726 



Index 



Symmetry, 345 

 Sympathetic ganglia, 234 



nervous system, 194, 206, 207, 250 



trunk, 203 

 Sympathin, 207 

 Symphyla, 490, 515 

 Symphysis, 100, 110 

 Synapse, 195, 210, 232 

 Synapsida, 604, 612 

 Synapsis, 273 

 Synaptosauria, 603 

 Synarthrosis, 112-113 

 Syncytium, 424, 440 

 Syndactyly, 315 

 Synentognathi, 590 

 Synergists, 118 

 Syngamy, 253, 351, 352 

 Syngnathus, 590 

 Synovial fluid, 96, 113 

 Synthesis of hormone, 226, 228 

 Syrinx, 150 



Systema Naturae, 42, 43 

 Systematics, 41 

 Systemic arch, 64, 65 



circulation, 64, 161, 163, 164 

 Systole, 172, 174, 175 

 Systolic pressure, 175 



Tachyglossus, 629, 631 

 Tactile, 212 

 Tadpole, 50 



larva, 563 

 Taenia saginata, 418 



solium, 404, 417, 418 

 Tail, of bird, 78 



epididymis, 257 



fish, 587 



frog, 50 



mammal, 167 



sagitta, 554 



sperm, 258, 275 

 Tapetum cell, 503 



Tapeworm, 45, 178, 347, 401, 416-420 

 Tapir, 630, 639 

 Tapirus, 630 

 Tardigrada, 489, 515 

 Tarpon, 590 

 Tarsals, 56, 58, 101, 110 

 Tarsier (see Tarsius), 632, 635 

 Tarsius, 632, 635 

 Tarsus, 512, 522, 523 

 Taste, 214, 215 



bud, 54, 71, 130, 213, 214 



pore, 214 

 Taxonomy, 21, 41, 42 

 Tear, 216 

 Tectin, 351 

 Tectorial membrane, 222, 223 



Teeth, 86-88, 130, 131, 239, 636 

 hinge, 472 

 maxillary, 53 

 pseudocardinal, 472 

 vomerine, 53 

 Telencephalon, 196-198, 202 

 Teleostei, 569, 570, 582, 590 

 Telolecithal egg, 283-284 

 Telophase, 271-272 

 Telson, 495 

 Temperature, 160 

 Temple, 120 



Temporal bone, 102, 103, 221 

 lobe of cerebrum, 197, 200 

 Tendon, 59, 111, 117, 155 

 Tentacles of coelenterates, 384 

 ctenophores, 398, 399 

 Neanthes, 451 

 sipunculids, 465 

 squid, 478 

 Suctoria, 373, 374 

 Tentaculata, 399-400 

 Teredo, 468, 476, 477 

 Tergum, 492, 522 

 Termites, 351, 357, 532-533, 538 

 Terrapene, 605 



Terrestrial animals, 105, 153, 190, 220, 

 486 

 life, 290, 592, 593, 594, 595, 602 

 Territories of birds, 621 

 Tertiary period, 342 

 Test, of protozoan, 351 

 of sea urchin, 550 

 of tunicate, 561, 562 

 Testis, 73, 240-241, 255-257 

 Testosterone, 241, 242, 255 

 Testudo, 606 

 Tetanus, 124, 125, 173 

 Tetany, 231, 232 

 Tetrad, 274 



Tetrapoda, 567, 592-625, 626-643 

 Texas cattle fever, 363, 516 

 Thalamus, 69, 199 

 Thalassicola, 361 

 Thaliacea, 561 

 Thamnophis, 609 

 Thecodontia, 603, 613, 614 

 Theory, 19 



axial gradient, 408 



cell, 265, 266 



continuity of germplasm, 279, 297 



diphyletic, 646 



epigenesis, 278-279 



membrane, 207-209 



mutation, 311 



preformation, 278 



recapitulation, 508 



survival of fittest, 327 



trochophore, 453 



