INDEX 



Fenestra, of skull, 135 

 Filiim terminale, 279 

 Finfold theory, 156 

 Fins, origin, 156 

 Fishes, 35 

 Flexors, 181 

 Flexures of brain, 273 

 Flying adaptations, 169 

 Fontanelles, 138 

 Fossils 



Microscopic anatomy, 334 



Preservation, 332 

 Friction ridges, 123 

 Frog embryology, 52 



Gastrula 



Amniote, 64 



Araphioxus, 22 



Frog, 53 



Placental, 92 

 Generalized, Def., 6 

 Genitalia 



Development, 268 



Female, 262 



Male, 264 

 Geological Periods, 336 

 Geological time table, 335 

 Gila monster, 61 

 Gill pouches, derivatives of, 207 

 Gill slits, 4 



Amphioxus, 17 



Origin, 205 



Primary, 28 



Reptile, 56 

 Gills 



External, 210 



Internal, 207 



Septum, 208 

 Glands 



Digestive, 194 



Endocrine, 316 ff. 



Genital, 268 



Mammalian, 118 



Salivary, 199 

 Glands, types. 111, 112 

 Glans, 264 

 Glomerulus, 251 

 Glossopharyngeal nerve, 298 

 Gonads, 251 



Function, 319 

 Gubernaculum, 267 



Hair 



Distribution, 123 



Structure, 116 

 Hard palate, 132, 303 

 Haversian system, 102, 173 

 Heart 



Cardiac cycle, 236 



Comparative Anatomy, 229 



Dogfish, 222 



Embryology, 232 



Valves, 229 

 Hemichordata, 11, 343 

 Heterocercal tail, 39, 40, 42 

 Heterodont dentition, 139 

 Holoblastic cleavage, 64 

 HolocephaH, 37 

 Holostei, 40, 344 



Dermal bone, 110 

 Hominidae, 84 

 Homocercal tail, 42 

 Homodont dentition, 139 

 Homology, Def., 7 

 Hoofs, 115 

 Horns, 120 



Human skull, 137, 138 

 Hyomandibular, 128 

 Hypaxial muscle, 175 

 Hypoglossal nerve, 299 

 Hypomere, 24, 175, 195 



Ichthyosaurs, 166, 347 

 Igneous rocks, 330 

 Infundibulum, 291 

 Inguinal canal, 267 

 Insectivora, 81 

 Intestines, 201 



Jaws 



Articulation, 146 

 Elasmobranch, 128 

 Evolution, 131 

 Origin of, 144 



Kangaroo, 79 

 Kidney, 256 



Lacertilia, 61 

 Lacteals, 244 

 Lamarck, 323 

 Land bridge, 327 

 Lanugo, 124 



