IAD EX. 



709 



Halicore, 596 

 Halistemma carum, 70 

 Halophila borealis, 180 

 Halyclystus auricula, 64 

 Haplodon rufus, 585 

 Haplophyllia paradoxa, 84 

 Hare, varying, 586 

 Harmony between animals and 



their surroundings, 675 

 Harvest-men, 342 

 Hatteria, 511 

 Hearing, organs of, 250 

 in mollusks, 250 

 in insects, 326 

 Heliopora coerulea, 85 

 Heliozoa, 27 

 Helix albolabris, anatomy of, 



245 



Hell-bender, 479 

 -Heloderma horridum, 504 



suspectum, 504 

 Hemiaster cavernosus, 121 



Philippii, 121 

 Hemippus, 604 

 Hemiptera, 349 

 Herring, 450 

 Hesperornis, 538 

 Hessian fly, 357 

 Heteromita, 33 

 HeterodontidjE, 416 

 Heteropoda, 250, 253 

 Hexapoda, 344 

 Hexatliyridium pinguicola, 152 



venarum, 152 



Himantopus nigricollis, 545 

 Hipparion, 602 

 Hippocampus, 443 

 Hippocampus minor, 618 

 Hippopotamus, 605 

 Hirudinea, development of, 209 



structure of, 206, 218 

 Hoasin, 547 



Holocephali, characters of, 424 

 Holopus, 104 



Holothuria edulis, 135 



Floridaua, anatomy of, 131 



Holothuroidea, 126, 136 



Homology, 12 



Homo sapiens. 624 



Horned toad, 503 



Horn-tail, 380 



Horse, genealogy of, 602 

 races of, 604 



House-fly, 354 



Humming-bird, 551 



Hyalonenia boreale, 48 



Hybocodon, 60 



Hybrid ducks, 543 



Hybridity, 657 



Hydatids, 158 



Hydra, anatomy of, 52 



development of, 56 

 vulgaris, 52 



Hydractiuia 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 

 Hy lodes Martiuicensis, 485 

 Hymenoplera, 359, 367 

 Hyocrinus, 102 

 Hyoganoidei, 431 

 Hyperia, 68, 291 

 Hyperoartia, 410 

 Hyperotetra, 410 

 Hypobythius calycodes, 392 

 Hypodermis, 289 

 Hyracoidea, 599, 629 

 Hyrax, 599 



IBLA, 273 



Ichneumon -fly, 361 

 Ichthyopterygia, 511, 517 

 Ichlhyornis, 538 

 [chlhyosaur, 512 



