INDEX 



575 



Sinus-feathers, 28 



hairs, 30 



rhoraboidalis, 198 



venosus, 395 

 Skeletogenous layer of vertebral column, 



45 



Skin, 17 

 Skull, 74 



bones of, 82 



Slime-sacs, in Mvxinoicls, 19 

 Sole-horn, 32 

 Somatopleure, 8 

 Spermary, 450 

 Spermatophores, 474 

 Spermatozoon, 3, 451 

 Sperm-cell, 3 



sac, 4(35 



Sphenoidal fissure, 129 

 Sphincter oculi, 287 

 Spina scapula?, 144 

 Spinal cord, 195, 198 

 Spines, neural and haemal, 49, 50 



of Porcupine, 31 

 Spino-occipital nerves, 231 

 Spiracle, 88, 105, 294, 356 

 Spiracular cartilages, 88 

 Spiral valve of intestine, 335 

 Splanchnocranium, 75, 80 

 Splanchnopleure, 8 

 Spleen, 435 

 Spongioplasm, 3 

 Spots, blind and yellow, of retina, 284, 



285 



Stapedial plate, 98, 298 

 Stapediua muscle, 303 

 Stapes, 133, ?03 



Stegokrotaphic type of skull, 113 

 Sternebr*, 73 

 Sternum, 12, 67, 70 

 Stomach, 310, 335 

 Stomoditum, 6, 308 

 Stratum corneum, 17 



germativum, 17 



Malpighii, 17 

 Subarachnoid space, 197 

 Subdural space, 196 

 Sublingua, 331 

 Submucosa, 308 

 Subnotochordal rod, 47 

 Suctorial mouth, 352, 359 

 Sulci, 201, -2-2.-) 

 Superior vermis, 229 

 Supination, 169 

 Supraclavicle, 141 

 Supracondyloid foramen, 168 

 Supradorsals, 49 

 Suprarenal bodies, 492-496 

 Suprascapula. 71 

 Supratemporal arcade, 100 

 Suspensorium, 81 

 Swim-bladder, 351, 361 

 Sylvian aqueduct, 204 

 Sylvian fissure, 228 

 Sympathetic nervous system, 247 



Symphysis pubis and ischii, 154 

 Symplectic, 82 

 Synangium, 395 

 Syrinx, 369, 370 



Tactile cells and corpuscles, 255 

 Tail, 13 

 Tail-fold, 9 



Tapetum lucidum, 280 

 Tarsalia, 161 

 Tarsometatarsus, 168 

 Tarsus, 160 

 Taste, organs of; 254 

 Teats, 35 



Tectospondylic vertebra, 51 

 Tectum synoticum, 83 

 Teeth, 40, 94, 96, 112-119, 123, 135, 

 313-324 



horny, 86, 105, 315, 316 

 Telencephalon, 199 

 Tendons, 175 

 Tensor choroideae, 275 

 Tentorium, 197 

 Testis, 450 

 Thebesian valve, 413 

 Thecodont dentition, 316 

 Thoracic duct, 432 

 Thread-cells in Myxinoids, 19 

 Thrombocytes, 394 

 Thy m us, 6 



Thyro-hyal ligament, 135 

 Thyroid, 6, 331 



cartilage, 135, 371 

 Tibia, 160 

 Tibiale, 161 

 Tibiotarsus, 368 

 Tissues, 2 

 Tongue, 327 



muscles of, 188 

 Tonsils, 436 

 Tori, 3-2 



Tortoiseshell, 25 

 Trachea, 362 

 Tragus, 307 



Truncus arteriosus, 395 

 Trabecula? cranii, 76 

 Transverse process of vertebra, 49 

 Triconodont tooth, 322 

 Tricuspid valve, 411 

 Tritubercular tooth, 322 

 Trochanters, 168 

 Tropibasic type of skull, 77 

 Trunk, 12 ' 

 Tuber acusticum, 242 

 Tuberculum, 68, 69 



impar, 329 

 Tuber ischii, 154 

 Tubules of kidney, 445, 446 

 Tunica vaginalis, 482 

 Turbinals, 264, 265, 266, 268 

 Tusks, 324 



