INDEX. 



Obelia gracilis, 233 

 grtffim, 232 

 gymnophthalma, 244 

 helgolandica, 253 

 hyalina, 24.8 

 leucostyla, 244 

 linearis, 257 

 longissima, 255 

 lucifera, 249 



"'g ra > 2 5 6 



nigrocaulus, Appendix, 494. 



plana, 2tf.g 



plicata, 256 



polystyla, 255 



purpurea, 243, 256, Appendix, qg/j. 



pyrijornas, 24J 



rhunicola, 246 



serratula, 257 



sphaerulina, 246 



striata, 24.8 



surcularts, 252 

 Obelina;, 10, 231, 232 

 Oceania, 8, 120, 146, 265 



ambigua, 274 



armata, 14J 



blumenbachii, 177 



brunescens, 274 



carolinae, 275 



coccinia, 123 



conica, 1 18 



coronata, 123 



dinema, 109 



discoidea, 272 



flavidula, 147, 266 



folleata, 264 



gelatinosa, 272 



globosa, 122, 272 



languida, 269 



magnifica, 269 



mccradyi, 271 



octocostata, 208 



octona, 123 



pacifica, 273 



phospborica, 355 



pileata, 123 



polycirrha, 143 



saltatoria, 1 18 



sedicimcostata, 118 



singularis, 273 



tetranema, 106 



tubulosa, 52 



turrita, 123 



viridula, 311 

 Oceanidie, 7, 17, 102 

 Oceanopsis, 281 



bermudensis, 282 

 Octocanna, 12, 320 



octonema, 325 



polynema, 320 

 Octogonade, 12, 321 



mediterranea, 322 



[X] 



Octonema, 201 



eucope, 206 



gelatinosa, 214 

 Octorchandra, 295 



canadensis, 302 



germanica, 302 



orientalis, 496 



variabilis, 312 

 Octorchidium, 305 



tetranema, 302, 306 

 Octorchis, 295 



campanulatus, 302 



gegenbauri, 302 



orientalis, 299 

 Octorphalon, 201 



fertilis, 206 

 Olmdiada, 12, 340 

 01 i nd i as, 12, 332 



malayensis, 353, 336 



mulleri, 355 



phosphorica, 353, 335 



sambaquiensis, 353, 334 



singularis, 353, 337 



tenuis, 353, 334 

 Olindioides, 13, 338 



formosa, 338 

 Orchistoma, 9, 1 97, 211 



agaricijorme, 212 



pileus, 211 



steenstrupii, 21 1 



tentaculata, 212 



Pachycordyle, 5, 20, 21 



degeneratus, 21 



iveismanni, 21 

 Pacbysoma flavescens, 434 

 Pandaea, 116 

 Pandea, 7, 116 



conica, 118 



flavidula, 147 



maasi, Iig 



minima, 118 



saltatoria, 1 18 



violacea, Iig, Appendix, 490 

 Pantachogon, 14, 38S 



apsteini, 405 



hteckelii, 389 



rubrum, 38g 

 Parasitism: Hydrichthys, 19, 67; Mnestra, 96; 



Stylactis minoi, 149; Cunina, 379, 425, 427, 



429; Cunoctantha, 461, 464, 463; Gastrodes, 



461 

 Parvanemus, 21 

 Pectantliis, 372 



asteroides, 374 

 Pectis, 372 



antarctica, 375 

 Pectyllidae, 371 

 Pectyllis, 372 



arctica, 372 

 Pegantha, 15, 430, 43g 



