LIST OF ILLUSTRATIONS xv 



PIG. 



977. Chameleon vulgaris 338 



978. Pygopus lepidopus 339 



979. Sphenodon punctatum 340 



980. Testudo greeca 341 



981. Sphenodon, vertebra 343 



982. Python, vertebra 343 



983. Crocodile, skeleton 345 



984. Sphenodon, skeleton 345 



985. Crocodile, anterior vertebrae 346 



986. Cistudo lutaria, skeleton 346 



987. Chelone midas, transverse section of skeleton 347 



988. Tropidonotus natrix, skull . 348 



989. Crotalus, skull 349 



990. Sphenodon, skull 350 



991. Emys europsea, skull 351 



992. Chelone mydas 351 



993. Crocodilus porosus, skull 352 



994. Crocodile, skull 353 



995. Emys europsea, tarsus 354 



996. Alligator, carpus .354 



997. ,, pelvis . 355 



998. Crocodile, tarsus 355 



999. Monitor, Emys, and Alligator, tongues 357 



1000. Chameleon, lungs 358 



1001. Lacerta muralis, heart 358 



1002. Turtle, diagram of heart 359 



1003. Crocodile, heart 359 



1004. Alligator, brain 360 



1005. Sphenodon punctatum, pineal eye 361 



1006. Alligator, early development 363 



1007. Lacerta . 364 



1008. Draco volans 366 



1009. Rattlesnake, poison apparatus 367 



1010. Belodon, skull 370 



1011. Galesaurus planiceps, skull 371 



1012. Plesiosaurus macrocephalus 372 



1013. ,, pectoral arch 372 



1014. ,, pel vie arch 373 



1015. Ichthyosaurus communis . . . 373 



1016. Iguanodon bernissartensis 374 



1017. ,, mantelli, teeth 375 



1018. Pterodactylus spectabilis 376 



1019. Scaphognathus, skull 376 



1020. Ramphorhynchus 377 



1021. Edestosaurus 377 



1022. Columba livia, external form 379 



1023. ,, feathers 381 



1024. Structure of feather . 382 



