INDEX. 



DicoJonium jeffersoni, 46 

 Dicranocanna, 188 

 furcillata, 189 

 Digestion, Intracellular, in Craspedacusta, 3(15 

 Digitale medusa, 402 



Dimorphism in hydroids: Pennaria and Cory- 

 morpha, 23; Syncoryne and Stauridia, 48, 65, 

 84, 99; Corynitis and Sarsia, 72; Bougain- 

 villia and Nemopsis, 172; Agastra, 234; 

 Obelia, 256 

 Dinema, 44, 108 



ocellatum, 46 

 Dinematella, 108 

 cavosa, 109 

 Diotlieteumena, 430 

 Dipetasus, 360 



digonemus, 361 

 Dipleuron, 281 



parvum, 283 

 Dipleurosoma, 10, 197, 22+ 

 brooksii, 214, 22 j 

 collapsa, 226 

 ochracea, 226 

 pacifica, 225 

 typicum, 22 J. 

 Diplura, 37 

 Diplurella clavata, 76 

 Dipurena, 73 

 catenata, 77 

 cervicata, 76 

 conica, 76 

 dolichogaster, 77 

 fertilis, 63, 77 

 fragilis, 77 

 halterata, 75 

 ophiogaster, 79 

 picta, 77 

 strangulata, 76 

 Dissonema, 7, 115 

 saphenella, 113 

 turrida, 116, Appendix, 400 

 Distribution of: Trachymedusae, 340; Limnoc- 



nida, males and females, 371 

 Dyscannota, 188 



dysdipleura, 189 

 Dysmorphosa, 135 

 carnea, 136 

 eonchicola, 1 36 

 dubia, 141 

 fulgurans, 139 

 gemmifera, 192 

 gracilis, 141 

 minima, 181 

 minuta, 140 

 tenuis, 141, 142 



Ectopleura, 5, 6S 



dumortieri, 6g, Appendix, 488 

 minerva, 70 



ochracea, 69, Appendix, 488 

 pacifica, 70 



Eirene, II, 232, 295, 3I1 

 danduensis, 313 

 digitale, 402 

 gibbosa, 307 

 kambara, 309 

 medusifera, 313 

 pellucida, Appendix, 496 

 quadrigatum, 313 

 variabilis, ^12 

 viridula, 311 

 Eircnina, II, 232, ; 

 Ehutheria, 6, 93 

 claparedn, Q$ 

 Ji. hotoma, 9.1 

 vallentini, 96 

 Environment, ifFtct of: light on regeneration of 

 Eudendrium, 27; flowing water upon Bou- 

 gainvillia, 158; Agastra, 234; Obelia, 239 

 I penthesis, 261 



cymbaloides, 266 

 folleata, 262, 264 

 mccradyi, 271 

 rangiroae, 265 

 Eucheilota, 11, 232, . 



bakeri, 202, Appendix, 495 

 bermudensts, 282 

 duodecimals, 



. parvum, 283, 2S4 

 mat ui 



pat ado* f. a, 283 

 pilosella, 261 

 tricularis, . 

 Ew odonium, 5, 68 

 brownei, 68 



>e, io, 231, 234, 238, 261 

 affinis, 262 

 alternata, 249 

 annul ata, 2;~ 

 articulata, 246 

 i ampanulata, 

 diaphana, 241 

 dissonema, 2yj 

 'klandica, 237 

 fusiformis, 250, 2=52 

 gemmigera, 285 



bosa, 233 

 hyalina, 237 

 obliqua, 250 

 parvigastra, 2 

 picta, 236 

 polygastrica, 280 

 polygena, 250, 251 

 polystyla, 255 

 pyriformis, 247 

 pella, 10, 231, 232 

 bilabiata, 233 

 campanularia, 233 

 crenata, 234 

 Eueopida, 10, 196, 231 

 I Eucopium, 234 



parvigastrum, 23S 



[v] 



