INDEX 



427 



Lingula, 314. 



Linin, 32, 37. 38, 73, 75. 



Linkage, 250, 251, 255 



Linnaean society of London, 342 



LinnsDan system, 263 



Linnaeus, Carolus, 16, 17, 261, 262 



Linne, Carl von (see Linnaeus) 



Lipase, 144, 145 



Lipoids, 40. 42, 47 



Lipolytic enzymes, 56 



Lister, 167 



Lithobius, 172 



Ldthobius forficatus, 172 



Liver, 117, 118, 120, 154, 222, 225, 227, 

 228; carbohydrates transformed in, 

 147; secretion of, 145, 153; stimula- 

 tion of, 146; urea formed in, 151 



Liver fluke, 182, 183; a parasite, 279 



Lizards, classified, 274; fossil, 310; urino- 

 genital system, 195. (See also 

 Skink.) 



Llama, 329. (See also Auchenia.) 



Lobosa, classified, 268 



Lobsters, 173 



Lock and key hypothesis, 55 



Locomotion, 60, 163; in earthworm, 135: 

 symmetry and, 107 



Locomotor system, 114, 133; in inverte- 

 brates, 133 



Loeb, Jacques, 186, 187 



Longitudinal muscle, 133 



Long skulls, in Europe, 258 



Loose skein, 72 



Loose spireme, 72 



Lumbar region of vertebral column, 136 



Lumbriculus, 241 



Lumbricus terrestris, 184 



Lung, 120, 121, 122, 227, 228, 229; an 

 adaptation, 275; excretion in, 150, 

 151; respiration in, 148, 149; types 

 of, 122 



Lungfishes, classified, 274 



Lycopods, age of, 315 



Lyell, Charles, 340, 341, 342 



Lymnsea, 182 



Lymph, 123 



Lymphatics, fats in, 147 



Lymphatic system, 125 

 Lymph hearts, 125 

 Lymph vessels, 125 



Macrodrili, classified, 269 

 Macrogametes, 174, 176, 177 



Macromeres, 218, 219 



Macronucleus, 81, 178, 179 



Macrosiphurn sanborni, 181 



Madreporaria, classified, 269 



Madreporite, 106 



Maggots, 166 



Main squinado, 140 



Malacostraca, classified, 270 



Malarial organisms, 172 



Mallophaga, classified, 270 



Malpighi, Marcello, 14, 18 



Malpighian corpuscle, 126, 127, 152 



Maltase, 56, 145, 146 



Malthus, Essay on Population, 341, 342 



Maltose, 50, 143, 144, 145, 146 



Mammal, bicornuate uterus and urino- 

 genital system, figure of, 133;urino- 

 genital system of, 131-133 



Mammalia, classified, 271, 274 



Mammalogist, defined, 267 



Mammals, adaptations of, 275, 276; age 

 of, 315; amphibious, range of, 292; 

 birth stages in, 201; classified, 274; 

 copulatory habits of, 193; develop- 

 ment of eggs, 195; embr>^o in, 196; 

 fertilization in, 194; hermaphrodi- 

 tism, 191 ; parental care in, 201 



Mammoth, 310, 311, 322, 323, 335 



Man, digestion in, 143; figure of leg, 134; 

 prehistoric, 335 



Marine animals, 283; adaptations, 276 



Marine hydroids, colonies of, 278 



Marine worms, birth stages in, 202 



Marmosets, 335 



Marsupial frog, egg carrying in, 200, 

 201 



Marsupialia, classified, 271 



Marsupials, 351, 352; of Australia, 353; 

 birth stages in, 201 ; parental care in, 

 201; pouch in, 201 



Marsupium (see Pouch) 



Mastigophora, 64, 175; classified, 268, 271 



Mastodon, 319, 320, 321, 322, 351; tooth 

 of, 322 



Mastodon-elephant scries, 319 

 Maternal chromosomes, 210, 211, 241 

 Matrix, 27, 41 



Maturation, 174, 209, 211, 253, 255; com- 

 parison of, in male and female, 213; 

 first division in female, 212; first 

 division in male, 211; in Protozoa, 

 180; second division in female, 213; 

 second division in male, 212 



