560 



Index 



Pterichthys milleri 120 



Pterichthys oblongus 120 



Pterichthys productus 120 



Pterinopecten papyraceus 153 



Pterolepis nitidus 105 



Pterophyllum minus 313 



Pterosaurus 217 



Pterothrissus 356 



Pterygotus ....97, 100, no, 118, 131 



Pterygotus beds 118 



Pterygotus osiliensis 36 



Pterygotus problematicus 36 



Ptycholepis raiblensis 174 



Ptycholepis 183 



Ptyonius 147 



Pullastra arenicola 202 



Pumice as powder 401 



Purbeck beds.. 190, 191, 195, 202, 219 



Puzzolana 42 



Pycnodontidae 327, 331, 336, 



346, 520 

 Pycnodus, in Cretaceous beds... 214, 



334 



Pygididae 352 



Pygidium rivulatum in Titicaca, 426 



Pygopterus 170, 321 



Pygosteus 365 



Pyroxene 47 



Pythonomorpha 217 



Raibl, bituminous beds of 174 



Raja 215, 239 



Randall, on Downton beds 98 



Redwood, B., on Dakota sandstones, 



225 

 Redwood, B., on petroleum. 49, 54, 55 



References to literature 8 



Regan, C. T 458 



Reissner's fibre 77, 79 



Reproduction 9, 13, 18 



Respiration 9 



Retropinna, absorption of air blad- 

 der 358 



Retropinna richardsoni 459 



Reuss-Mayer on Cyprinoids 351 



Rhadinichthys alberti 149, 319 



Rhadinichthys brevis 145 



Rhadinichthys carinatus 145 



Rhadinichthys ferox 145 



Rhadinichthys ornatissimus. .139, 145 

 Rhadinichthys ....317, 318, 319, 493 



Rhaetic beds ' 172, 177 



Rhaetic bone beds 173 



Rhamphignathus . 367 



Rhineastes 350 



Rhinobatus 193, 208, 239 



Rhizodontidae 495 



Rhizodopsis 162, 306, 307, 495 



Rhizodus hibberti. . 139, 143, 145, 320 



Rhizodus ornatus 145, 320 



Richardson, L 289 



Richardson, L., on Rhaetic rocks. .177 

 Rhabdocoel turbellarians 60 79, 



80, 89 



Rhodeus 351 



Rhynchocoel in nemerteans. . . .74, 75 



Rhynchodoeum of Burger 75, 77 



Rhyncholepis parvulus 105 



Rhynchodus 129, 297 



Rift valleys, African . .404, 423, 424, 



437, 428, 429 



River wolves 421 



Roberts, T., on Jurassic fauna... 191 



Roberts-Randall 98, 99 



Robinson, B. L., on Galapagos flora, 



448 



Roche, M. E 286 



Rodriguez, Geoneraertes in 24 



Roemer-Frech 114 



Rogers, 1 125 



Rohon, J. v., on Jurassic strata.. 195 



Rossie Den, fish bed 116 



Rothliegende beds 164, 165 



Royal Society committee 43 



Ruedemann in 



Rupert-Jones 122, 123, 141 



Russell, I. C 38, 41, 42, 52 



Russia, Carboniferous rocks of... 137 



Sacculus of ear 88 



Sagemehl 353 



Sagenodus dialophus 168 



Sagenodus fossatus 168 



Sagenodus quinquecostatus . .145, 320 

 Salanx, air bladder absorbed. .. .358 

 Salina beds 109 



