550 



INDEX 



Dictynidae, 352, 353, 398 



Digestive system, = alimentary canal, q.o. 



Dikeloceplwtlus, 2Jfi 



Dimorphism, high and low ; iu Decapoda, 



103 ; in Tanaids, 123 

 Dindymene, 251 

 Dinopinae, 410 

 Dinopis, 410 

 Dinorhax, 429 

 Diogenes, 181 

 />ii ni file, 245 

 DipJuiscon, 485 ; I), alpinum, 487 ; D. 



angustatum, 487 ; D. bullatum, 487 ; 



D. chilenense, 486, 487 ; D. oculatum, 



487 ; D. scotiaim, 487 ; D. spitzbergense, 



487 



Diplocentrinae, 306, 307 

 Di.plocentrus, 307 

 Diflocepkalus bicephalus, 405 

 Diplostichous eyes, 301 

 Diplura, 390 

 Diplurinae, 390 

 Dipoena, 403 

 Discoarachne, 512, 535 

 Distribution, of Crustacea, 197 f. ; (strati- 

 graphical) of Trilobites, 222 

 Dofieiu, on eyes of deep-sea Crustacea, 



148, 150 



Dohrn, 504, 513, 519 

 Doleschall, 365 

 Dolichopterus, 283, 291 

 Doliomelus, 415 

 Dolomedes jimbriatus, 416 

 Dolops, 78 

 Domed webs, 350 

 Donachochara, 406 

 Donnadieu, 457 

 Dorippe, 185, 188 

 Dorippidae, 188 

 Doropygus, 6G ; D. pulc;>\ 66 

 Dorsal organ, of Phyllopoda, 22 ; of 



Cladocera, 39 

 Doublure, 232 

 Doyere, on Tardigrada, 481 ; on their 



systematic position, 483 

 Doyeria, 485 ; D. simplex, 480, 487 

 Drassidae, 324, 396 

 Drassiuae, 39G 



Drassus, 397 ; D. lapidosus, 396, 397 

 Drepanothrix, 53 

 Dromia, 184 D. vulgaris, 184 

 Dromiacea, 183 ; metamorphosis, 182 ; 



relation to Macrura, 184 ; habitat, 198 

 Dromidia, distribution, 200 

 Dromiidae, 184 

 Drymusa, 393 

 Dufour, 385 

 Dujardin, 464 n. ; on systematic position 



of Tardigrada, 483 

 Duplorbis, 95 ; D. calathurae, 99 

 liynomene, 184 

 Dynomenidae, 184 



Ltysdera, 394 ; D. cambridgii, 394 ; D. 



crocota, 395 



Dysderidae, 317, 319, 336, 394 

 Dysderina, 394 

 Dysderinae, 394 



Ebalia, 188 



Echiniscoides, 485 ; E. sigismundi, 477, 

 486 



Echiniscus, 480, 485 ; E. arctomys, 486 ; 

 E. gladiator, 486 ; E. granulatus, 486 ; 

 E. islandicus, 486 ; E. muscicola, 486 ; 

 E. mutabUis, 486 ; E. oihonnae, 486 ; 

 E. quadrispinosus, 486 ; E. reticulatus, 

 486 ; E. spinulosus, 479 ; E. spitzbery- 

 ensis, 486 ; -E. testudo, 478 ; E. wendti, 

 486 



Echiuoderms, Dendrogaster parasitic on, 

 94 



Echinognathus, 283 



Ecribellatae, 385 



Ectatosticta davidi, 393 



Ectinosoma, 62 



Edriophthalmata, 112, 121 



Eggs, of Phyllopoda, 32 ; of Cladocera, 

 44 ; of Copepoda, 59, 62, 66, 67, 71, 

 74 ; of Branchiura, 77 ; of Syncarida, 

 114 ; of Peracarida, 123 ; of Hoplo- 

 carida, 141 ; of Eucarida, 144 ; of 

 Trilobites, 238 ; of Limulus, 275 ; of 

 Pedipalpi, 309 ; of Spiders, 358 ; of 

 Solifugae, 424 ; of Pseudoscorpions, 

 434 ; of Phalangidea, 442 ; of Acarina, 

 456 ; of Tardigrada, 478 ; of Penta- 

 stoniida, 493 ; of Pycnogons, 520 



Ehrenberg, on systematic position of 

 Tardigrada, 483 



Eleleis crinita, 396 



Ettipsocephalus, 224, 235, 24'7 ; E. hoffi, 

 248 



Embolobranchiata, 258, 259, 297 f. 



Emmerich, on facial suture of Trinucleus. 

 226 



Encephaloides, 193 ; E. annstronyi, 192, 

 193 ; habitat, 205 



Encrinuridae, 251 



Encrinurus, 227, 235, 251 



Endeis didactyla, 534 ; E. gracilis, 539 ; 

 E. spinosus, 541 



Endite, 9, 10 



Endopodite, 9, 10 ; of Trilobites, 237 



Endosternite, 257, 305, 330 



Endostoma, of Eurypterus, 287 



Engaeus, 157 ; E.fossor, distribution, 213 



Enoplectenus, 418 



Enterocola, 67 ; E. fulyens, 67 



Entomostraca, denned, 6 ; diagnosis, 18 ; 

 of littoral zone, 197; fresh -water, of 

 southern hemisphere, 216 



Entoniscidae, 130, 134 



Knyo, 400 



Enyoidae, 399 



