588 



INDEX 



Purple sea, Gulf of California, 170 



Purpura, 152 



Puschnig, 504 36 



Putter, 255 



Putorius putorius, 410, 474 



Pycnogonum, 38 



Pygmophorus, 531 



Pygoscelis adeliae, 385, 38(5 



P. antarciica, 386 



P. papua, 386 



Pyrameis, 143 



P. cardui, 66, 127, 128, 383 



Pyrgoma, 220 



PyrgvMfera, 348 



Pyrochilus lampas, 400 



Pyrocystis, 255 



Pyrosoma, 255 



P. elongatum, 250 



Pyrosomae, 225 



Pyrrhyla pyrrhula murina, 89 



Python molurus, 378 



P. reticulalus, 56 



Quadrula, 374 



Racovitza, 537 23 



Radiation of heat, 391 



Radiolarian, ooze, 250 



Rahm, 358 97 



Rain-forest, 42Sff 



Rains of fishes, 62 



Ramann, 376 26 



Rana, 128, 440 



R. arvalis, 509 



R. catesbeiana, 471 



R. esculenta, 129, 375, 471, 500 



R. esculeida lessonae, 129 



R. esculenta nigromaculata, 129 



R. esculenta ridibunda, 129, 371 



R. goliath, 400 



P. jerboa, 315 



P. larutensis, 315 



P. latiremis, 509 



P. sylvatica, 437 



P. temporaria, 380, 500, 509 



Ranatra, 85, 299, 300 



Rattus norvegicus, 547 



P. rattus, 56 



Ratzel, 145 1 



Reaumur, 319 13 



Red clay, life on abyssal, 251 

 Red Sea, 80, 155 



gaps in coral reefs, 210 



salinity, 164 

 Red tide, Japanese coasts, 170 

 Reef corals, 207, 215 



rate of growth, 210 

 Regalecus, 224, 259, 263 

 Reibisch, 22i 5 , 175 21 , 287 60 

 Reibisch-Simroth ' ' pendulation theory, ' ' 



116 

 Reichenow, 10 2 

 Reindeer, swimming, 65 

 Relict groups, 103 

 Relict theory of bipolarity, 279 

 Relicts, 112 

 Remora, 60 

 Rensch, 10 2 

 Reptiles, hibernation, 409 



in the tropics, 403 



of the alpine zone, 501 

 Restriction of range, 125 

 Retardation of sinking, 226 

 Rhamdia, 84 

 Rhea americana, 388 

 Rheocolous animals, 294 

 Rhinoceros, 98 

 Rhinoderma darwini, 438 

 Rliinophrynus dorsal is, 403 

 Rhio-Linga Archipelago, 90 

 Rhizocrinus lofotensis, 251 

 Rhizostoma, 261 

 Rhode us, 306 

 R. amarus, 305 

 Rhombus tnaximus, 195 

 Rhumbler, 162 31 , 247 4 

 Rhyacophila, 94 

 Rhymatophila alpina, 125 

 Rhynchotalona, 329 

 Rhytina, 95 

 Ribbe, 97 75 

 Riccordia ricordi, 406 

 Richter, 134 6 

 Richters, 358 92 ' " 

 Ridgeway, 96 61 ' 67 , 419 28 , 442 30 

 Ridley, 442 37 

 Right whale, weight, 50 

 Riparia riparia, 474 

 Rissa tridactyla, 483 

 Rissoa, 181 





