INDEX 



667 



pkemus, 371 f. ; T. sumeirei, 376 ; T. 

 vosmaeri, 373, 377 



Tetradactylus, 559 ; T. africanus, 559 ; T. 

 seps, 559 



Tetrapoda, Credner's name for "four- 

 footed " creatures in opposition to the 

 fishes, which have fins, 4, 11 



Thalassemydidae, 380 



Thalassochelys caretta, individual variation 

 of shields, 326, 327, 387; skull, 379 



Thecophora, definition of term, 337, 338 



Theobald, on Varanus, 544 



Theriodontia, 306 



Theromorpha, 300, 301 ; skull, 280, 301 ; 

 their affinity to Mammals, 303 f., 309 



Theropoda, 420 



Thilenius, quoted, 571 n. 



Thoracosaurus, Jfil 



Thorius, 96, 103 ; TJi. pennatulus, 103 



Thoropa, 186, 189 ; Th. miliaris, 209 



Tiger Snake, 634 



Tiliqua s. Cyclodus, 561 



Toad, see Bufo, 169 ; common Toad, 170, 172 



Toes, number of, in Urodela, 16 ; in Anura, 

 28 ; of Geckos, structure, 505, 505 



Tomistoma, 435, 450 ; T. schlegeli, 453 



Tongue, of Amphibia, nerve-supply, 39 ; 

 shape of, in Auura, 47; of Spelerpes, 

 106 ; absent in Aglossa, 145 ; of Rana 

 esculenta, 268 ; of Crocodiles, 443 ; of 

 Lacertilia, 498 ; of Chameleons, 569 f. 



Tortoise, Greek, 365 f. ; habits, 367 f. ; 

 Moroccan, 366 ; habits, 367 f. ; Starred, 

 370 f. ; Gopher, 371 f. ; Gigantic Land- 

 Tortoises, 372 f. 



Tortoises = Chelonia, 312 f. 



Tortoise-shell of commerce, 386 



Trachea, of Crocodiles, 443 



Trachysaurus, 560, 560 ; T. rugosus, 560, 

 561 



Tree-frogs, 185 f. ; change of colour, 35 



Trematosaurus, 80, 83 



Triceratops, 413 ; T. prorsus, 430, 430 ; T. 

 flabdlatus, 430 



Trichobatrachus, 240 ; T. robustus, 271 



Trigonocephalus cenchris, 645, 645, 646, 

 646 



Trimerorhachis, 82 



Trionychidae, 313 ; distribution, 333 



Trionychoidea, 313, 314, 4^4 f- ; habits, 

 407 



Trionyx, nuchal plate, 324 ; skull, 405 ; 

 plastron, 406 ; number of costal 

 plates, 325 ; T. ferox, 408, 409 ; T. 

 formosa, 411, 4H '> T. gangeticus, 410, 

 410 ; T. hurum, 410 ; T. triunguis, 410 



Triprion, 179, 185, 189; T. petasatus, 

 207 



Trirhachiodon, 309 



Triton, 122 f., 96, 115, 125, 128, 131 ; 

 fossil, 83 ; spermatophores, 53 ; T. alpes- 

 tris, 123, 126 ; T. asper, 123, 130 ; T. 



blasii, 126; T. boscai, 123, 127 ; T. 

 cristatus, 122, 125. 125; T. hagen- 

 muelleri, 123 ; T. helveticus, 127 ; T. 

 italicus, 127 ; T. marmoratus, 122, 126 ; 

 T. montadoni, 127 ; T. montanus, 123, 

 130; T. palmatus, 127 ; T. poireti, 

 123 ; T. punctatus = vulgaris, 127 ; T. 

 pyrenaeus, 130 ; T. pyrrhogaster, 123, 

 128 ; T. rusconii, 123, 130 ; T. sinensis, 

 123, 128; T. taeniatv,s = mdgaris, 127 ; 

 T. twosus, 123, 128; T. mridescens, 

 123, 128; egg, 128; T. vittatus, 122, 

 128; T. vulgaris, 123, 127 ; T. ivaltli, 

 123, ISO, 131 



Tritylodon, 301, 309 



Tropidonotus, 607 ; T. natrix, 608 f. ; T. 

 ordinatus, 611; T. sirtalis, 610, 611; 

 T. tesselatus, 611 



Tropidosaura, 558 



Tuatera, 293 



Tupinambis, 548; T. teguixin, 548; T, 

 nigropunctatus, 548, 548 



Turtles, 378 f. ; skull, 317, 379 ; skeleton, 

 320 ; plastron, 321 ; on Laysan Islands, 

 383 ; Green or Edible, 381 f. ; Hawks- 

 bill, 384, 385 



Tylototriton, 96, 115; T. andersoni, 130; 

 T. verrucosus, 132 



Tympanic cavity, reduction of, in Anura, 

 30 ; in Ophidia, 583 



Tympanum of Aglossa, 143 



Typhlomolge, 96 ; T. ratkbuni, 135 



Typhlonectes, 87, 90; T. compressicauda, 

 93 



Typhlopidae, 592, 593 f. 



Typhlops, 91 ; T. braminus, 594 ; T. 

 vermicidaris, 594 



Typhlosaurus, 564 



Typhlotriton, 94, 96, 102 ; T. spelaeus, 103 



Uraeotyphlus, 86, 89 



Ureter, 48 f., 49 



Urino-genital organs, 48 f.. 49 



Urocordylus, 81, 288 



Urodaeum of Chelonia, 330 



Urodela, 94 f. ; geographical distribution, 



96 

 Uromastix, 524 ; U. acanthinurus, 526, 



526 ; U. hardivicki, 525 

 Uropeltidae, 592, 595 

 Uropeltis, 595 ; U. grandis, 595 

 Uroplates, 512 

 Uroplatinae, 512 

 Urostyle, of Anura, 23 ; of Chelonia, 328 



Varanidae, 514, 542 f. ; skull, 542 ; dis- 

 tribution, 543 



Varanus, 543 ; V. gouldi, 546 ; V. grisens, 

 skull, 542; F. niloticus, 543; V. 

 salvator, 543 f., 546 



Vas deferens, 48 f., 49 



Vertebrae, procoelous, definition, 19, 138 ; 



