Index 



557 



Odontaspis 239 



Odontopteris 167 



Oeningen fauna, flora. . .245, 250, 253 



Oenoscopus 345 



Oesel beds 23, 31, 36 



Oesophagus of nemerteans 68 



Ohio, devonian of 129, 266 



Ohio shale, section of 269 



Oil field of Boulder, Colo 223 



Oil field of Kansas 223 



Oil shales of Lothians 141 



Oligocene fishes 252 



Oligocene formation. . .237, 239, 242 



Oligocene oil strata 236 



Old Red formation 29, 31, 48, 



54, no, 114, 302, 303, 304 



Olfactory organ 64, 65 



Oligopleuridae 207, 342, 343, 



345. 483 



Oligopleurus 220, 344, 345 



Onchus 97, 112, 134 



Oniscolepis 36 



Onychodus 129, 304, 305, 306 



Oolites 190 



Ophiocephalidae. . .368, 370, 405, 408 



Ophiocephalus 368 



Opisthomyzon (or Echeneis) . . . .396 



Opossum 441, 445 



Opossum, water 446 



Oppel on Jurassic strata 195 



Opsigonus 345 



Orbiculoidea rugata 102 



Orcadie, Lake 115, 304 



Orcadian series 116, 119 



Ordovician times 19, 23, 25 



Orestias 363, 425 



Oriskanian beds 127 



Orthacanthus 201, 272, 277 



Orodus 283 



Orthopleurodus 283 



Ortmann, A., on Antarctica 446 



Ortmann, A., on Tanganyika. .. .466 



Orton, E 30, 127 



Osphromenidae 369, 405, 408 



Ostariophysi 349 



Osteostraci 257, 496 



Osteoglossidae 354, 355, 357, 



38s, 427 



Osteoglossum 234, 354, 428, 523 



Osteolepis microlepidotus 119, 



120, 303 

 Osteolepis macrolepidotus. . 120, 303 



Ostracanthus dilatatus 156 



Ostracoda of Tanganyika 468 



Ostracoderm fishes 105, 497 



Ostrea virgula 339, 340 



Oudemans, on excretory tubes.... 90 

 Oxyrhina 239 



Pachycormidae 219, 242, 336, 



337, 338, 346, 488, 520 



Pachylebias 362, 425 



Pachylepis 36 



Pachytheca sphaerica ... .98, 99, 103, 



1x8, 507 



Palaeaspis 106, 261 



Palaedaphus 124 



Palaeoniscidae 31, 492 



Palaeoniscus 284 



Palaeoniscus antipodeus 187 



Palaeoniscus bainii 184 



Palaeoniscus crassus 187 



Palaeoniscus macropomus 171 



Palaeoniscus sculptus 184 



Palaeoniscus superstes 176 



Palaeopteris 122, 131 



Palaeophonus 104, no 



Palaeosaurus 178 



Palaeospondylides 257, 260 



Palaeospondylus gunni i2i, 303, 



497, 514 



Palaeospinax 291 



Palaeozoic period 29 



Palau Isles, Geonemertes in 24 



Paludina 173, 192 



Pander 123, 257 



Pappichthys 234, 238, 339 



Parabatrachus 308 



Parascopelus 239 



Parexus recurvus 118 



Parietal eye 65 



Parka decipiens no, 118 



Parker on Protopterus 62, 69 



Passamaquoddy bay 106 



Patten, W 27, 53, 124 



Pauciprotodonta 446 



