INDEX 



Lvell, Charles, 648 

 I.yoaeus obsole<;cens, 620 

 Lymph. 50, 54, 63, 66 

 Lymph nodes, 54, 64 

 Lymphatic system, 50, 54 

 Lymphatics, 54, 74 

 Lymphocytes, 64, 122 



Mackerel, 559 



Macracanthorhynchus, 355 



Macrogamete, 139, 141; of Plasmodium, 247 



Macronucleus, 248, 250, 254, 255 



Macrophaa;es, 54, 64 



Macula, 109 



Madae;ascar, 425; flia;htless birds of, 579 



Madreporite, of Arbacia, 499, 500; of star- 

 fish, 490, 492, 495 



Maaellama, 364 



Malacostraca, 424, 436, 440; a:reen s;lands, 

 485 



Malaria, 246-248, 476 



Malaria parasite, exo-er\throc\te stas;es of, 247- 

 248; life cvcle, 246 



Male pronucleus, 143 



Male reproductive cells, see Spermatozoon 



Male sex hormone, 122 



Malpighian tubules, 519, 520; of locust, 449, 

 485; of Rhodnius, functional analysis, 450 



Maltase, 72 



Maltose, 26 



Mammal-like reptiles, 580 



Mammalia, 216, 542, 579-591 



Mammals, adapted to desert life, 602; brain, 

 86; circulatory system, 52; compensation 

 for temperature change in, 598; diyersifica- 

 tion of, 591; dominance of, in Tertiary, 

 591; embryonic deyelopment of, 634; em- 

 bryos, 157; endothermy in, 598; lungs and 

 air passages, 55, 56; oviducts, 134 



Mammary glands, 124 



Mammoth, 642; frozen remains of, 621 



Man, 580; anatomical specializations of, 638; 

 ancestry and evolution of, 639; and Pleisto- 

 cene Ice Age, 641; brain, 46, 86; chorionic 

 vesicle, 161; chromosomes, 42; coelomic 

 cavity, 49; coelomic viscera, 49; color 

 blindness, 107; ear, 90; embryo, 157, 161; 

 endocrine glands, 94; evolutionary history 

 of, 637 646; excretory system, 57; eye, 89; 

 fetus, 162; head, 46; heart, 49, 53; mus- 

 cles, 93; olfactory epithelium, 110; pla- 

 centa, 163; reproductive tract, 130; retina, 

 106; retinal rod, 107; skeleton, 91, 92; 

 skin, 83; taste buds, 110, 111; thyroid gland, 

 119 



Mandibles, 423 



Mandibulata, 216, 422, 423, 424 



Mantis shrim[), 440 



Mantle, of ascidians, 546; of chitons, 382; of 

 pelecypods, 370; of squid, 389 



Mantle cavity, of gastropods, 384; of [«•!(•- 



cypods, 371; of squid, 389 

 Marrow cavity, 62 

 Marsupial mole, 609 

 Marsupialia, see Metatheria 

 Marsupials, adaptive radiation of, 608 

 Marsupium, of Metatheria, 579, 582, 583, 



585 

 Mastax, 345, 346 

 Mastioamneha, 242, 243 

 Mastodon, 629, 630, 642 

 Mating types, Paramecium, 256 

 Matrix, 61; in colonial flagellates, 265, 266 

 Matthew, W. D., 591 

 Maturation, 134 

 Maxillae, of butterfly, 465; of crayfish, 426; 



of lobster, 427 

 Maxillary glands, of crustaceans, 485 

 Maxilliped, of crayfish, 426; of lobster, 427 

 Meandrina, 309 

 Mechanical isolation, 653 

 Median eye, 167 

 Medulla oblongata, 89, 96, 102 

 Medusa, 301, 302 

 Meaalobatrachus, 564 

 Megalops larva, 440, 442 

 Meoaplera, 589 

 Meiosis, 136, 143 

 Melanoplus, 445 

 Membrampora, 359 

 Mendel, Gregor, 4, 175; experiments of, 175- 



177 

 Merogonv, 247; in Plasmodium cynomo/(^i, 247 

 Merozoites, 247 

 Mesencephalon, 87, 102 

 Mesenchyme, 61, 284, 314, 323 

 Mesenteries, 48, 77, 129; of Chaetognatha, 



366; of Nereis, 399 

 Mesoblast, 368; of earthworm, 413 

 Mesoderm, 151, 152, 155 

 Mesodermal somites, 155 

 Mesogloea, 288, 528 

 Mesohippus, 627 

 Mesolamella, 528 

 Mesomere, 155 

 Mesonephros, 57, 129 

 Mesorchia, 129 

 Mesosloma, 318, 325, 326 

 Mesovaria, 1 30 

 Mesozoa, 216, 219, 221, 222, 225, 270-272, 



512, 531 

 Mesozoic Era, and dominance of reptiles, 566; 



and rise of birds, 574 

 Metabolic requirements of embryos, 159 165 

 Metabolism, 12, 35-38; in Amoeba, 234; of 



animals, 510, 599, 634; of earthworm, 409; 



of Euolena, 242; of Hydra, 292; of parasitic 



nematodes, 352; vertebrate organ systems 



related to, 47-58 

 Metacercaria, 330, 331 



695 



