590 



INDEX. 



Platyelminthes, 1 8, 20, 24, 221, 424 

 Platygaster, 396, 416, 417, 418, 419 

 Pleurobrachia, 176, 177, 238 

 Pneumodermon, 242, 576 

 Podostomata, 292 

 Poduridae, 401, 405 

 Polychaeta, 42, 319, 325, 338 

 Polydesmus complanatus, 387, 388 

 Polygordius, 319, 325, 326, 327, 328, 



332, 357, 386 

 Polynce, 42, 331 

 Polyophthalmus, 328 

 Polyplacophora, 225, 254, 270, 271, 288 

 Polystomeae, 189, 205, 209 

 Polystomum, 209 



,, integerrimum, 30, 31, 210 



Polytrochse, 330, 333 

 Polyxenia leucostyla, 158 

 Polyxenus lagurus, 387 

 Polyzoa, 98, 303, 305, 306, 308, 315, 316 

 Porcellana, 483 

 Porifera, 102, 138, 148 

 Porthesia, 115 

 Prorhyncus, 32, 34 

 Prosobranchiata, 225, 237, 281 

 Prostomum, 32, 34, 38, 196 

 Protozoa, 8, 9, 10, n, 86, 135, 149 

 Protozosea, 471 

 Protula Dysteri, 342 

 Pseudoneuroptera, 426 

 Pseudoscorpionidse, 434 

 Psolinus, 556, 574 

 Psychidse, 16 

 Pteraster miliaris, 561 

 Pteropoda, 98, 225, 226, 229, 230, 232, 



240, 258, 270, 272, 279, 283 

 Pterotrachaea, 71, 229, 240 

 Pulex, 396 



Pulmonata, 39, 225, 232, 238, 281, 282 

 Purpura lapillus, 78 

 Pycnogonida, 538 

 Pyrosoma, 13, 53, 109 



Rana temporaria, 210 



Raspailia, 147 



Redia, 206, 207, 208, 209 



Reniera, 147 



Reptilia, 56, 59, 60, 61, 62, 64, 109 



Rhabditis dolichura, 82 



Rhabdoccela, 32, 33, 189, 196 



Rhabdopleura, 294, 306 



Rhizocephala, 459, 493, 499, 500 



Rhizocrinus, 5 



Rhizostoma, 167 



Rhombogens, 131, 134 



Rhynchonellidae, 311 



Rhyncobdellidae, 346 



Rotifera, 5, 12, 18, 75, 76, 77, 79, 83, 



102, 221, 308, 325 



Saccocirrus, 328, 329, 332, 340 

 Sacculina, 500 



Sagartia, 169, 171 



Sagitta, 23, 74, 94, 130, 366, 367, 368 



Salmonidae, 64 



Salpa, 102 



Sarcia, 164 



Scaphopoda, 225, 257, 270, 271 



Schistocephalus, 211 



Schizopoda, 459, 465, 466 



Scolopendra, 392 



Scorpio, 120, 431, 446, 454, 455, 457 



Scrobicularia, 38, 39 



Scyllarus, 477 



Scyphistoma, 179, 185, 186 



Sedentaria, 319, 336 



Sepia, 20, 40, 4t, 242, 243, 244, 245, 



247, 249, 253 

 Sergestidae, 473, 507 

 Serpula, 319, 325, 331 

 Sertularia, 152, 183, 184 

 Silicispongise, 147 

 Simulia, 401, 415 

 Siphonophora, 13, 27, 152, 159, 163, 



165, 179, 180, 182, 185 

 Sipunculida, 24 

 Sipunculus, 44 

 Sirex, 396 

 Sitaris, 421 



Spathegaster baccarum, 428 

 Spio, 42, 332, 333 

 Spiroptera obtusa, 376 

 Spirorbis Pagenstecheri, 319 

 ,, spirillum, 319, 336 

 Spirula, 252 

 Spirulirostra, 252 

 Spongelia, 147 

 Spongida, 138, 144, 148, 149 

 Spongilla, 147, 150 

 Sporocysts, 206, 207, 208, 209 

 Squilla, 66, 504, 507 

 Stephanomia pictum, 162, 165 

 Stomatopoda, 459, 465, 484 

 Stomodaeum, 413 

 Strongylidse, 371, 375 

 Strongylocentrus, 567 

 Strongysoloma Guerinii, 387, 388, 390 

 Stylasteridae, 152, 181 

 Styliolidae, 24! 

 Stylochopsis ponticus, 193 

 Sycandra, 93, 138, 144, 145, 147, tso 



,, raphanus, 138, 174 

 Syllis, 343 



vivipara, 319 

 Sympodium coralloides, 1 68 



Taeniatae, 178 



Tardigrada, 541 



Tegenaria, 436 



Teleostei, 18, 25, 56, 59, 64, 107, 109 



Telotrochre, 330 



Tendra, 300 



Tenthreds, 396 



Terebella conchilega, 332, 333, 337 



