558 



INDEX 



hair of Man : direction of, 102, 

 103, 104; racial differences, 100; 

 shape of cross section, 100. 



harderian glands, 504 



hard palate, 270, 271, 479 



Harrimania, 535 



Hatteria, 32 



head cavities, 461 



head, formation of, 124 



head, relation to vertebral column, 

 134 



heart 318, 320, 324, 352-357; of 

 amphibians, 354, 355, 356; of 

 Amphioxus, 353, 528; of fishes, 

 353, 354; of mammals, 356, 357; 

 of reptiles, 356. 



hedgehog, 491 



Heptanchus, 305 



heredity, material basis for, 53, 57, 

 58 



hermaphrodites, 379 



hermaphroditic, 49 



hemispheres, of cerebrum, 411, 413 



heterodont dentition, 275 



Hexanchus, 305 



hibernation of Dipnoi, 478 



hind brain, 411 



hip-girdle, 128 



hippocampus, 417 



Hippopotamus, 274, 292, 505 



Holocephali, 444 



Homo, 87, 88 



homodont dentition, 275 



homology, of body somites, 439 ; 

 of limbs, 177-180, 237-245; sex- 

 ual, 394, 404, 405 



Homo neanderthalensis, 42 



Homo primigenius, 42, 43, 45 



Homo sapiens, 42, 45 



honeycomb stomach, 292 



hoofs, 106, 107 



horn, 78 



horns of mammals, 106 



horny structures, 105, 106 



horse, 182, 250, 391 



horse-shoe crab, 522 



human phylogenesis, 44, 45 



hydatid of Morgagni, 392 



Hydra, 60 



Hydromys, 277 



hyobranchial apparatus, 283 



hyobranchial complex, 160, 283 



hyoid apparatus, 160, 283 



hyoid arch, 155, 157 



hyoid bone, 314; body, 160; 



cornua, separate elements of, 



160, 161 



hyomandibular, 155, 157 

 hyperdactylism, 182 

 hypermastism, 117 

 Hyperoodon, 277 

 hyperphalangy, 183 

 hyperthelism, 117 

 hypertrichosis, 99 

 hypobranchial groove, 289 

 hypospadias, 399 

 hypothenar pads, 91 

 hypocone, 279 

 hypoglossus, 427 

 hypomeres, 64, 65, 190, 245 

 hypomeric muscles, 192 

 hypophysis, 414, 423, 424, 477 

 Hyracoidea, 38 

 Hyrax, 38 



I 



Ichthyopsida, 473 

 Ichthyopterygium, 167, 184 

 Ichthyosaurus, 20, 183, 184, 185, 



186 



ilium, 128, 171 

 immortality of Protozoa, 5 

 incisors, 275 

 incus, 159, 150, 195 

 inferior turbinated bone (see max- 



illo-turbinal) 

 infundibulum, 424 

 ingluvies, 290 

 inguinal ligament, 386, 387, 391, 



395 



inner ear, 469, 472, 473, 485-493 

 insect, insects, 259, 428, 460, 463, 



506, 512 

 Insectivora, insectivores, 37, 40, 



44, 45, 113, 175, 239, 250, 277, 



291, 393, 394, 401, 495, 500 

 insertion, of a muscle, 195, 197 

 integument : of amphibians, 83, 



84; of Amphioxus, 76; of fishes, 



80-83; T>f invertebrates, 76; of 



mammals, 85; of reptiles, 84, 85; 



pigmentation of, 118-121. 

 integumental glands, 78, 107 

 integumental muscles, 190, 192 



