INDEX 



741 



Enteron, of Obelia, 103 



See also Archenteron 

 Enteropneusta, 309 

 Eogyrinus, 561, 585 

 Environment, effect of, 674, 699 

 Enzymes, 9, 471, 502, 699 

 Eo hip pus, 711 

 Ephemeroptera, 252 

 Ephyra, 114 

 Epiblast, 187, 623, 647 

 Epiboly, 630 



Epicranial plates of cockroach, 228 

 Epicuticle, 227 

 Epidermis, 508, 527 



of crayfish, 198 



of earthworm, 160 



of frog, 349 



of leech, 181 



of liver fluke, 119 



of rabbit, 419 

 Epididymis, 456, 541 



of leech, 183 

 Epiglottis, 440, 517 

 Epimere, 627, 641, 657 

 Epimeron, 195 

 Epineurium, 534 

 Epipharynx, 228, 240 

 Epiphragm of snail, 266 

 Epiphysis, 423 

 Epipodite, 198 

 Episternum, 357 

 Epistylis, 59 

 Epitheliocyte, 504 

 Epithelium, 506 



germinal, 511 



sensory, 511 

 Epizoon, 147 

 Equus, 491 



Erection, 191, 335, 457, 471, 615 

 Erepsin, 444 

 Erinaceus eiiropcsus, 476 

 Eriihacus rubecula, 708 

 Erythrocyte, 524 

 Escargot, 264 

 Euglena, 23, jg, 79 



gracilis, 40 



viridis, 39, 40 

 Euonymus eiiropcea, 252 

 Eupagurus prideauxi, 147 

 Euryhaline animals, 194 

 Euspongia officinalis, 87 

 Eustachian canal, 364, 468 



tube, 391, 439, 517, 590 



valve, 661 

 Eutheria, 474 

 Evolution, 709 



evidence for, 710 



mode of, 719 



Exconjugants, 53 

 Excretion, 13, 14 

 Excretory organs, 194, 615 



of Ascaris, 136 



of chick, 657 



of cockroach, 233 



of crayfish, 210 



of dogfish, 333 



of earthworm, 164 



of frog, 377 



of lancelet, 305 



of leech, 182 



of liver fluke, 121 



of mussel, 278 



of pigeon, 413 



of rabbit, 455 



of snail, 268 



of tadpole, 642 



of tapeworm, 129 



See also Kidneys 

 Exocuticle, 226 

 Exopodite, 198 

 Exopterygota, 246, 2^9 

 Exoskeleton, 201 

 External auditory meatus, 428 

 Exteroceptive, 611 

 Exumbrella, 105 

 Eye muscles of dogfish, 341 



of frog, 389 

 Eyelashes of rabbit, 417 

 Eyelids of frog, 346 



of pigeon, 393 



of rabbit, 417 

 Eyes of Anura, 389 



of birds, 415 



of cockroach, 236 



of crayfish, 213 



of frog, 389, 639 



of Miracidium, 125 



of molluscs, 269 



of Nereis, 177 



of sheep, 465 

 Eyespot. See Stigma 



Facet for rib, 424 



glenoid, 321 



of ribs, 425 

 Facilitation, 95 

 Faeces, 445 



Falciform ligament, 442 

 Fallopian tubes, 457 

 Family, 25, 708 

 Fasciae, 514 

 Fasciculi, 522 



Fasciola hepatica, 118, 132, 154 

 Fat bodies, of frog, 368 

 Fatigue, 95 

 Fats, 8, 444 



