552 



COMPARATIVE ANATOMY 



Distmna isostomum, 134 \ intestinal and 



nervous system, 143 

 , , lanceolatmn, 134 i sexual organs, 



168 

 Dochniius duodenalis, 180 

 DoripjK, S99 



Dorojjygus porcicaiida, trunk feet, 316 

 Dorsohranchiata, 1S:2 

 Doyeria simjiUx, head, 544 

 Drassus, 610 

 DrepanophwuSj 178 



,, Lankasterii, nervous sys- 



tem, 216 

 Dromia, 309 

 Dwarf males (Cirripedia), 305 ; (Crustacea 



generally), 377 

 Dysderidm, 610 

 Bysnwrphosa carnea, 68 

 Dytiscidce, 44^ 

 Dytismis, section through ocellus, 470 



Earthworm, see Lumbricus 

 Ecardines, 185 



Ecdysis, 458 

 EchiTiococcus, 172 



,, veterinorum, 135 



EcMnodera, 186 



Echinodenii, 119 



Echinorhynchus, ISO ; genital organs, 257 ; 

 organisation, 258 

 ,, g^sas, ISO 



Echiuridce, 1S2 



Echiurus, enteric canal, vascular system, 

 and nephridia, 207; nervous system, 

 223 



Ectoparasitiai, 134 



Ectoplasm, 13 



Eetoproeta, 184 



Ectosarc, 13 



EdnopMhalmata, Z93 



Edwardsia, 71 



Eggs, animal, 25 ; parthogenetic, 32 ; 

 segmentation, 121-131 ; summer (Crust- 

 acea), 376,'382 ; types of, 27-32 ; winter 

 (Crustacea), 376, 382 



Elateridce, 442 



Elytra (Vermes), 189 ; (Antennata), 441 



Embidce, 439 



Emhole, 123 



Empidce, 443 



Empis stercorea, nervous system, 466 



Enchytrmdm, 181 



Encystation, 16 



Endite, 315 



Endomychidce, 441 



Endoparasiiica, 134 



Endoplasm, 13 



Endopodite, 307 



Endosarc, 13 



EnopUdcp, 178 



Entomostraea, 288 



Entoniscus, S96 



Entoprocta, 184 



Epieira, 510 



Ephemeridce, 439 ; sexual organs, 485 ; 



larva, 483 

 Epihippiyera, 463 

 Ephippium, 380 

 Ephyra, 7'2 

 Epibole, 124 

 Epimerit, 9, 16 

 Epipodite, 315 

 Epistylis, 11 

 Equitidce, 44^ 

 Erichtlms larva, 393, 394 

 Eriphia, 300 

 Errantia, 183 

 Erscea, 70, 113 

 Eschara, 184 

 Estlieria, 388 

 EucJucris, 72 

 Eucone eyes, 470 

 Eucope aimpanulata, 68, 74, 102 

 Eueopiepoda, 290 



Eueopia australis, posterior maxillee, 313 

 EudendHuvi ramosum, 68 

 Eudorina, 8 

 Eudoxia, 70, 113 

 Eiidrilus, 181 

 Euglena, S 

 Eulimnadia Agassizii, 2d antennte, 310 



, , texana, 2d antenna, 310 



Eunice limosa, 188 

 Eunicidce, 182 

 EvpaguTUS, 298 

 Euphausia 2^ellucida, 2d anteunee, 310 ; 



anterior maxilte, 312 ; nervous system, 



346 ; pleopoda, 325 

 Eiip}hausid(e, 398 ; larval history, 889 ; 



larvK, 390 

 Euphrosyne, 182 

 Euplectella, 61 

 Euplotes, 9 

 Eupomatus uncinatus, egg segmentation, 



123 ; larva, 269 

 Exi.pirepiadce, 44^ 

 Em-ylepta, 133 

 Eurypteridce, 416 

 Euscorpius, 609 



,, italicus, eye, 521 



Eiispongia officinalis, 63 

 Eustrongylas gigas, ISO 

 Evadne, 390 

 Evaniadce, 44'i 

 Exogone, 183 

 Exopodite, 307 

 Exotheca, 99 

 Exumhrella, 73 

 Exuvia, 458 

 Eye-spots (Cnidaria), 75, 97 ;' (Protozoa), 



18 ; x-shaped (Crustacea), 352 ; (Pla- 



todes), 169 



Fabricia, 234 

 Facet-eyes, 470 

 Faloes, 515 



