428 



INDEX. 



Hippopotamus, 385 

 Hirudinei, 187 

 Holocephali, 325 

 Holometabola, 241 

 Holothuridea, 282 

 Homocercal fins, 16, 23, 318 

 Homology, 144 

 Homoptera, 258 

 Hornbills, 361 

 Horned pout, 327 

 Horned toads, 346 

 Hornets, 255 

 Horse-mackerel, 331 

 Horses, 384 

 Horseshoe-crab, 231 

 House-fly, 268 

 Howlers, 391 

 Humerus, 38 

 Humming-birds, 362 

 Hya?nas, 388 

 Hydra, 1G7 

 Hydranth, 123, 164 

 Hydride, 167 

 Hydrocaulus, 123 

 Hydroid, study of, IfS, 125 

 Hydroid medusa, study of, 127 

 Hydromedusse, 167 

 Hydrorhiza, 125 

 Hydrozoa, 165 

 Hylida?, 341 

 Hymenoptera, 253 

 Hyoid arch, 19 

 Hyoid bone, 60, 94 

 Hyomandibular, 294 

 Hypertrophy, 70, 77, 215 

 Hypoglossal nerve, 300 

 Hypophysis, 62 

 Hyracoidea, 382 

 Hyrax, 382 



Ibis, 359 



Ichneumon-flies, 254 

 Ichthyopsida, 317 

 Ichthyosaurs, 349 

 Idotea, 230 

 Iliac artery, 56 

 Uiac vein, 56' 

 Ilio-lumbar vein, 56 

 Ilium, 296 



Imago, 262 

 Incisors, 367 

 Individual, 406 

 Ineducabilia, 378 

 Infusoria, 149 

 Injecting, 6 

 Injection mass, 7 

 Ink-sac, 104 

 Insect a, 235 

 Insect ivora, 376 

 Insects, classification, 242 

 Instruments, 3 

 Interambulacral areas, 275 

 Interambulacrals, 113, 115 

 Intercostal muscles, 309 

 Interradial, 110 

 lo-moth, 265 

 Iris, 107, 304 

 Ischium, 296 

 Isinglass, 326 

 Isopoda, 230 

 Isthmus, 24 



Jackals, 388 

 Jellyfish, 16^,173 

 Jugular veins, 50, 58 

 Jumping mice, 376 

 June- bug, study of, 85 

 June-bugs, 252 

 Jurassic period, 414 



Kangaroos, 372 

 Kidneys, 314 

 Kidneys of dogfish, 18 

 Kidneys of fish, 26 

 Kidneys of rat, 56, 57 

 Kiwi, 356, 

 Kogia, 378 



Labrum, 79 

 Lac, 261 

 Lacertilia, 345 

 Lacuna?, 220 

 Ladybugs, 251 

 Lamellibranchs, 202 

 Lampreys, 315 

 Lamp-shells, 190 

 Lancelet, 289 

 Larva, 241, 250,408 



