GENERAL INDEX. 



J91 



Odontochila, ii. 4S6 

 Odontolabris, ii. 493 

 Odontophorvs, ii. 339 

 Odantophrynus, ii. 420 

 (Edemia, ii. 364 

 (Edicnemis, ii. 355 

 Oedura, ii. 399 

 (E»w, ii. 332 

 Ogmodon, ii. 383 

 Ogyris, ii. 477 

 Oligdon, ii. 375 

 OLIGODONTIDiE, ii. 374 

 Oliyosarcus, ii. 445 

 Olisthopus, ii. 489 

 Olylogon, ii. 418 

 Otyra, ii. 442 

 • Om«set/s, ii. 489 

 Ommatophoca, ii. 204 

 Omolepida, ii. 397 

 Omostenus, ii. 492 

 Omphalotropis, ii. 521 

 Ontus, ii. 487 

 ONCIDIAD7E, ii. 517 

 Oticiilium, ii. 518 

 Onychodactylus, ii. 413 

 Onychogale, ii. 195 

 Onychogalea, ii. 251 

 Onychognathus, ii. 28S 

 Onchorhynchus, ii. 447 

 Oncostoma, ii. 101 

 Ophidia, classification of, i. 99 

 OPHIDIA, ii. 372 



remarks on the general distribution of, ii. 



386 

 fossil, ii. 387 

 OPHIDIIDjE, ii. 440 

 Ophidism, ii 440 

 OPHIOCEPHALIDvE, ii 435 

 Ophiodes, ii. 397 

 OPHIOMORIDJE, ii. 398 

 Ophiomorus, ii. 398 

 Ophiophagus, ii. 383 

 Ophiops, ii 391 

 Ophioscincus, ii. 397 

 Ophisaurvs, ii. 392 

 Ophites, ii. 380 

 Ophonus, ii. 489 

 Ophryodera, ii. 487 

 Ophysia, ii. 209 



OPISTHO-BRANCHIATA, ii. 529 

 OPISTHOCOMI, ii. 345 

 Opisthocomus, Brazilian caves, i. 164 



ii. 345 

 Opisthodelphys, ii. 418 

 Opisthostoma, ii. 520 

 Opisthoporus, ii. 520 

 Oporornis, ii. 279 



Opossum, extinct in European Miocene, l. 121 

 Opossums, ii. 248 

 Opsariichthys, ii. 452 

 Opsiphanes, ii. 472 

 Orang-utan, ii. 171 

 Orca, ii. 209 

 Orcaella, ii. 209 

 Orcheslicus, ii. 99 

 Orchilus, ii. 101 

 Orrns, ii. 223 

 Oreicota, ii. 260 

 Oreinus, ii. 452 

 Oreocephalus, ii. 401 

 Oreocincta, ii. 256 

 Oreodeira, ii. 401 



Oreodon, N. American Tertiary, i. 138 

 Oreodontidw, N. American Tertiary i. 13S 

 Oremca, ii. 271 

 Oreomarus, ii. 278 



Oreouectes, ii 453 

 Oreonympha, ii. 10S 

 Oreoperdix, ii. 338 



oreophasina:, ii. 343 



Oreophasis, ii. 343 

 Oreophilus, ii. 356 

 Oreopyra, ii. 107 

 Oreortyx, ii. 339 

 Oreoscoptes, ii. 256 

 Oreothraupis, ii. 99 

 Oreotrochilus, ii. 107 

 Orestias, ii. 4i0 

 Oriental region, denned, i. 75 

 subdivisions of, i 75 

 description of, i. 314 

 zoological featuits of, i. 315 

 mammalia of, i. 315 

 birds of, i. 310 

 reptiles of, i. 317 

 amphibia of, i. 317 

 fresh-water fishes of, i. 318 

 summary of vertebiata of, i. 318 

 insects of, i. 3 IS 

 sub-regions of, i. 321 

 concluding remarks on, i. 362 

 tables of distribution of animals of, i 364 

 Oriental relations of \V. African sub-region, i. 



265 

 Oriental and Palaearctic faunas once identical, 



i. 362 

 Oriental and Ethiopian faunas, cause of their 



resemblances, i. 363 

 Origma, ii. 260 

 Oriocalotes, ii. 402 

 Orioles, ii. 268 

 ORIOLID.E, ii. 208 

 Oriolus, ii. 268 

 Orites, ii. 266 

 Ornithion, ii. 101 



ORNITHORHYNCHID.E, ii. 253 

 Ornithorhjiiuhus, ii. 253 

 Oroccetes, ii. 256 



Orohippns, N. American Tertiary, i 136 

 Ortalidu, ii. 343 

 Orthagoriscus, ii. 457 

 Orthalicus, ii. 516 

 ORTHID^E, ii. 532 

 ORTHOCERATlDiE ii 506 

 Orthodon, ii 452 

 Orthogonius, ii. 491 

 Orthogonys, ii. 98 

 Orthonyx, ii. 260 

 Orthorhynchus, ii. 10S 

 Orthotomits, ii. 257 

 Ortygometm, ii. 352 

 Ortygornis, ii. 338 

 Ortyx, ii. 339 

 Ortyxelos, ii. 341 

 • ORYCTEROPODIDjE, ii. 246 

 Orycteropus, ii. 246 

 Orycterus, ii. 231 

 ORYGINjE, ii. 223 

 Oryx, ii. 223 

 Oryzoborus, ii. 285 

 Oryzorictes, ii. 188 

 Osmerus, ii. 447 

 Osphranter, ii. 251 

 Osteobrama, ii. 453 

 Osteochihi.'', ii. 451 

 1 1 . . . ii .|4M 



OSTEOGLOSSIDjE, ii. 454 



Osteoglossum, ii. 454 



Ostinops, ii. 2S2 



OSTKKIP.K, ii. 533 



Ostrich, Miocene of N. India, 1. 162 



Ostriches, ii. 368 



