282 



INDEX 



Haematopota (Cleg), 143 



Haematuria, Cause of endemic, 9.~> 



Haemocoele, 126 



Haemoflagellates. See Trypanosomes. 



Haemosporidia, 21, 61-67 ' 



Hag-fish. See Myxhic. 



Hair, 194, 250 



Haliphysema, 34 



" Halzoun," Cause of, 95 



" Harvest-bug " (Microtrombidium), 158 



Harvest-mite (Trombidium), 158 



Heart, 17, 135, 171, 173 (Invertebrata) ; 

 177 (Vertebrata) ; Structure and De- 

 velopment of, 209 



" Heartwater," Cause of, 162 



Hedgehog (Erinaceus), 262 



Heliozoa (Sun Animalcules), 20, 29; 

 Actinophrys, 30 



Helix (Snail), 167, 169 



Hemichorda. See Enteropneusta. 



Hepatic-portal system, 210 



Hermaphroditism, 9, 12 



of Craniata, 214 

 of Earthworm, 115, 118 

 of Leech, 115 

 of Liver-fluke, 93 

 of Mollusca, 166 

 of Platyhelminthes, 89 

 of Snail, 172 

 of Tapeworms, 90, 97 

 of Tunicates, 181, 183, 

 185 



Hetero-aniy, 13, 95, 112. 



Heteronereid, 122 



Heterosyllid, 122, 123 



Hexactinellidae, 67, 68 



Hipp'jbosca, 45, 145 



Hippopotamus, 263 



Hirudo (Medicinal Leech), 114, 123, 125 



Holothuroidea (Sea-cucumbers), 164 



Itonutlomyi'i, x>/n. Frinnln (Latrine-fly). 

 145 



Homologous organs, 1(1 



Homoplasy. See Convergence. 



" Hook-worms," 107 



Morns of Cervidae and Bovidae, 270 



llrnw (Equus), 264, 271 



House-fly (Musca), 145 



Hyaena, 262, 268 



Hydatid, 100 



Ifvdaiid disease, Cause of, 90 



75, 76, 77 

 Hydractinia, 75, 84 

 Hydroid colonies, 81 

 Hydroids, 18, 75 

 Hydromedusae, 75, 81 

 Hydrozoa, 75 



Hypoderma (Warble-fly), 144 

 Hypoblast. See Endoderm. 

 Hypophysis, 201 



Ichthyophis, 16, 232 



Ichthyopsida, 178 



Ichthyopterygium, 194 



Imago, 138 



Infundibulum, 201 



Infusoria, 21, 47-53 



Insectivora, 262 



Insects, 137-155 



and Disease (germ carriers), 138, 



142-147 



Blood-sucking, 138, 142-146 

 Injurious and Beneficial, 138, 155 

 Orders of, 142-146 

 Parasites of Man, 142-146 



Intercellular digestion, 79 



Intracellular digestion, 70, 79 



Invertebrata, 17 ; Classification of, 18 



Investment or membrane bones, 199, 

 234, 235 



Isogamy, 59 



Ixodidae. See Ticks. 



" KALA-AZAB " FEVER, Cause of, 45, 146 

 Kangaroo (Macropus), 261, 267 

 Karyokinesis or Mitosis, 7 

 Katabolism, 5 

 Kedani or river-fever of Japan, Cause of, 



158 



l\ cro nn, 53 

 Kidney of Crayfish, 135 ; of Snail, 171 ; 



of Anodonta* 173; of Vertebrata, 



212, 213 

 King-crab. See Limulus. 



LACEBTILIA (Lizards), 239 

 Lacunar circulation, 165 

 Lamellibranchiata or Pelecypodn 



valves), 167 



Lamprey. See Petromyzon. 

 Larva, 82,214 



of Amphibians, 231, 232 



