INDEX OF NAMES 



333 



Pectinaria, feeding, 192 



respiration, 210 

 Pectunculus, eye, 229 

 Peltogaster paguri, parasitic, 135, 143 

 Pelvetia, description, 303 

 Periophthalnms, respiration, 206-7 

 Phallusia mentula, habitat, 49 

 Philine, burrowing, 73 



reproduction, 271 

 Pholas dactylus, borer, 168 

 Phyllodoce, spawn, 246 



reproduction, 263, 265 

 Phyllosoma larvae, 267, 269 

 Pinnotheres pisum, parasitic, 144-5 

 Planaria dioica, power of adhesion, 



69 

 Pleurobranchus, parasitised, 149 

 Pleurociona, power of adhesion, 68 

 Pleuronectes, spp., parasitised, 146 



feeding, 197 



reproduction, 259 



economic aspect, 283 

 Plotosus angiiillaris, coloration, 99 

 Pliimularia, reproduction, 261 

 Podocerophis , commensal, 135 

 Poduridse, locomotion, 171 

 Polycera qiiadrilineata, spawn, 274 

 Polychaeta {see also Annelida), re- 

 sistance to desiccation, 62, 

 64 



habitat, 49, 50, 52, 67, 168 



bristles, 101-2 



respiration, 204, 211 



nervous system, 225 



tube-construction, 64, 241 



spawn, 246 



reproduction and growth, 

 257, 259, 263, sqq. 

 Polycirrus aurantiacus , coloration, 



98-9 

 Polydora, borers, 168 

 Polymnia, growth, 267 

 Pomatoceros , commensal, 135 



reproduction, 267 

 Porcellana, spp., adaptive form, 70 



death-feigning, 94 



protective resemblance, 96 



commensal, 135 



respiration, 213 



reproduction, 268 

 Porifera, spicules, loi 



contractility, 219 



reproduction, 258 

 Porphyra, spp., as food, 293 



description, 307 

 Portnnus, spp., burrowing, 73 



locomotion, 164-5 



Proctonotus, autotomy, 129 



Protozocea larva, 269 



Psammobia tellinella, adaptive form, 



73-4 

 Purpura, spp., habitat, 49 



adaptive form, 71 



salinity conditions, 81 



feeding, 195 



spawn, 272-3 



dye-yield, 287 



damage by, 300 

 Pycnogonida, locomotion, 155-6 



care of eggs, 252 

 Pylodieles miersii, tube, 104 



Rhodymenia pahnata, economic as- 

 pect, 293 

 description, 307 

 Rissoa, spp., habitat, 57 

 locomotion, 172-3 

 reproduction, 270 

 Rostanga coccinea, protective resem- 

 blance, 97 

 Rostellaria, spp., locomotion, 172 

 Runcina hancocki, protective resem- 

 blance, 96-7 

 locomotion, 173 



Sdbella, feeding, 192 



respiration, 210 



growth, 267 

 Sabellaria, grottos of, 67, 103 



feeding, 192 

 Sacconereis, reproduction, 263 

 Sacculina, spp., parasitic, 142-4 



reproduction, 268 

 Sagartia, spp., commensal, 135, 137 



reproduction, 262-3 

 Sarcophaginae, of shore, 310 

 Saxicava rugosa, habitat, 49 



borer, 67, 168 

 Saxidotftus arata, uses of, 301 

 Scalaria, defensive adaptation, 112 

 Scolophs anniger, reproduction, 266 

 Scomber, economic aspect, 283 

 Scrobiculuria, habitat, 57 



economic aspect, 287 

 Scyphidia littorince, commensal, 138 

 Sepiola atlantica, host, 149 

 Serpula, feeding, 192 



growth, 267 

 Serranus, commensal, 135 

 Sertularia, parasitised, 87 



reproduction, 261 

 Sigalion, nervous system, 225 

 Skeiiea planorbis, locomotion, 173 

 Solaster pnpposus, sight-sense, 223 



