. Tongue of Teju^ monitor, p. 297; of nearly similar form to our 

 lizards. 



Fig. 18. Tongue of Calotes gutturosus, p. 308. 



Fig. 19. Chelmiia imbricata, p. 321, after Bell, British Peptiles. Except 

 this figure, which is much smaller than the specimen, all the 

 others are of the same size as the specimens, and drawn from 

 them. 



Plate VI. Birds. 



Fig. 1. The skeleton of Falco cosrulescens of Java (p. 546), of natural 

 size. A, the skull ; B, the lower jaw; t the quadra tebone ; c, the 

 clavicle, furcula ; o, coracoid bone, or second clavicle ; E, the 

 cervical vertebrae; r, the dorsal vertebrae; h, the caudal verte- 

 brae; l, the sternum; n, the scapula; p, the humerus; Q, the 

 radius ; r, the ulna ; i, the hand (the letter is placed on the 

 thumb) ; w, the thigh-bone (femur) ; x, the tibia ; y^ the fibula ; 

 n, single bone representing the root of the foot {tarsus) and fore 

 foot {metatarsus) ; 1 thumb, 2 internal, 3 middle and 4 exter- 



