Animals

Earthworm, alimentary canal of Fish, egg of (illus.), 79; embry

onic stages of (illus.), 87; -louse
(illus.), 188.

Fishes, man-of-war (illus.), 175;
nest-making habits of, 264.
Fission, 9; binary, 54.
Flagella, 25.
Flagellata, 24.

Flatworm, alimentary canal of
(illus.), 70.

Flounder, development of (illus.),
100; wide-eyed (illus.), 100.
Flying fishes (illus.), 131.
Food, adaptations for securing,
125; necessary to animal life,
106.

Form, primitive, 20.

Emmydrichthys vulcanus (illus.), Fossil, 18.

132.

Endoblast, 82.

Endoderm, 33.

Environment, instincts of, 248.
Epizoanthus paguriphilus, with
sea-anemone (illus.), 177.
Erynnis manitoba, distribution of
(illus.), 273.

Eucope (illus.), 42.
Eudorina, 27.

Eudorina elegans (illus.), 28.

Exocatus (illus.), 131.

Fresh-water animals, barriers af-
fecting, 294.
Function, 63.

Fur seal (illus.), 136.

Galapagos Islands, animals of (illus.), 278; locusts of (illus.), 280.

Gall, giant, of white oak (illus.), 143.

Galls, insect, on leaf (illus.), 144.

Gapes, worm which causes, 60.

Eye of dragon-fly (illus.), 239; of Gastrula, 82.

jelly-fish (illus.), 238.

Gemmule, 35.

Generalization, 66.

Fauna, 296; bassalian, 305; littoral, Generation, spontaneous, 51.

306; pelagic, 304. Faunal areas of the sea, 304. Feeding habit of Californian woodpecker (illus.), 128, 129; of Melanerpes formicivorus bairdii | (illus.), 128, 129; instincts of, 244. Female, 57.

Generations, alternation of, 51.
Geographical distribution, 272.
Geometrical larva on branch (illus.),
209.

Gerrhonotus scincicauda (illus.),
204.

Giraffe (illus.), 126.
Gizzard, 71.

Globigerina-ooze, 18.

Globigerinæ, 16.

Gonium, 25-30.

Gonium pectorale (illus.), 25.

Hydra vulgans (illus.), 38.
Hydrophilus (illus.), 146.
Hyla regilla (illus.), 145.

Grasshopper, auditory organ of Icerya and Vedalia, 121.

Gregarinidæ, 14.

Gregarina polymorpha (illus.), 14. Indo-African realm, 301.

Inorganic matter, 112.

Habitat, relation of species of, 283. Instincts, altruistic, 243; classifi-

Habits, domestic, 257.

Habits, nest-making, of birds, 264;
of fishes, 264; of insects, 262; of
invertebrates, 258; of spiders,
259; of vertebrates, 264.
Hearing, sense of, 232.
Heliosphæra actinota (illus.), 19.
Heredity, 89.

Hermaphroditism, 60.

Hermit-crab, with the sea-anemone
(illus.), 176.

Hibernation, 103.

Hiving honey-bees (illus.), 154.
Holothurian, alimentary canal of
(illus.), 70.
Homes, 257.

Honey-bee (illus.), 150; adult and

larva (illus.), 83; leg of (illus.),
151 life history of, 149.

cation of, 243; concerned with
care of the young, 250; egoistic,
243; of climate, 248; of court-
ship, 248; of environment, 248;
of feeding, 244: of play, 247; of
reproduction, 249: of self-de-
fense, 245; variability of, 251.
Intellect, 254.
Intestine, 68.

Invertebrates, nest-making habits
of, 258.

Irritability, 8, 240.

Island, coral (illus.), 44.
Itch-mite (illus.), 192.

Jack-rabbits, showing variation
(illus.), 281.

Jay, Canada (illus.), 138.
Jejunum, 68.

Honey-bees, hiving a swarm of Jelly-fish, eye of (illus.), 238.

Lady-fish, metamorphosis of (illus.), | Marks, recognition, 22, 129, 223. 98.

Larva, 92; of the mosquito, 93;
of butterfly pupating (illus.), 94;
of the honey-bee, 152.
Leaf-cutting ant mimicked by tree-
hoppers (illus.), 220.
Lemur (illus.), 302.
Lemur varius (illus.), 302.
Lemurian realm, 302.

Lepas, adult and larva (illus.), 195;
metamorphosis of (illus.), 101.
Lerema accius, distribution of
(illus.), 273.

Lernæocera (illus.), 188.
Life cycle, 78.

Life, communal, 168; duration of,
101; primitive, 21; processes,
21; social, 149.

Light, influence of, on animals,

237.

Lipeureus densus (illus.), 188.

Littoral fauna, 306.

Lizard, alligator (illus.), 204.

Lizzia koellikeri, eye of (illus.),

238.

Medusa, 41.
Megalops, 97.

Melanerpes formicivorus bairdii,
feeding habit of (illus.), 128, 129.
Membracidæ mimicking Sauba
ant (illus.), 220.
Mesoderm, 33.

Metamorphosis, 90; of Albula vul-
pes (illus.), 98; of Anosia plex-
ippus (illus.), 92; of barnacle
(illus.), 101; of butterfly (illus.),
92; of crab (illus.), 97; of in-
sects, 90; of lady-fish (illus.),
98; of Lepas (illus.), 101; of
mosquito (illus.), 93; of sea-ur-
chin (illus.), 96; of sword-fish
(illus.), 99; of toad, 94, (illus.),
95; of Xiphias gladius (illus.),
99.

