INDEX 



673 



Collar of New England Toruaria, formation 



of, 577 

 Collar-ciivities, formation of, in Actiuotrocha 



larva of Phoronis, 381 

 Collar-coelom, formation of, in New England 



Toruaria, 575 

 Collar-pores, formation of, in Actinotrocha 

 larva oi Phoronis, 381 ; in Nassau Tornaria, 

 680 

 Collar-skeleton, formation of, in New England 



Tornaria, 579 

 Collembola, 245 

 Columella, formation of, in CaryophylUa 



cyathus, 88 

 Columnal plates, formation of, in larva of 



Antedo)i rosacea, 548, 550 

 Comb of cilia in BerSe, 94 ; iu embryo of 



Patella, 296 

 Comb of scorpion, formation of, 240, 241 

 Comparative embryology, definition of, 29 

 Comparison of Bipinnaria and Ophiopluteus 

 larvae, 491, 492 ; of development of 

 Ophiothrix and Asterias, 503, 504 ; of 

 larvae of Ophiothrix fragilis and of 

 Echinus esculentus, 511 

 Compound eye in Insecta, 286 ; in Trilobita, 

 Crustacea, Arachnida, 286 ; development 

 of, biAstacus, 184 ; in Dysticus marginalis, 

 274-277 

 Conjugation, definition of, 2 

 Copepoda, 177, 185, 649, 651, 655, 662; 

 ancestral origin of, 213 ; development of 

 (formation of layers), 195 ; larval history 

 of, 196-200, 206-208 

 Copepodid \&rf&oi Aotheres a-mhloplitis, com- 

 pared to normal Copepod, 206, 208 

 Copulation path of nucleus in egg of Cynthia 



partita, 611 

 Copulatory spicules of A scaris inegalocephala, 



438 

 Coral, formation of, 87, 88 

 Cordylophora, development of gonophore of, 



62 

 Corneal fold, formation of in eye of Loligo, 



363, 367 

 Corneal lens of eye of Astacus, 189 

 Corona in larva of Bugula, 395 ; in larva of 

 Cyclostomata, 395 ; in larva of Lepralia, 

 395 ; in larva of Membranipora, 390 ; in 

 embryo of Pedicellina, 400 ; in larva of 

 Phylactolaemata, 395 

 Corpus epitheliale, formation of, in Cephalo- 



pod eye, 367 

 Corrosive sublimate, use of, 33 

 Gotylorhim, development of, 73 

 Couples of mesenteries of Urticina crassi- 



comis, 80 

 Coxal gland, formation of, of Agelena, 229- 

 230 ; in Limulus, 236 ; in Scorpion, 241 

 Orangon, larva of, 215 

 Orania, 414 

 Crepidula, 291, 323 ; segmentation of egg 



of, 321 

 Orepidula plana, eggs of, 10, 11 



VOL. I 



Oribrella, 484, 656 ; development of,, 481 



Cribrella oculata, 457, 459 



Crinoidea, 450, 523, 561, 562, 563, 564, 585, 



622 ; development of, 544-560 ; sperm of, 



used to cross-fertilize eggs of sea-urchins, 



17 • 

 Criodrilus, 147, 162 



Criodrilus lacuum, development of, 167, 169 

 Cross-furrow in the egg of Patella, 292 

 Crural glamls, formation of, in Peripatus 



capensis, 175 

 Crustacea, 22, 169, 244, 264, 280, 286; 



development of, 177-220 

 Crystalline cone, formation of, in compound 



eye of Astacus, 189 ; in compound eye of 



Dytiscus, 276 

 Crystalline sac, formation of, in Dreissensia, 



340 

 Crystalline style, formation of, in Dreissensia, 



340 

 Ctenophora, 53, 115, 116, 117, 126, 127, 



148, 164, 166, 167, 296, 309, 416, 529, 



561, 562, 659, 661 ; development of, 88-95 

 Ctenophore stage iu the embryo of Patella, 



296 

 Ctenoplana, 116 

 Ctenostomata, 380, 394 

 Gueuinaria, 547 



Cuciimaria planci, 529, 634, 535 ; develop- 

 ment of, 541 

 Cucumaria saxicola, 630, 643, 514 

 Gulicidae, 278 

 Curaacea, 177, 219 

 Cumulus primitivus in embryo of ScoZoyeredra, 



282 

 Cuticle of Peripatus capensis, 176 

 Cyatbozooid embryo of Pyrosoina, 636, 640 

 Oyclas, 349 ; formation of pericardium of, 



360 

 Cyclops, 200, 201, 206 ; larval history of, 



196-200 

 Gyelopsinidae, larvae of, 200 

 Cyclostomata (Polyzoa), 386 ; larva of, 395 ; 



(Fish), 669, 662 

 Cynthia partita, 631, 632, 646 ; develop- 

 ment of, 609-619 

 Cyphonautes, larva of Membranipora, 401, 



405, 406 ; hatching of, 389 ; rearing of, 



387 

 Cystoidea, 456 

 Cytotaxis, causing invagination in Echin- 



oidea, 527 ; in Polygordius, 139 



Decapoda (Crustacea), 177, 185, 203, 208, 



218, 219, 286 

 Dehydration, definition of, 32 

 Delamination in Geryonidae, 67 

 Delobranchiata, 221 



Demospongiae, 37 ; development of, 43-46 

 Dendrocoela, 102, 103 

 Dentalium, 373, 375 ; development of, 325- 



329 

 Dental pockets, formation of, in larva of 



Echinus esculentus, 515 



2x 



