Subject Index 



Lateral — (Continued) 



vein, 73 

 Lateral-line canal, 165, 167 



organs, 164, 165, 166, 195, 420, 442, 451 

 Lateralis nerve, 161, 165 

 Latimeria, 420, 425 



Latissimus dorsi (muscles), 95, 100, 583 

 Law (see also Principle, Theory) 



of biogenesis, 349 



Mendel's, 352 



of recapitulation, 7, 298, 299, 349, 380 

 Layer(s), choroid, 201, 202 



germ-, 251, 252, 256-258, 261, 262, 263, 

 264, 265, 288, 289, 291, 298 



horny, 18, 19, 307, 463 (see also Stratum 

 corneum) 



mesodermal, 268, 269, 277, 292 



odontoblast, 38, 40, 42, 47 



parietal, 283 



sclerotic (sclera), 117, 201, 202, 203, 

 533, 681 



somatic (parietal), 269, 270, 278, 279, 

 281 



visceral (splanchnic), 269, 270, 278, 281, 

 283 

 Leg(s), 94, 511, 566, 569 (see also Forelegs, 



Hindlegs) 

 Legless lizards, 486, 488 

 Leibnitz, 339 

 Lemur(s), 294, 768, 783 



flying, 736, 738 

 Lemuroidea, 768 

 Lens, 201, 202, 273, 476, 684 



capsule, 684 

 Leopard, 747 



frog, 458 

 Lepidosiren, 437 

 Lepidosteus, 432 

 Leukocyte(s), 63, 65. 329 



mononuclear, 329 



polymorphonuclear, 329 

 Levator muscles, 92, 96, 162, 163 

 Life, definition of, 3 

 Ligament (s), 127, 321 



cartilages in, 132 



costocoracoid, 132 



gubernacular, 655 



interclavicular, 132 



laryngeal, 612 



stylohyoid, 99, 607 



styloid, 122 



suspensory, 22, 203, 683 

 Limb-bud, 93 

 Limbs, pectoral, 128, 133 



pelvic, 128 

 Linea alba, 588 

 Lingual glands, 636 



nerve, 178 

 Linnaean binomial, 390 

 Lion, 43, 584, 747 

 Lips, 100 



Liver, 6, 14, 29-35, 32, 74, 183, 185, 216, 

 287, 530 



development of, 29, 31, 258, 276, 281 



functions of, 35 



Lizard (s), 61, 128, 229, 238, 244, 245 

 484, 487, 488, 490 



flying, 800 



legless, 486, 488 

 Llamas, 757, 758 

 Lobe(s) of brain, 145, 151 



electric, 441 



frontal, 177, 706 



lateral, 151, 712 



of lungs, 287 



median, 712 



occipital, 177, 706 



olfactory, 144, 145, 148, 198, 710 



optic, 150, 534, 535, 536, 537 



parietal, 706 



of pituitary, 224, 225, 226 



temporal, 177, 706 

 Lobe-fin fishes, 420 

 Lobule, lung, 616, 617 

 Locomotion, 804, 805 



Locomotor appendages (see Appendages) 

 Longissimus capitis muscles, 592 



cervicis muscle, 592 



dorsi muscle, 589, 592 

 Longus capitis muscles, 592 



colli muscles, 592 

 Loons, 545, 547, 556 

 Loop of Henle, 86 

 Lophodont, 53 



Lorenzini, organs (ampullae) of, 165 

 Lumbar curvature, 4, 109 



muscles, 591 



nerves, 177 



plexus, 172, 177 



vertebrae, 4, 109, 596 

 Lumbosacral enlargement, 152 



plexus, 172 

 Lung(s), 14, 56, 58-62, 71, 167, 174, 183, 

 185, 198, 214, 285, 287, 445, 465, 

 495, 520 



of amniotes, 618-621 



of birds, 519-525 



of cetaceans, 618 



development of, 59, 60, 258, 276 



and gills, correspondence of, 359 



lobes of, 287 



lobule of, 616, 617 



of mammals, 616—621 



of reptiles, 619, 620 



structure of, 59 



tubular, 620 

 Lung-sac, 60, 437 

 Lungfish(es), 19, 55, 151, 198, 306, 437 



Australian, 55 

 Lutra, 747 

 Lymph, 63, 330 



-heart, 632 



movement of, 632 



-nodes, (-glands), 63, 66, 634 



sinus, 66 

 Lvmphatics, 30, 63, 65, 67, 68, 632, 633, 



634 

 Lymphocyte, 329 

 Lymphoid tissue, 633 

 Lynx, 747 



