639 



Echinoid stage in tlie development of a 



Holothuroid, 615 

 Ecliiuoidea, 431, odS f. ; compared with 

 Holotlmroidea, 5li0 ; with Blastoidea, 

 580 ; mesenchyme of larva, 604 ; ile- 

 velopment of, 607, 60S, 609, 613, 614 ; 

 pliylogeuy of, 622 

 Ech in olu mjtas, 55 Jf 

 Ech in omd ra , 5Jf2 

 Ech in om u ricea, 356 

 Ec/iinoiiciis, 553, 553 

 Echiiionidae, 553 



Echino])lutcus, 607, 608 ; nK'tamor])hosis 

 of. 613, 614 



Echinosphaerites, 598 ; E. aiirantium, 598 



Ecliinothuriidae, 530, 531, 532, 535, 558, 

 560 



Echinus, 533, 539 ; K. escuh'ntus, 504 f. 

 505, 507, 511-515 ; locality, 504 ; 

 sjiines, 506 ; pedicellariae, 506 ; corona, 

 511 ; periproct, 513 ; peristome, 513 ; 

 alimentary canal, 516 ; water- vascular 

 system, 516 f. ; nervous system, 518 

 f. : sphaeridia, 524 ; perihaemal spaces, 

 524 f. ; genital system, 528 ; blood- 

 system, 529 ; larva, 607 ; E. acufus, 

 540 ; pedicellariae, 509 ; E. ah'.randri, 

 pedicellaria, 510 ; E. elegans, 539, 540 ; 

 pedicellariae, 510 ; E.microtuberculatus, 

 540 ; E. miliaris, 540, 542, 549 ; E. 

 norvegicus, 539, 540 



Ecouomic uses of Foraniinifera, 69 f. 



Ectocoele, 367 



Ectoderm, 246 



Ectoplasm (=ectosarc), 6, 46 f., 50; of 

 Amoeba, 5 ; of Rliizopoda, 51 f. ; of 

 Heliozoa, 71 f. ; of Radiolaria, 79 f. (see 

 also Extracapsular protoplasm) ; re- 

 generation of, in Radiolaria, 35 ; cf 

 CoUozorim inerme, 76 : of Gregarines, 96 

 f. ; of Ciliata, 141 f ; of St^/hmi/rhia, 

 140 ; of Suctoria, 159 ; of Trachelius 

 ovum, 153 ; of Vorlicella, 156 



Eclojjlenra, 268 



Ectosarc — see Ectoplasm 



Ectosome, 170 



Ectyoniuae, 217 



Edrioasteroidea, 5S0, 59G 



Edwardsia, 328, 366,368, 376; E. aHmani, 

 377 ; E. heaii/empsii, 376, 377 ; A'. 

 carnea, 377 ; E. goodsiri, 377; E. tec/a, 

 377 ; E. timida, 376, 377 



Edwardsia stage of Zoantharia, 367 



Edwardsiidae, 377 



Edwardsiidea, 367, 371. 375, 395 



Egg. fertilised, 31 ; of Metazoa, 32 f. ; of 

 bird, 32 ; v.arious meanings of, 34 ; of 

 arfected Silkworm moths transmitters of 

 pebrine, 107 



Ehrenberg, on Protozo.a, 45 f. ; on skele- 

 tons of Radiolaria. 87 f. ; on Ciliata, 

 146 ; on Suctoria, 162 



Elmer and Fickcrt, on classification of 

 Forannnifera, 58 n. 



Elasipoda, 569, 571, 577, 578 



Electric, currents, stimulus of, 19, 22 ; 



shock, action on Amoeba, etc., 7 

 FJnitheria, the medusa of Chn-dteUa, 265 

 lOleutheroblastea, 253 



Eleutheroplea, 279 



Eleutherozoa, 430, 560, 577, 579, 583 ; 

 development of, 602 f ; larva of, 605 ; 

 lihylogcny of, 621, 622 



Elevator muscles of compasses of Echinus 

 CSC I, Ic, I /lis, 527 



Eiiijisactinia, 283 



Ellis, 167 



Embryonic type of development, 601 



Eucystment, 37, 39 ; of animal cells, 37 ; 

 of vegetal cells, 37, 39 ; growth during, 

 37 ; of zygote, general in Protista, 34 ; 

 of Rhizopoda, 57 ; teiii]irii:ii y, n\ IMiizo- 



poda, 57 (see also llv) y>t): of 



Heliozoa, 72 f. ; of Act iimpl,ri/y, 72 ; of 

 Aclinosphaerium, 73 f. ; of I'roteomyx;!, 

 88, 89 ; of Myxomycete zoospores, 

 90 f. ; of Sporozoa, 96 f. ; of zygote of 

 Sporozoa, 95 f. ; of Gregarines, 95 f., 

 98 ; of Lankesteria, 95 ; of Monoci/sds, 

 96 ; of Coccidiidae, 97 f. ; of Coccidimn, 

 100, 101 ; of archespore or pans])oro- 

 blast of Myxosporidiaceae, 107 ; of Fla- 

 gellates, 115, 117 f. ; of zygote of JSndo 

 salterns, 117 ; of OiJaiina, 123 f. ; of 

 oosperm of Volvocaceae, 127 f., 129 f. ; 

 of Dinoflagellates, 131 ; of Ciliatn, 147 ; 

 of Co/pvda cucui/ns, 147, 153 



Eudocyclica, 529, 530 f., 556, 559 



Endoderm, 246 



Endogamy, in Amoeba coli, 57 ; in Actinn- 

 sphocriiim, 73 f., 75 (diagram) ; in 

 Sfcplia/i ospho.era, 128 



Endogenous budding in Suctoria, 160 f. , 

 162 



Kiidoparasitic Suctoria, 86, 160 f. 



Endoplasiu (=endosarc, q.r.). 6 — see also 

 Intracapsular protoplasm (Radiolaria) 



Eiidoral, cilia, 139; undulating membrane, 

 139 



Eiiilosarc ( = endoplasm), 6; of Gregarines, 

 95 f. ; branching, of Xnctilnca, 110, 

 133 ; of Loxndes and Trachelius, 144 

 153 ; of Ciliata, 143 f. ; of Sli/loni/chicc, 

 140 ; of Suctoria, 161 



Kndosphaera, 159, 161 



Energy, changes of, in living organism, 8, 

 13 ; sources of, 13 f. 



Entocnemaria, 394 



Entocoele, 367 



Entosolenia , 66 



Entz, Geza, on Choanoflagellates, 121 n. ; 

 on structure of Vorlicella, 157 n. 



Eocene Forannnifera, 70 



Eolis(=Acolis), 248 



