INDEX 



744 



Gastropoda, 284 

 Gastrula, 622 

 of bird, 648 

 of crayfish, 671 

 of frog, 629 

 of lancelet, 621 

 of liver fluke, 125 

 of mammals, 663 

 of starfish, 670 

 Gastrulation, 621 

 modes of, 649 

 of bird, 649 

 of invertebrates, 670 

 of frog, 629 

 of lancelet, 621 

 Genae, 228 

 Gene complex, 701 

 Genera, 25, 707 

 Generative (or reproductive) organs, 



of Ascaris, 138 



of Chaetopoda, 185 



of cockroach, 236 



of crayfish, 216 



of dogfish, 335 



of earthworm, 172 



of frog, 379, 643 



of Hydra, 99 



of lancelet, 309 



of leech, 183 



of liver fluke, 122 



of lizard, 619 



of medusae, 106 



of Nereis, 176 



of pigeon, 413 



of rabbit, 455 



of snail, 269 



of starfish, 293 



of swan mussel, 278 



of tapeworm, 129 

 Generic name, 25 

 Genes, 698 



Genital organs. See Generative 

 organs 

 pouch of cockroach, 230 

 rachis, 293 

 stolon, 293 

 Genotype, 685 

 Gentles, 259 

 Geological record, 711 

 Gephyrea, 186 

 Germ cells, 5. See also Gametes 



layers, 187, 638, 674 

 Germinal disc, 644 

 vesicle, 620 

 wall, 647 

 Giant fibres, 168 

 Gill bars, 303, 590 

 Gill clefts, 589 



Gill clefts, of dogfish, 312, 322 

 of lancelet, 300, 303, 625 

 of tadpoles, 637, 640 

 See also Visceral clefts 

 Gill cover of crayfish, 196 



of fishes, 546 

 Gill plate, 635 



slits. See Gill clefts 

 Gills, 12, 195, 589 



dermal, of starfish, 287 

 external, 590 

 of crayfish, 209 

 of dogfish, 322, 590 

 of mussel, 274 

 of tadpole, 637 

 -rays, 319 

 Girdle, pectoral, or shoulder, 559 

 of cod, 560 

 of dogfish, 320 

 of duckmole, 497 

 of Eogyrinus, 561 

 of frog', 356 

 of lizard, 561 

 of man, 562 

 of pigeon, 404 

 of rabbit, 434 

 pelvic or hip, 559 

 of dogfish, 321 

 of frog, 357 

 of lizard, 562 

 of pigeon, 405 

 of rabbit, 435 

 Girdle, limb, 559 

 Gizzard of cockroach, 232 

 of earthworm, 162 

 of pigeon, 407, 594 

 Gland(s), 13. 5^9 



adrenal, 18, 344, 367, 445 

 albumen, 269 

 buccal, 267 

 carotid, 373, 601 

 clitellar, 183 

 colleterial, 238 

 conglobate, 237 

 Cowper's, 456, 457 

 ductless, 18, 510 

 of dogfish, 344 

 of frog, 367 

 of rabbit, 445 

 grease, 509, 528 

 green, 210, 672 

 Harderian, 465 

 infraorbital, 444 

 interrenal, 344 

 lacrimal, 465 

 lime, 162 

 lymph, 526 

 milk, 418, 509 



