INDEX 



739 



Homocercal tail, 481 

 Homocoela, 90 

 Homoiothermal, 638 

 Homology, 13 

 Homoplasy, 13 

 Honey-bee, 256 

 Hoof, 684 

 Hoopoe, 635 

 Hoplocarida, 220, 278 

 Hormiphora, 79, 81 

 Horned pout, 492 

 Horned "toad," 587 

 Hornet, 256 

 Horse, 687, 689 

 Horse-fly, 258 

 Horse-shoe bat, 708 

 Host, 44 



House-fly, 245, 258 

 Huanaco, 696 

 Humble-bee, 256 

 Humerus, 520 

 Hybrid, 9 

 Hydatina, 124, 126 

 Hydra, species of, 49, 50, 51, 53, 54, 56, 

 57; cell of, 52; reproduction of, 58 

 Hydractinia, 68 

 Hydranth, 62 

 Hydra-tuba, 77, 77, 78 

 Hydrida, 81 

 Hydrocoele, 365 

 Hydrocorallinae, 66, 68, 82 

 Hydroid person, 62, 65, 68 

 Hydromedusae, 59, 75, 81 

 Hydromedusan, 65 

 Hydrozoa, 67, 81 

 Hyla, 547, 559, 562 

 Hylidae, 558, 559, 562 

 Hylobates, 712, 727 

 Hymenoptera, 246, 248, 250, 255, 281 

 Hyoid, 455, 531, 550 

 Hyoidean artery, 462 

 Hyomandibular, 456, 478, 500, 503 

 Hyoplastra, 594 

 Hyostylic, 457 



Hyperpharyngeal groove, 400 

 Hypo-branchial segment, 457 

 Hypogeophis, 560, 562 

 Hypoglossal nerve, 539 

 Hypohyal, 478 



Hypopharyngeal groove, 400, 408 

 Hypopharynx, 245, 257 

 Hypoplastra, 594 

 Hyracidae, 684, 722 

 Hyrax, 684, 685, 722 

 Hystricidae, 705 

 Hystrix, 701, 725 



Ichneumon, 256 

 Ichthyodorulite, 471 

 Ichthyoidea, 542 

 Ichthyophis, 560, 562 

 Ichthyopterygium, 452 



Ichthyornis, 628 



Ichthyosauria, 604 



Iguana, 576 



Iguanidae, 587 



Ilio-ischiatic foramen, 614, 615 



Ilium, 528, 533, 565 



Image, 198 



Imago, 249 



Impulses, 418 



Incus, 122, 645 



Indian ink, 317 



Inermia, 167 



Infundibular ganglion, 319 



Infundibulum, 428 



Infusions, organisms in, 19 



Ingestion, 5 



Inhalant, 89 



Ink-sac, 317 



Innominate artery, 652 



Insecta, 175, 280 



Insectivora, 669, 720 



Intercalary piece, 459 



Intercentra, 569 



Interclavicle, 576 



Intercoelic membrane, 395 



Intercostal muscles, 577 



Interfilamentar junctions, 302 



Interhyal, 478 



Interlamellar junctions, 302 



Intermedium, 521 



Interoperculum, 480 



Interorbital septum, 470, 571, 616 



Interparietal foramen, 583 



Interradii, 326 



Interstitial cells, 53 



Intertarsal joint, 577 



Intertentacular organ, 378 



Intestine, 137, 428, 429 



Introvert, 170 



Invertebrata, 15 



Iris, 321 



Irritability, 6 



Ischiopodite, 181 



Ischiopubic cartilage, 533 



Ischium, 533, 565, 652 



Isopleura, 298, 323 



Isopoda, 222, 279 



Isoptera, 281 



Isospores, 27 



lulus, 175, 231, 232, 280 



Ixodidae, 268 



Jackal, 675 



Jack-rabbit, 702 



Jaw, 349, 449, 456 



Jelly, 55, 57, 69, 87, 201, 434 



Jelly-fish, 62, 75 



Jugal, 641, 699 



Jugal bone, 479, 574, 616 



Jugular, 489 



Jugular-vein, 535, 620 



Jumping-shrew, 671 



472 



