862 



INDEX 



Invagination. 126 



Inversion, 685 



Invertebrates, higher, 236-359 



lower, 148-235 

 Inverted eye, 207 

 Involution, 129 

 Iodine, 53 

 lodopsin, 580 

 lonone, 108 

 Ions, 19 

 Iris, 576 



Irritability, 14, 103 

 Ischial callosities, 740 

 Ischium, 401, 512 

 Islets of Langerhans, 521, 615 

 Tsolecithal egg, 126 

 Isopoda, 305, 836 

 Isoptera, 316, 837 

 Isospondyli, 839 

 Isotonic solution, 52 

 Isotope, 20 

 Isthmus of Panama, 701 



Jacana, 483 



Jaundice, 521 



Java man, 745 



Jaw joint, mammals, 466, 511 



reptiles, 465 

 Jaws, 222, 432 

 Jeffersons salamander, 449 

 Jejunum, 521 

 felly coat, 131 

 Jellyfish, 181 

 Joint, 97 

 Jordan's rule, 733 

 Jugular vein, 410 

 Jurassic period, 723 

 Juvenilizing hormone, 330 



K 



Kala-azar, 814 



Kangaroos, tree-climbing, 784 



Kappa particles, 163 



Keel, 474 



Keratin, 96, 453, 502 



Keratosa, 832 



Ketone bodies, 616 



Key, taxonomic, 143 



Kidney tubule, 93, 411, 454, 563 



Kidneys, 92, 477, 562 



evolution of, 559 

 Killer trait, 162, 690 

 Kinesis, 340 

 Kinetic energy, 47 

 King crab, 320 

 Kingdom, 141 

 Kinorhyncha, 231, 833 



Kiwi, 481 



Koala bear, 492 



Krebs citric acid cycle, 72 



Labia majora, 570 



Labia minora, 570 



Labiata, 291, 305-320, 836 



Labium, 292 



Labor, 572 



Laboratories, marine biological, 1 1 



Labyrinthodonts, 447, 723, 840 



Lacertilia, 459, 840 



Lacrimal duct, 579 



Lactase, 81 



Lactose, 26, 524 



Lagena, 582 



Lagomorpha, 501, 842 



Lamarck, Jean Baptiste de, 697 



Lamarckism, 697 



Lamprey, commercial damage by, 431 



reproduction, 430-431 



respiratory system, 430 



structure, 429 

 Land, classification of, 823 

 Landsteiner, K., 544 

 Large intestine, 521 

 Larvacea, 385, 392, 839 

 Laryngotracheal chamber, 407 

 Larynx, 510, 532 

 Latent period, 101 

 Lateral line sensory system, 433, 448, 581, 



582 

 Lateral plate, 643 

 Latigastra, 835 

 Latimeria, 444, 840 

 Latissimus dorsi, 514 

 Law of Independent Assortment, 652 

 Law of Segregation, 651 

 Leeches, 269, 282, 799 

 Leeuwenhoek, Antony van, 148 

 Leishmania. 832 

 Lemmings, 774 

 Lemur, 842 

 Lemuroidea, 494, 842 

 Lemurs, 494, 738 

 Lens, 250, 311, 576 

 Lepidoptera, 316, 837 

 Lepidosauria, 840 

 Lepidosiren, 840 

 Lepisosteus, 440, 839 

 Lepornis, 839 

 Lepospondyli, 840 

 Leptasterias, 370, 838 

 Leptostraca, 836 

 Lepus, 842 

 Lethal genes, 679 

 Leuconia, 832 

 Leuconoid sponges, 1 73 



