Index 



705 



Fibrinogen, 179 



Fibula, 110 



Fiddler crab (see Uca), 489, 507 



Fiery serpent (see Dracunculus) , 437- 



438 

 Filarial worm, 436-437 

 Filariasis, 518 

 Filial generation, 299 

 Filum terminale, 202 

 Finches, Darwin's, 339, 340 

 Finger, 190, 318 



Finger shell (see Pterocera), 476 

 Fingerprints, 83 

 Fins, of fish, 78, 575, 576, 583 



of squid, 478 

 Fish, 567-591 

 biology, 663 



circulatory system, 161, 164, 165 

 classification, 45, 46, 348, 559, 561 

 commensals, 393 

 endocrines, 231, 240, 247 

 enemies, 390, 409, 463 

 integument, 77, 78, 83-84 

 intermediate host, 411 

 louse (see Argulus), 506 

 muscular system, 119, 126 

 nervous system, 196, 197, 199, 212, 



219 

 parasites of, 409, 463, 475-476 

 respiratory system, 148, 149, 154, 161 

 sex determination, 310 

 skeleton, 100, 108 

 Fission, binary, 252, 351, 369 



multiple, 252, 351 

 Fissure, dorsal, 196, 203 

 longitudinal, 200 

 ventral, 196, 203 

 Fissurella, 476 

 Flagellata, 352, 353-359, 644 

 Flagellum, 350, 352, 353, 376 

 Flame cell, 403, 406 

 Flamingo, 625 



Flatworm (see Platyhelminthes) 

 Flavor, 214, 215 

 Flea, 531. 536, 540 

 Flesh, 116 

 Flexor, 119 

 Flipper, 112 

 Flounder, 588, 589, 590 

 Fluid, body, 186 

 extracellular, 235 

 intracellular, 235 

 tissue. 182, 183 

 Fluke, 45, 347, 401, 409-415 

 Fly, 540 



Flying dragon, 78, 608 

 Flying fish, 589. 590 

 Flying lemur, 78. 630. 632, 634 

 Flying squirrel, 78, 637 

 Fly way, 621-622 



Follicle, graafian, 242, 260 



ovarian, 260 



stimulating hormone (FSH), 244, 

 245 



thyroid, 228, 229, 230 

 Fontanel, 104, 111 

 Fontaria, 489 

 Food, 128,^144-146, 588 



chain, 352 



network, 668-669, 670 



vacuole, 349, 360, 369 

 Foot, of clam, 473 



of molluscs, 467 



of vertebrate, 110 

 Foramen, 100 



infraorbital, 103 



intervertebral, 105, 204 



magnum, 56, 69, 103 



of Monroe, 198 



obturator, 110 



ovale, 163, 164 



transverse, 105 

 Foraminifera, 352, 362 

 Forbes, 660 

 Forearm, 118, 119 

 Foregut, 497. 519, 523 

 Foreleg, of frog, 51, 52-53 



of horse, 334 



of mammal, 109, 110, 112 

 Foreskin, 258 

 Forficula, 538 

 Fossa, 58, 100 



glenoid, 58, 109 



mandibular, 103 



Fossil, 325 



Fovea centralis, 217, 218 

 Fowl, inheritance in, 301, 305, 310-311 

 Fox, 630, 638 

 Fraternal twins, 295 

 Freckles, 82 

 Free-living animal, 350 

 Frenulum, 130 



Fresh-water communities, 660-663 

 Friction ridges. 82, 83 

 Frog, 46. 47-74, 165, 166, 197, 231, 

 567, 598-601 (see also Anura 

 and Amphibia) 



egg, 283 



embryology, 281 

 Frontal bone, 102, 103, 215, 216 



lobe of cerebrum, 197, 200 



plane, 51 

 Frontoparietal bone, 56 

 Frons, 521, 522 

 Fruit fly (see Drosophila) 

 Fulcrum, 117, 118 

 Fulmar, 625 

 Fundulus, 590 

 Fundus, 133, 143 



