5°4 



INDEX 



Supination, 318 

 Supra-angular, 298, 300 

 Supracleithrum, 71, 73, 301, 313. 



316 

 Supraoccipital, 68, 72, 300 

 Supra-renal, 62, 101,401 

 Suprasegmental structures, 374 

 Supratemporal, 104, 300 

 Surface Volume ratio, 417 

 Swim-blad.er, 77, 340 

 Sympathetic, 385 



— nerve-chain, 45, 62, 156, 385 



— ganglia, devpt. of, 194 

 Symplectic, 71, 73, 300 

 Synapsida, 291, 439 

 Synapticula, 12 

 Synaptosauria, 292, 440 

 Syrinx, 126, 343 



Systemic (aortic) arch, 95, 109, 128, 

 147, 196, 332 



Tadpole, horny teeth of, 257 

 Tapetum, 190 

 Tarsibidea, 461 

 Tarsius, 461, 470 

 Tarso-metatarsus, 124, 222 

 "Taste-brain," 368, 373 

 Tectum synoticum, 281 

 Telencephalon, 41, 86, 113 

 Teleoptiles, 119 

 Teleostei, 429 

 Teleostomi, 428 

 Temporal cavity, 287 



— fossa, 103, 288 

 Tetoriius, 461 

 Tetrabelodon, 458 

 Thalamencephalon, 41 

 Thalamus, 41, 113, 154, 376 

 Thalattosaurs, 441 

 Thalattosuchia, 

 Thebesian valve, 333 

 Thecodont dentition, 261 

 Theriodonta, 440 

 Theromorpha, 292, 439 

 Theropsida, 322, 332, 443 

 Thoatheria, 320, 457 

 Thoracic duct, 148, 336 

 Thoracico-lumbar outflow, 385 

 Thylacinus, 456 

 Thylacoleo, 456 



Thymus, 62, 151, 402 

 — , devpt. of, 183 

 Thyrohyoid, 138 

 Thyroid cartilage, 146 



— gland, 11, 29, 62, 152, 399 



, devpt. of, 183 



Tibia, 93, 222, 301 



Tibiale, 93, 301 



Tibio-tarsus, 124, 222 



Tinamu, 448, 450 



Titanotheres, 457 



Tongue-bars, 12, 170 



Tongue, of Petromyzon, 20 



Tonsils, 145, 336 



Tornaria larva, 422 



Torpedo, 277, 427 



Trabecula, 194, 279 



Transpalatine, 105, 296, 300 



Transverse process, 92, 106, 121,306 



— septum, 31, 34, 53, 58, 271 



— — , devpt. of, 187, 218 

 Trapezium, 141, 301 

 Trapezoid, 141, 301 

 Triassochelys, 439 



— , teeth of, 263 



TriceratopSy 442 



Tricuspid valve, 147 



Trigeminal nerve, 26, 46, 356, 367, 



368 

 Tritubercular teeth, 267, 454 

 Trituberculata, 454 

 Trochanter, 141 

 Trochlear nerve, 26, 46, 354, 368, 



37o 

 Trophoblast, 228, 250 

 Tropibasic skull, 281 

 Tropitrabic skull, 281 

 Truncus arteriosus, 95, 109, 331 

 Tuberculo-sectorial tooth, 267 

 Tuberculum acusticum, 367 

 — , of rib, 121, 308 

 Tubule of kidney, 31, 55, 98, in, 



188, 220, 348 

 Tunica vaginalis, 143 

 Tupaia, 470 

 Turbinals, 135, 300 

 Turtle, 334 

 Twinning, 353 

 Tympanic bulla, 135, 298, 300 



— cavity, 108, 113, 395 



— membrane, 108, 113 

 TyrannosauruSy 442 



Uintatherium, 457 



Ulna, 93, 301 



Ulnare, 93, 301 



Umbilical veins, 219, 233 



Umbilicus, 212 



Unciform, 141, 301 



Uncinate process, 121, 308, 446 



Ungulata, 319, 457 



Unguligrade, 319 



Ureter, in, 130, 149, 350 



— , devpt. of, 221 



