Index 



711 



Leg, of insect, 530 



of vertebrate, 110 

 Leishmania, 359 

 Lemming, 637 

 Lemniscus, 444 

 Lemur, 630, 635 

 Lens, crystalline, 217, 218, 219 

 Leodice, 454 



Leopard frog (see Rana pipiens) 

 Lepas, 506, 507 

 Lepidoptera, 540 

 Lepidosauria, 603 

 Lepidosiren, 583, 591 

 Lepisosteida, 590 

 Lepisosteus, 569, 582, 589, 590 

 Lepomis, 590 

 Leptocardii, 564 

 Leptosynapta, 553 

 Lepus, 630, 636 

 Lernaea, 506 

 Lethal character, 312 

 Leucocyte, 68, 177-178, 183 

 Leucosolenia, 377, 381 

 Leucon, 379 

 Levers, 117-118 

 Lice, 531, 535 

 Life, criteria, 23, 24 

 origin of, 320-321 

 processes, 154 

 Ligament, 96, 113, 217 

 broad, 261 

 hinge, 472 

 round, 261 



Light, as ecological factor, 650 



Ligula, 521, 522 



Limnology, 660 



Limpet, 468, 471, 476 



Limulus, 489, 510-511 



Linea alba, 119 



Linguatula, 489 



Linguatulida (sec Pentastomida) , 489, 

 515 



Lingula, 482, 484 



Linkage, 312-315 

 sex, 307-311 



Linked genes, 312, 313, 314 



Linin, 268 



Linnaeus, 42, 43, 321 



Lionotus, 372 



Liopelmidae, 596 



Lipase, 139 



Lipid, 31-32, (sec also Fat) 



Lips, 120, 130. 213 



Lithobius, 490 



Littorina, 476 



Liver, 60, 137, 365 

 cirrhosis, 414 



Liver rot, 409 



Lizard, 46, 111, 130, 567, 603, 606-608, 



612, 613 

 Loa, 437 



Lobster (^sce Homarus), 486, 507, 508 

 Locomotion, 78 

 Locus, 302 



Loggerhead, 605, 606 

 Loligo, 477-480, 481 

 Longissimus dorsi, 60 

 Loon, 625 



Loop of Henle, 188 

 Lophius, 589, 590 

 Lophophore, 482, 483 

 Lorica, 439 

 Lovenia, 544, 551, 553 

 Loxodonta, 630 

 Lumbar curvature, 104 



enlargement, 202 



nerves, 204 



vertebrae, 105, 106 

 Lumbar-sacral plexus, 204 

 Lumbricus terrestris, 447, 449, 455-461 



(see also Earthworm) 

 Lumen, 134 



Lung. 62-63, 152-153, 156, 157 

 Lungfish. 165, 569, 583, 587, 591, 592, 



593 

 Lungworm, 461 



Luteinizing hormone (L.H.), 244-245 

 Lycaenops, 626, 627 

 Lyell, 327, 337 

 Lymnaea, 410 

 Lymph, 68, 182, 183 



duct, 68 



heart, 69 



node, 178, 183 



space, 68 



vessel, 183 

 Lymphatic duct, 169, 183 



system, 68-69, 182-183 

 Lymphatics, 182. 183 

 Lymphocyte, 178 

 Lyomeri, 590 



M 



Mackerel, 588, 589, 590 

 Macracanthorhynchus, 445 

 Macrobiotus, 489, 515 

 Macrogamete, 356, 363, 364 

 Macronucleus, 369. 370, 372 

 Macrophage, 177, 183 

 Madreporite, 542, 543, 545, 546, 549, 551 

 Malaclemys, 605 

 Malacostraca, 507-508 

 Malar bone, 102. 215 

 Malaria. 352, 365-367, 518 

 Male, 253 

 reproductive system of frog, 73-74 

 of mammal, 255-259 