Metazoa, 32.

Metridium dianthus (illus.), 43.
Micro-organism, 16.

Migration of lemming, 118; of lo-
cust, 118.
Mimickry, 218.

Locust, post-embryonic develop- Mind, 255.

ment of (illus.), 91.

Locusts of Galapagos (illus.), 280.

Louse, sucking (illus.), 188.

Macropus rufus, 139.

Mad Tom (illus.), 132.

Male, 57.

Mining-bee, nest of (illus.), 160.

Islands Molt, 91.

Mammals, care of young of, 268.

Manatee (illus.), 277.

Monarch butterfly (illus.), 219;
mimicked by Viceroy butterfly
(illus.), 219.
Monogamy, 135.

Mosquito, auditor organ of (illus.),
235; head of (illus.), 127; meta-
morphosis of (illus.), 93; young
stages of (illus.), 147.

Man-of-war, Portuguese (illus.), Moth, cankerworm (illus.), 59.

175.

Mantis (illus.), 127.

Many-celled animal, 2.

Marine Protozoa, 15.

Mountains as barriers to distribu

tion, 293.

Mouth parts of mosquito (illus.),

127.

Mouse-fish in gulf-weed (illus), 208.
Mt. Orizaba (illus.), 300.
Multiplication, 50; of animals,
114; simplest method of, 53;
slightly complex methods of, 54.
Murres, Pallas's (illus.). 165.
Mussel, alimentary canal of (illus.),
72.

Mutual aid, 163.

Narcine brasiliensis (illus.), 135.
Natural selection, 117.
Neotropical realm, 301.
Nerve cells, 240.
Nerve fibers, 240.

Nest-making habits of birds, 264;|
of fishes, 264; of insects, 262;
of invertebrates, 258; of spiders,
259; of vertebrates, 264.
Nest of Baltimore oriole (illus.),
267; of beavers (illus.), 269; of
Californian bush-tit (illus.), 270;
of Cleniza californica (illus.),
261; of pocket - gopher (illus.),
271; of rufus humming - bird
(illus.), 265, 266; of tailor-bird
(illus.), 268; of trap-door spider
(illus.), 261; of turret - spider
(illus.), 262.

Nokee (illus.), 132.

Nomeus gronovii (illus.), 175.
North Temperate realm, 299.
Nuclear membrane, 3.
Nucleus, 3.

234; of grasshopper (illus.), 234;
of mosquito (illus.), 235; of mol-
lusk (illus.), 233.

Organic matter, 112.
Organs, auditory, 232; of smell,
229; of sound-making, 235; of
taste, 228; of touch, 226; spe-
cialization of, 66; vestigial, 147.
Oriole, Baltimore, nest of (illus.),
267.
Ornithotomous sutorius, nest of,
268.

Osprey Falls (illus.), 285.
Otolith, 232.

Ox, alimentary canal of (illus.) 67.
Oxygen, necessary to animal life,
107.

Pagurus (illus.), 176.
Pandorina, 26.

Pandorina sp. (illus.), 26.
Pandorina morum (illus.), 27.
Papilio, chrysalid of (illus.), 205.
Papilla, tactile, of skin of man
(illus.), 227.
Papillæ, 67.
Paramecium, 9.

Paramecium aurelia (illus.), 10.
Paramecium caudatum (illus.), 11.
Paramecium plutorinum (illus.),

11.

Parasite of caterpillar (illus.), 190;
relation to host, 179.

Parasites, simple structure of, 181.
Parasitism, 179; kinds of, 180.

Obelia, alimentary sac of (illus.), Parthenogenesis, 60.

69.

Esophagus, 67.

Omasum, 67.

One-celled animals, 2.

Organ, 63; auditory, of cray-fish
(illus.), 233; of cricket (illus.),

Patagonian realm, 302.

Pediculus (illus.), 188.

Pelagic fauna, 304.

Pelican, brown (illus.), 125.
Peneus, adult and larva (illus.),
195.

Pharynx, 71.

Protective resemblance, 201.

Phlegethontius carolina, larva of Protoplasm, 3; chemical constitu

(illus.), 192.

Polygamy, 59.

Polymorphism, 42.

Polyps, 37.

tion of, 4; physical constitution of, 4.

Protozoa, 1; colonial, 24; marine, 15.

Psaltriparus minimus, nest of (illus.), 270. Pseudopod, 5.

Pterophryne histrio in Sargassum

(illus.), 208.

Pupa, 93.

Polistes, parasitized by Stylops Puss moth, larva of (illus.), 216.

Quiescence, degeneration through, 193.

Polystomella strigillata (illus.), 17. Rabbit, embryonic stages of (illus.),

Planaria, alimentary canal of Realm, Arctic, 297; Australian,

Prawn, adult and larva (illus.), 195. Rectum, 68.

Praying-horse (illus.), 127.

Pressure, a condition of animal

life, 109.

Primitive form, 20.

Primitive life, 21.

Prionus, larva of (illus.), 146.
Processes, life, 21.

Promethea moth (illus.), 231. Prophysema primordiale (illus.), 34.

Reflex action, 241.

Remora (illus.), 173.

Remora remora (illus.), 125. Reproduction, 9, 50; instincts of, 249.

Reproductive cells, 28, 55. Resemblance, aggressive, 202; general protective, 202; protective, 201; special protective, 207; variable protective, 204.

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Animals: A Text-book of Zoology