34-i 



INDEX. 



Sheath of Sehwann, 129 



Shrew, milk-te -th of, 213 



Sinus : frontal, cthmoidal, and sphe- 

 noidal, 176; maxillary, 172, 176, 178 



Sinus superior of membranous labyrinth, 

 196 



Simis venosus, 269 



Siphonops, viscera, 305 



Siren: horny teeth, 214; intestinal 

 tract, '232 ; trachea, -'.V 1 . 



Sin-nia : palatal plates. -27 ; milk-teeth, 

 213 



Skeli-togenous layer of vertebral column, 

 33 



Skeleton, 30111 



Skin, 16 



Skinks, prrt<>ral arch of, 90 



Skull, 5484 



bones of, 61 : alisphenoid, 75, 79 ; 

 iMsioeripital, 75, 76 ; basisplienoid, 

 75, 76, 79 ; basitemporal, 78. 79 ; 

 epipterygoid, 78 ; ethmoid, 80 ; ex- 

 occipital, 72 77 ; frontal, 70, 75 ; 

 frontoparietal, 74 ; jugal, 83 ; 

 maxilla, 69 79 ; mesopterygoid, 

 69 ; metapterygoid, 69 ; orbito- 

 sphenoid, 75 ; palatine, 69 79 ; 

 palatopterygoid, 61 72; palato- 

 quadrate, 61 72 ; parasphenoid. 

 f>7, 6672, 80 ; parietal, 7079 ; 

 premaxilla, 69 82 ; prefvontal. 76, 

 77 ; presphenoid, 78, 80 : ptervgoid, 

 6981 ; quadrate, 61, 7079^ 202 ; 

 quadratojugal, 72, 74; squainosil, 

 71_83 ; supraoecipital, 68, 69, 76, 

 77, 79 ; symplectic, 61, 66, 69, 70; 

 transverse, 75 -77 ; turbinals, 81, 

 172, 175177 ; vonu-r, 6979 

 bones of mandible : angular, 70, 76, 

 79 ; arti'-nlar, 70, 76, 79, 202 ; core- 

 noid, 70, 84, 87 ; 

 79, 84; splenial, 

 angular, 78, 79 



Somatopleure, 9 



Somites, 9, 54 



Spatularia: vertebral column, 35; ribs, 

 48 



Spelerpes, tOUgUe, 74, 22-'! 



Spc-rmatoxoa, ">. 300 



Spliinetcrs of intestine, 209 



Spina seapuhe, 91 



Spiuacliia, nost of, 302 



Spinal cord, 1_!!> 



Spinal nerves. 1 .">_' 



Spiracle. 65, 198, 216 



Spiral valve of intestine, 229 



Splanchnopleure, 9 



Spleen, 294 



Spots, blind and yellow, of retina, 189, 



I'.HI 



Spouting apparatus of Oyninophiona, 179 

 Sqiialiche, i-oiinectinn of skull with Ver- 



tebral eolnnin, ' I 

 Sonatina, number of vertcbr.e, 37 



dcntary, 70, 76, 

 78, 84; supra- 



Stapes, 70, 198, 202 



Stegosaurus : dermal skeleton, 32 ; brain, 



147 



Stomach, 209, 228236 

 Stork, thymiis and thyroid, 227 

 Stylo-hyoid ligament, 84 

 Stratum c'orneum and Malpighii, 16 

 Structural elements, 1 

 Snbdnral space, 136 

 Suhlingua, 223 

 Sub-pulmonary chamber, 259 

 Suctorial organs, 85, 212 

 Sulci, 132 

 Supination, 108 

 Suprarenal bodies, 161, 320 

 Suspeusorium, 65, 70 

 Sympathetic, 160 

 Symphysis pubis, 98 

 Syrinx, 255 



T. 



Tactile cells, 167 



corpuscles, 168 



Tamandua, cervical vertebrae, 46 

 Tapetum, 186 

 Tarsus, 102, 105109 

 Taste, organ of, 167 

 Teats, 27 

 Teeth, 212220 

 Teeth, horny, 214 

 Telaj choroidere, 136 

 Temporal fossa, 83 

 "Tentacle," of Gyninophioua, 179 

 Testis, 311326 

 Testudo : dermal skeleton, 32 

 Thecodont dentition, 215 

 Thoracic duct, 293 

 Tliymus gland, 226 

 Thyroid cartilage, 255 257 

 Thyroid gland, 225 

 Tibia, lot 

 Tihiale, 104 

 Tiliio-tarsus, 107 



'I'JSSUeS, ] 



Tongue, 222 



muscles of, 119 

 Tonsils, 239, -J'.i:; 

 Tooth-structures, H2 

 Torpedo, electric- organ, 124 

 Trabecula- cranii, 57, 70 

 Trachea, -J52 



Tragus, 198 



Trigla : spinal cord, 131 



Triton, dorsal tin, 85 



Truncus arteriosus, 269, 279, 280, 282 



Tiilicivulum impar, 2-J5 



Tubules, of kidney, 29J 



'I'uiiii'a vaginalis, 326 



Tupaia, abdominal muscles, 117 



Turbinals: of Amphibians, 172 



tiles, 1 7 1 

 81, 176 



of Rep 

 of Birds, 175 ; of Mammals, 



