INDEX 



699 



Endopodite, of Crustacea, 335; 336, 



337; of Trilobita, 324; of Xipho- 



sura, 528. See also Limbs 

 Endoprocta, 612 

 Endopterygota, 485 

 Endopterygote wing-formation, 459 

 Endosome, 22 

 Endosternite, 340 

 Endostyle, 672, 673, 675 

 Entamoeba, 70; 71; coli, 70; dysen- 



teriae, see E. histolytica; his- 

 tolytica, 70; 43, 71 

 Enterobius vermicularis , 254 

 Enteron, 146, 150, 151, 154, 157, 161. 



See also Archenteron, Digestive 



system 

 Enteropneusta, 662 and n.; 2, 665 

 Entocoeles, 187 

 Entodiniomorpha, no 

 Entodinium, in; caudatum, 108 

 Entomostraca, 331 

 Envelope cells, 100 

 Environment, 3; 129 

 Enzymes, Digestive, 130; 344, 434, 



558, 559, 566 

 Eolis, 569; 554, 567, 568 

 Epeira, 532; diademata, 531 

 Epheolota, j 16 ; gemmipara, 115 

 Ephemera, 481 ; vulgata, 4S1 

 Ephemeroptera, 481 ; 444 

 Ephestia, 491 

 Ephippium, 367 

 Ephyra larva, 179; 173 

 Epibolic gastrulation, 145, 282 

 Epibranchial space, of Decapoda, 



408 ; of Lamellibranchiata, 574 

 Epicardial cavity, 674; diverticula, 



674, 677 ; tube, 674, 677, 678 

 Epicardium, see Epicardial cavity, etc. 

 Epicuticle, 309 

 Epidermis, 136; in the several phyla, 



see names of phyla. See also 



Ectoderm 

 Epimerite, 95 

 Epineural canal, 623 ; of Echinoidea, 



646; of Ophiuroidea, 638 

 Epipharynx, 426. See also Mouth 



parts of Insecta 

 Epiphragma, 562 

 Epipodites, 314, 335, 336, 337. ^See 



also Gills of Crustacea, Metepipo- 



dites, Oostegites, Proepipodites 

 Epistome, of Decapoda, 410; of 



Polyzoa, 606 



Episiylis, in 



Epizoanthiis, 126 



Equitant whorls, 76 



Erichthus larva, 389 



Eriocraniay 488 



Eris talis, 511 



Eruciform larvae, 456; 457; of 

 Coleoptera, 492, 495 ; of Sym- 

 phyta, 500 



Estheria, 362; 346; obliqua, 363 



Euanostraca, 360 



Eucarida, 403 ; 389, 390 



Eucephalous larva, 508 ; 509 



Eucoila, 500 



Eucystis, 659 



Eudendrium, 158; 162, 163 



Eudorina, 58; 10 



Euglena, 52; 21, 22, 38, 43, 46; 

 gracilis, 42, 52 ; viridis, 40, 45, 5-, 53 



Euglenoid movement, see Met?/boly 



Euglenoidina, 52; 20, 49, 53 



Eugiypha, 74; 12; alveolata, 14; 73 



Eugregarinaria, 95 ; 88 



Eulalia, 268 ; 264, 266 



Eulamellibranchiata, 579; 574, 585 



Eumitoses, 25 



Eunice, 268; 264, 265, 272 



Eupagurus, 415; berr.hardus, 416 



Euphausiacea, 403; 388, 389 



Euplectella, 126 



Eupomatus, Trochosphere of, 284 



Eur>'pterida, 524 



Eurypterus, 526 



Euspongia, 127; 121, 123 



Euthyneury, 554, 570 



Eutyphoeus, 289 



Evadne, 368 



Evolution, 3, 4, 5, 144 



Exarate pupae, 456 



Excreta, see Excretion 



Excretion, 134; by Arthropoda, 315; 

 by Crustacea, 345-7; by Echino- 

 dermata, 628; by Metazoa, 134, 

 140; by MoDusca, 556; by Proto- 

 zoa, 20; by Tunicata, 675. Set 

 also Excretory organs 



Excretory organs, 140; 3, 134; 

 of Arachnida, 315, 520; of Ar- 

 thropoda, 315; of Balanoglossus, 

 668; of Crustacea, 315, 345; see 

 also Antennal glands, Maxillary 

 glands; of Insecta, 315, 436; of 

 Metazoa, 140; of Myriapoda, 315; 

 of Nematoda, 245, 248 ; of Nemer- 



