709 



Halicore, 596 



Halistemma carum, 70 



Halophila borealis, 138 



Halyclystus auricula, 64 



Haplodon rufus, 585 



Haplophyllia paradoxa, 84 



Hare, varying, 586 



Harmony between auiinals and 

 their surroundings, 675 



Harvest-men, 342 



Hatteria, 511 



Hearing, organs of, 250 

 in mollusks, 250 

 in insects, 326 



Heliopora ccerulea, 85 



Heliozoa, 27 



Helix albolabris, anatomy of, 

 245 



Hell-bender, 479 



Heloderma borridum, 504 



suspectum, 504 

 Hemiaster cavernosus, 121 



Philippii, 121 

 Hemippus, 604 

 Hemiptera, 349 

 Herring, 450 

 Hesperornis, 538 

 Hessian fly, 357 

 Heteromita, 33 

 Heterodontidtv, 416 

 Heteropoda, 250, 253 

 Hexapoda, 344 

 Hexatbyridium piuguicola, 152 



venarum, 152 



Himantopus nigricollis, 545 

 Hipparion, 602 

 Hippocampus, 443 

 Hippocampus minor, 618 

 Hippopotamus, 605 

 llirudinea, development of, 167 



structure of, 164, 176 

 Hoasin, 547 



Holocepbali, characters of, 424 

 Holopus, 186 



Holotburia edulis, 217 



Floridana, anatomy of, 213 



Holothuroidea, 208, 218 



Homology, 12 



Homo sapiens, 624 



Horned toad, 503 



Horn-tail, 380 



Horse, genealogy of, 602 

 races of, 604 



House-fly, 354 



Humming-bird, 551 



Hyalonema boreale, 48 



Hybocodon, 60 



Hybrid ducks, 543 



Hybridity, 657 



Hydatids, 116 



Hydra, anatomy of, 52 



development of, 56 

 vulgaris, 52 



Hydractinia echinata, 56 

 Hydroidea, 52, 72 

 Hydrozoa, 52, 71 



classification of, 73 

 nervous system of, 62, 65 

 organs of taste in, 63 

 Hyla Pickering!!, 484 

 Hylobates, 622 

 Hylodes Martiuicensis, 485 

 Hymenoptera, 359, 367 

 Hyocrinus, 184 

 Hyoganoidei, 431 

 Hyperia, 68, 291 

 Hyperoartia, 410 

 Hyperoletra, 410 

 Hypobytliius calycodes, 392 

 Hypodermis, 289 

 Hyraeoidea, 599, 629 

 Hyrax, 599 



IBLA, 273 

 Ichneumon fly, 361 

 Ichthyopterygia, 511, 517 

 Ichthyornis, 538 

 Ichthyosaur, 512 



