INDEX. 



709 



504 



131 



Halicore, 596 



Halistemma caium, 70 



Halopliila borealis, 180 



Halyclystus auricula, 64 



Haplodon rufus, 585 



Haplophyllia paiadoxa, 84 



Hare, varying, 586 



Harmony between animals and 

 their surroundings, 675 



Harvest-men, 342 



Hatteria, 511 



Hearing, organs of, 350 

 in moUuslis, 350 

 in insects, 336 



Heliopora coerulea, 85 



Heliozoa, 27 



Helix albolubris, anatomy of, 

 245 



Hell-bender, 479 



Heloderma horridum 

 suspectum, 504 



Hemiaster cavernosus, 



Pliilippii, 121 

 Hemippus, 604 

 Hemiptera, 349 

 Herring, 450 

 Hesperornis, 588 

 Hessian fly, 357 

 Heteromita, 33 

 Heterodontidae, 416 

 Heteropoda. 250, 353 

 Hexapoda, 344 

 Hexatliyridium pinguicola, 153 



venarum, 153 

 Himantopus iiigricoUis, 545 

 Hipparion, 603 

 Hippocampus, 443 

 Hippocampus minor, 618 

 Hippopotamus, 605 

 Hirudinea, development of, 309 



structure of, 206, 318 

 Hoasin, 547 



Holocepbali, characters of, 434 

 Holopus, 104 



Holothuria edulis, 135 



Ploridana, anatomy of, 131 



Holothuroidea, 126, 136 



Homology, 13 



Homo sapiens, 634 



Horned toad, 503 



Horn-tail, 380 



Horse, genealogy of, 603 

 races of, 604 



House-fly, 354 



Humming-bird, 551 



Hyalonema boreale, 48 



Hybocodon, 60 



Hybrid ducks, 543 



Hybridity, 657 



Hydatids, 158 



Hydra, anatomy of, 53 

 development of, 56 

 vulgaris, 52 



Hydractinia ecbinata, 56 

 Hydroidea, 53, 73 

 Hydrozoa, 53, 71 



classification of, 73 

 nervous system of, 63, 65 

 organs of taste in, 63 

 Hyla Pickeringii, 484 

 Hylobates. 623 

 Hylodes Marlinicensis, 485 

 Hymenoptera, 359, 367 

 Hyocrinus, 102 

 Hyoganoidei, 431 

 Hyperia, 68, 291 

 Hyperoartia, 410 

 Hyperotetra, 410 

 Hypobytliius calycodes, 393 

 Hypodermis, 389 

 Hyracoidea, 599, 639 

 Hyrax, 599 



Ibla, 373 

 Ichneumon-fly, 361 

 Iclithyopterygia. 511, 517 

 Ichthyornis, 538 

 Ichthyosaur, 513 



