Sternothyroideus, 432 



Sternum, 145, 147, 148, 187 



Steroid secretions, 381 



Stickleback, 305 



Stomach, 11, 16, 253, 256,257, 264 



caecum, 264 

 Stomochord, 12, 15, 16, 382 

 Stomodeal groove, 201 

 Stomodeum". 199, 379 

 Straight sinus, 360 

 Stratum compactum, 226 

 Stratum corneum, 218, 219, 222 

 Stratum germinativum, 217, 222, 223 

 Stratum granulosum, 218 

 Stratum laxum, 226 

 Stratum lucidum, 218 

 Stratum spinosum, 218 

 Streptostyiic quadrate of bird, 76 

 Striated muscles, 420 

 Stroma cells, 331 

 Sturgeon, see Acipenser 

 Stylets, 130 

 Styliform process, 1 30 

 Stylohyal, offish, see interhyal 



mammal, 40, 41 

 Stylohyoid ligament, 41 

 Stylopodium, 172 

 Stylus of stapes, 80 

 Subarcuate (floccular) fossa, 41,51 

 Subcardinai, 369 



Subchordal rod (hypochord), 153, 162 

 Subclavian artery, 347, 360 

 Subcoracoideus muscle, 436 

 Subcutaneous layer, 226 

 Subholostean, 20, 1 15 



head skeleton compared with holosteans, 

 116 

 Subhypophyseal sac, 379 

 Sublingual rod, 96 

 Sublingual salivary gland, 386 

 Subintestinal vein, 9, 370, 373, 375, 376 

 Submaxillary salivary gland, 386 

 Submental artery, 358 

 Subnasal cartilage, 131 

 Subocular arch, 130, 131 

 Subopercle, 88, 94, 106 

 Suborbital bone, 127 

 Suborbital fenestra, 76 

 Subpharyngeal gland, 199, 379 

 Subscapularis, 424, 433 

 Subthecondont, 249 

 Superficial temporal artei-y, 354 

 Superficial cleavage, see meroblastic 

 Superficial ophthalmic branch of facial 



nerve, 387 

 Superior branchial sinuses, 365 

 Superior coUiculi, 384, 386 

 Superior gnathal cartilage, 84 

 Superior mesenteric artery, 367 

 Superior oblique muscle, 422 

 Superior ophthalmic vein, 361 

 Superior rectus muscle, 422 

 Superior sagittal sinus, 360 

 Superior temporal fenestra, 71 

 Superognathal plate, 127 

 Supinator, 428, 433, 436 

 Supporting cell, 406 



Supraangular, 80, 85, 86 

 Supraapical cartilage, 131 

 Suprabranchial, 96, 107 

 Supracardinal, 369 

 Supracleithrum, 179, 181, 184 

 Supracoracoid cartilage, 177 

 Supracoracoid foramen, 174, 177 

 Supracoracoideus muscle, 424, 432, 436 



pars infraspinatus. 424 



supraspinatus, 424 

 Supradorsal cartilages, 161 

 Supramandibula, 128 

 .Supraoccipital, bone, 37, 44, 61 



connective, 410 



in fossil amphibia, 87 

 Supraoptic nuclei, 384 

 Supraorbital bone, 105 

 Supraorbital artery, 357 

 Supraorbital cartilage, 122 

 Supraorbital sensory line, 410 

 Suprapremandibula, 128 

 Suprapreopercle, 106 

 .Suprarenal gland, 381, 382 

 Suprarenal sinus, 314, 375 

 Suprascapula, 173 

 Supratemporal, 61, 85, 94, 96 

 Supratemporotabular, 105, 106 

 Sutures, true and false, 4 1 

 Suspensorium, 106, 114 

 Suspensory ligament, of lens, 404 



ovary, 321 

 SWAMMERDAM, 2 

 Swim bladder, 282. 285. 286, 329, 410 



ossified, 283 

 Sympathetic division of autonomic system, 



381, 387 

 Symphysis, 42 



Symplectic, 95, 106, 107, 115 

 Synapse, 386 

 Synapsid type, 76, 89, 91 

 Synapticulae, 11. 197 

 Synarthroses. 41 

 Synhrarichus, 288 

 Synchrony of cleavages, 195 

 Synchondrosis, 42, 94, 106, 107 

 Syncytium, 203, 378 

 Syndesmosis, 42 

 Synoicum, 9 

 Synonym. 441 

 Synostosis. 41 



Synotic tectum, 108, 122, 129 

 Synsacrum, 149 

 Syrinx. 347 

 Systematics, 442 



arch, 343, 347 



Tabular, 76, 85, 94 



Tachyglossus (see also monotreme), 22, 29, 44, 

 '57. 172,218,220, 293, 320,402 



chondrocranium, 57 



external appearance, 29, 29 



head skeleton, 46, 48, 50 



renal circulation, 369 



stomach, 257 



urogenital systems. 321 

 Taenia medialis, 108 

 Tail fold. 203, 205 



Tail types, 169 

 Talpa, 254 

 Talus, 173 

 Tangasaurus, 1 76 

 Tarsal, tarsale, 172, 173 

 Tarsometatarsus, 28 

 Tasmanian wolf, see Thatacinus 

 Taste buds, 386, 404 

 Tectum posterior, 51, 54 

 Teeth, see tooth 

 Tegmentum, 384 

 Tegmen tympani, 51 

 Telencephalon, 383, 384 



evolution of nuclei, 389 

 Teleostome, 128 

 Teleost, 20, 105, 205, 211, 381, 420 



chondrocranium. 110 



development, 206 



digestive tract, 266, 267 



external anatomy, 25 



fin rays, 243, 244 



gill vessels, 352 



head skeleton of, 105, 107, 110, 112 



hyomandibula, 113 



inner ear, 409 



kidney, 304, 305, 306 



muscles, eye, 423 



prototrichs or pearl organs, 226 



reproductive system, 329, 330 



swim bladder, 225, 284 



vertebrae, 158 

 Telolecithal egg. 193. 194, 201 

 Temnospondylous vertebrae, 155 

 Temporal canal. 46, 49 

 Temporal (sensory-canal) division, 410 

 Temporal fossa, 41. 49 

 Tensor foscial latae, 428 

 Tentacles, 14, 23 

 Tentacular rod, 132 

 Tentorium, 41. 44 

 Tensor fasciae latae, 428 

 Teres major, 424. 432 

 Teres minor, 424, 436 

 Terminal nerve (0), 386 

 Terminal recess, 292 

 Terminal sinus, 205 

 Terminology, 36, 37, 442 

 Terrapene, 69 

 Tertiary, 62 

 Testis, 299, 318 



descent in pig, 320 



ducts, anurans, 302 

 Testiconda, 320 

 Testicules, 325 

 Tetrapods, 21, 188, 192, 290, 402 



head skeleton, 91 



inner ear, 409 



origin of, 444 



perilymphatic sac, 409 

 Tibia. 172 

 Tibiale, 173 

 Tibialis anterior. 430 

 Tiger. 291 

 Tiliqua, 21 1 

 THACHER. 186 

 Thalaanus, 255 

 Thalamus, 384. 386 



476 



INDEX 



