Papil'la (pl. papillæ): a small nipple-like process, as the papillæ of the skin or tongue. Parasite: 93. Parthenogĕn'esis: 35. Pělǎg'ic: inhabiting the surface of mid-ocean. 160. Pharynx: 42. Physiology: 39. Plǎt'yrrhine: broad-nosed; said of the New-World monkeys. Pluteus: 59. Polygamous said of animals in which a single male mates with sev eral females: 35. Polymorphism: 24. Pol'yp: 21. Post-embryonic: 49 Præco cial (pre-co'-shal): 79. Prěd'atory feeding on other animals. Prō'polis: 84. Protective resemblance: 107. Prō toplasm: 2. Proventriculus: 42. Pseudopod: 4. Psy chic: 140. Pu'pa: 57. Reason: 139. Recognition mark: 77, 115. Rěc'tum: 42. Reflex action: 127. Reproduction: 67. Respiration: 4. Reticulum: 42. Rět ina: 123. Ru'men: 42. Salī'va: 42. Sensation: 67. Sensorium: 126. Silica: the mineral of which quartz, sand, flint, etc., are composed. Spawn, v.: to lay eggs. Specialization: 41. Species: 151. Sperm cell: 20. Spiracle: one of the breathing openings of an insect situated on the side of the abdomen or thorax. Spon'gin: 20. Stimulus (pl. stimuli): that which excites action in plant or animal tissue. Stra'ta: layers, usually said of rocks. Strídula tion: 122. Sub-species: 151. Symbiosis: 90. Tactile referring to the sense of touch. 118. Tadpole: 58. Těn'tacle: a protruding flexible process or appendage, usually of the head of invertebrate animals, being used as an organ of touch, prehension, or motion. Těrmitŏph'ilous: said of insects inhabiting the nests of termites. Vǎc'uole: a minute cavity containing air, water, or a chemical secretion of the protoplasm, found in an organ, tissue, or cell. Vestig'ial: 82. Vis'cera: the organs in the great cavities of the body, commonly used for the organs in the abdominal cavity. Yōlk (yōk): 48. Zoē'a: 59. Zōogeography: 147. Zō oid: one of the more or less independent members of a colonial or compound organism. Zōŏl'ogist: a student of animals. INDEX Abomasum, 68. Angler, deep-sea (illus.), 124. Actinocephalus oligacanthus (ill.), Animals, life of simplest, 1; many- 14. Adaptations, 113, 123; classifica- celled, 2; one-celled, 2; slightly Anosia plexippus, metamorphosis Albula vulpes, metamorphosis of Antrostomus vociferus (illus.), 203. (illus.), 98. Alimentary canal, 66; of cock- Amaba polypodia (illus.), 8. Andrena, nest of (illus.), 160. Ants (illus.), 155. Appearance, terrifying, 212. Auditory organs, 232. Barbadoes earth, 19. Barnacle, adult and larva (illus.), Barrier, mountains a, to distribu- | Canal, alimentary, 66. tion, 293; sea a, to distribution, Barriers affecting fresh-water ani- Birds, nest-making habits of, 264. Cankerworm-moth (illus.), 59. Cave blind-fish (illus.), 282. Cell, animal, 2; egg, 21, 56; plant, Cellulose, 24, 27. Centiped (illus.), 130. Cerura, larva of (illus.), 216. Chick, embryonic stages of (illus.), 87. Bittern, nestlings of (illus.), 246, Chitin, 91. 247. Blastoderm, 82. Blastula, 82. Brain, 241. Budding, 13. Bumble-bee, 159, (illus.), 161. Bush-tit, nest of California (illus.), Butterfly, egg of (illus.), 79; mon- Cæcum, 68. Calcolynthus porimigenius (illus.), 33. Calf, taste buds of (illus.), 229. 136. Camponotus (illus.), 155. Canada jay (illus.), 138. bution of (illus.), 273. Chlorophyll, 24. Chologaster agassizi (illus.), 282. Chromosome, 3. Chrysalid of butterfly, showing Chyle, 68. Climate, influencing distribution, Canadian skipper butterfly, distri- Cocoon of Cecropia moth (illus.), 141. Colon, 68. Dead-leaf butterfly (illus.), 211. Colonial jelly-fishes, 45; Protozoa, Death, 103. Deep-sea angler (illus.), 124. Degeneration, causes of, 197, 198; 64. Cottony cushion scale (illus.), 142. Diodon hystrix (illus.), 134. with sea-anemone (illus.), 177. Cricket, auditory organ of (illus.), Cricket, mole (illus.), 146. Crinoid (illus.), 305. Crop, 71. Crowd of animals, 114. Crustaceans, adults and larvæ (illus.), 195. Dismal Swamp fish (illus.), 282. Cteniza californica, nest of (illus.), Division of labor, 22, 168. 261. Cycle, life, 78. Cypselurus (illus.), 131. Cyst, 15. Cytoplasm, 3. Dog, pointer (illus.), 256. Duration of life, 101. |