INDEX. 



t)79 



Iclithydium, 295 

 Ichthyobdella, 321 

 Ichthyodolurites, 570 

 Ichthyophis, 585, 587 

 Ichthyopsida, 555 

 Iclithyosauria, 594 

 Ichthyotomi, 572 

 Icteridae, 616 

 Icterus, 616 

 Idiothermous, 115 

 Idotea, 441, 442 

 Idoteidas. 442 

 Idyia. 264 

 Iguanida;, 599 

 Ilium, 528 

 Ilyanassa, 379 

 Imaginal discs, 476 

 Impennes, 615 

 Impregnation, 147 

 Inbreeding, 29 

 Incisor teeth, 625 

 Incus, 525, 544 

 Indirect cell division, 68 

 Indirect development, 160 

 Tnei-mes, 317 

 Infrabasalia, 340 

 Infundibulum, 534 

 IiigUivies. 106, 467 

 Iiiia, 645 



Inorganic bodies, 133 

 Inquilines, 486 

 Insecta, 458 

 Insectivora, 637 

 Insects, cleavage of egg, 155 

 Iiitegripalliata, 367 

 Interambulacral platj, 335 

 Intercalaria, 516 

 Interfilar substance, 62 

 Interhyal bone, 561 

 Intermaxillary bone, 525 

 Intermedium, 529 

 Interorbital septum, 560 

 Interparietal bone, 619 

 Interradius, 246 

 Intervertebral ligament, 519 

 Intestine, 106 

 Invagination, 156 

 Inversion of retina, 541 



Iris, 130, 131 



Irritability, 62 



Ischial callosities, 651 



Ischium, 528 



Isinglass, 573 



Isis, 259 



Isodont hinge, 359 



Isopoda, 440 



Isoptera, 478 



Itch, 454 



Iter, 534 



lulid^, 497 



lulus, 497 



Ixodes, 454 



Ixodidse, 454 



Jacobson's organ, 539 

 Jassidae, 490 

 Jays, 616 

 Jigger, 494 

 Jugal arch, 526 

 Jugal bone, 526 

 Jugulares, 562 

 Jugular vein, 549 

 June bug, 484 

 Jurassic, 180 



Kaliima, 47 

 Kangaroos, 634 

 Karyokinesis, 68 

 Katydid, 481 

 Keyhole limpets, 379 

 Kidneys, 116, 550 

 Kielmeyer, 15 

 Kinetoskias, 324 

 King crab, 444 

 King fishers, 616 

 Kinosternon, 596 

 Kiwi, 613 

 Kcenenia, 449 

 Kolliker, 18 

 Kowalewskia, 506 

 Kowalewsky, 18 



Labial cartilage, 534 

 Labial palpi, 362 

 Labidura, 480 

 Labium, 463, 464 



