INDEX. 



Podocorxuc fulgurans, 139 

 gracilis, ij.1 

 humilis, 141, 142 

 minuta, 140 

 octostyla, 14.0 

 polystyla, 140 

 t, nuts, 141 

 Polycanna, 324, 335 

 americana, 326 

 crassa, 336 

 forskalea, 326 

 fungia, 325 

 germanica, 325 

 groenlandica, 335 

 italica, 325. 327 

 purpurostoma, 333 

 vitrina, 325 

 Polycolpa, 432 



forskalii, 433, 437 

 zonaria, 433 

 zonorchis, 433 

 Polyorchis, 9, 197, 218 

 campanulata, 218 

 minuta, 219 

 penicillata, 21S 

 pinnatus, 218 

 saltatrix, 220 

 Polyxenia, 337, 439 

 albescens, 482 

 cyanogramma, 443 

 c] anolina, 445 

 cyanostylis, 445 

 flavescens, 434 

 [eucostyla, 433 

 pleuronota, 338 

 Pottsia, 366 



ryderi, 366 

 Proboseidactyla, 8, 188 

 brevicirrata, 189 

 favicirrata, 1S9 



var. stolonifera, 191 

 gemmifera, 192 

 minima, 192 

 occidentalis, 193 

 ornata, iSy 



var. gemmtfera, xg2 

 var. stolonifera, T91 

 tropica, 191 

 varians, 194 

 Protiara, 7, 71. 105 

 bt roe, 106 

 borealis, 106 

 formosa, 10J 

 haeckelii, 106 

 Pseudoclytia, II, 232, 2j8 

 gardmeri, 2/9 

 pentata, 265, 2jS 

 Pteronema, 6, 92 

 ambiguum, 92 

 darwinii, 92 

 Ptychogastria, 13, 372 

 antarctii ", 3J5 



Ptychogastria asteroides, 374 



polaris, 3J2 

 Ptychogastridee, 13, 3/1 

 Ptychogena, 9, 197, 214 



( ?) antarctica, 21J 



californica, Appendix, 494 



crxthrogonon, 21 J 



lactea, 213 



longigona, 2IJ 



pinnulata, 215 



var. intermedia, 215 

 Pulsation of: Coryne pusilla, 51; Sarsia, 52; 



Polyorchis, 219; Obelia, 243; Craspedacusta, 



365; Gonionemus, 348; Geryonia, 426 

 Purena, 73 



brownei, Appendix, 489 



gemmifera, 62 



strangulata, 76, 79 



Rathkea, 8, 775 



blumenbachiana, 177 



blumenbachu, ijf 



elegans, 181 



Jasciculata, IJ9 



formosissima, IJJ 



octonemalis, 1S0 



octopunctata, 177, Appendix, 493 

 var. grata, 179 

 Reactions to: light by Eudendrium, 4; Sarsia, 52; 



mechanical stimuli by Rathkea, 180; chemi- 

 cals and electric current by Polyorchis, 219; 



chemicals by Obelia, 243; mechanical stimuli 



by Cosmetira, 261; photic and mechanical 



stimuli by Eutimium, 306; light and other 



stimuli by Gonionemus, 347; various stimuli 



by Craspedacusta, 365; chemicals by Gery- 

 onia, 424, 427 

 Regeneration: Eudendrium, 4, 27; Pennaria, 25; 



Obelia, 239; Tubularia, 239; Tima, 318; 



Gonionemus, 346; Liriope, 410; Geryonia, 



427; Sohnaris, 436 

 Rhacostoma, 324, 335 



atlanticum, 335 



dispar, 326 

 Rhegmatodes, 324 



floridanus, 330 



globosa, 332 



lacteus, 333 



tenuis, 332 

 Rhopalonema, 14, 376 



clavigerum, 382 

 il um, 380 



polydactylum, 379 



striatum, J^I 



typicum, 378 



velatum, 377, 37S 

 Rhopalonemince, 14, 376 



Sabellaria, 112 

 Saphenella, 234 



dissonema, 237 

 Saphenia, II, 108, 232, 293 



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