E

Earth centipedes, 2:357, 2:358-359 Earthworms, 2:25, 2:65-74, 2:69 behavior, 2:35, 2:36, 2:43, 2:66 conservation status, 2:67 distribution, 2:66 evolution, 2:65 feeding ecology, 2:36, 2:66 habitats, 2:66 humans and, 2:68

physical characteristics, 2:18, 2:65-66, 2:67 reproduction, 2:16, 2:22, 2:67 species of, 2:70-73 taxonomy, 2:65 Eastern American oysters, 2:455, 2:457, 2:459

Eastern horseshoe crabs. See Japanese horseshoe crabs Eastern oysters. See Eastern American oysters

Eastern pearl shells. See European pearly mussels Ecdysis, 2:14 Ecdysozoa, 2:5, 2:13 Echiniscoidea, 2:115 Echiniscoides hoepneri, 2:117 Echiniscoides sigismundi, 2:116 Echiniscoides sigismundi polynesiensis, 2:116 Echiniscoides sigismundi sigismundi. See Tidal water bears Echiniscus testudo. See Turtle water bears Echinoderms evolution, 2:11 symbiosis, 2:32, 2:33 taxonomy, 2:3 Echinosquilla guerini, 2:169 Echiurans, 2:9, 2:13, 2:21, 2:24, 2:103-107,

2:105 Echiuridae, 2:103 Echiuridea, 2:103 Eciton burchelli. See Army ants Ecology, 2:25-30, 2:43

See also Conservation status Ecosystems, 2:26

See also Conservation status Ectocommensals, 2:31-32

See also Behavior Ectoderm, 2:15, 2:20, 2:35 Ectoprocta. See Bryozoans Ectosymbionts, 2:31 Ediacaran fauna, 2:9-10

See also Evolution Edwards, H. Milne, 2:195 Eggs. See Oocytes

Egyptian giant solpugids, 2:338, 2:348

Eisenia andrei, 2:68

Eisenia fetida, 2:68

Electra pilosa. See Sea mats

Electron microscopy, 2:4

Eledone spp. See Lesser octopods

Ellobiidae, 2:411, 2:413

Elysia viridis, 2:406, 2:407, 2:409

Embryogenesis, 2:18-19

See also Reproduction Embryology, 2:7-8, 2:15-16, 2:35

See also Reproduction Emerita analoga. See Pacific sand crabs Emperor nautilus. See Pearly nautilus Emperor scorpions, 2:337, 2:348, 2:350-351 Endangered Species Act (U. S.) spruce-fir moss spiders, 2:343 vernal pool tadpole shrimps, 2:146 Endoconidae, 2:446 Endoderm, 2:12, 2:15, 2:20, 2:35 See also Physical characteristics Endodontoid snails, Pacific, 2:414 Endogeic worms, 2:66 Endomyzostomatidae, 2:59 Endosymbiosis, 2:8, 2:11, 2:31 Enigmonia spp., 2:452 Entale tusks. See Tusk shells Enterocoely, 2:3, 2:21 Entoconchidae, 2:445 Entocytherids, 2:312 Eohypsibius nadjae, 2:116 Epeira spp. See Web-spinning spiders Epicaridea, 2:249, 2:250 Epigeic worms, 2:66

Epimenia australis, 2:380, 2:381, 2:382-383 Epineuralia, 2:4

Epiperipatus biolleyi, 2:112, 2:113 Epitrachys rugosus, 2:75 Equal holoblastic cleavage, 2:20

See also Reproduction Ergasilus sieboldi, 2:302, 2:307 Eriocheir sinensis. See Chinese mitten crabs Erpobdellidae, 2:76 Erpobdelliformes, 2:75 Erythrosquilloidea, 2:168, 2:171 Escarpia spp., 2:91 Eubacteria. See Bacteria Eucopia spp., 2:225 Eucopiidae. See Eucopia spp. Eudrilidae, 2:65, 2:66 Eudrilus eugeniae. See African worms Euglandina rosea. See Rosy wolfsnails Eukaryotes, 2:8-9

See also specific eukaryotes Eukoenenia draco, 2:338, 2:346-347 Eulimnadia texana. See Texan clam shrimps Eumalacostraca, 2:181, 2:185 Eunice aphroditois, 2:46 Eunice viridis. See Palolo worms Eunicids, 2:47 Euphausia spp., 2:185 Euphausia pacifica. See North Pacific krill Euphausia superba. See Antarctic krill Euphausiacea. See Krill Euphausiidae, 2:185 European green crabs, 2:33, 2:201 European medicinal leeches, 2:75, 2:77-78,

2:79, 2:80-81 European night crawlers, 2:66, 2:68 European pearly mussels, 2:455, 2:462-463 Eurydice pulchra, 2:251 Eurypauropodidae, 2:375, 2:376 Eurythoe complanata. See Fire worms Eutardigrada, 2:115, 2:116, 2:117, 2:118 Evolution, 2:7-14, 2:9, 2:10 amphionids, 2:195 amphipods, 2:261 anaspidaceans, 2:181

aplacophorans, 2:14, 2:379

Rostroconchia, 2:469

mystacocarids, 2:295, 2:297

Arachnida, 2:333

Thermosphaeroma thermophilum, 2:252

myzostomids, 2:60, 2:62

articulate lampshells, 2:521

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