528 
Ophiostoma, | 
Ophisaurus, 
Ophisurus, 
Ophiura, 
Ophonus, 
Ophryessa, 
Opilo, 
Opisthocomus, 
Opistognathus, 
Opistolophus, 
Oplocephalus, 
Oplurus, 
Opniotheres, 
Opossum, 
Orbicula, 
Orbiculata, 
Orbiculina, 
Orbitelz, 
Orbitis, 
Orbulites, 
Orbulites, 
Orchesia, 
Orchestes, 
Orchestia, 
Order, 
Oreosoma, 
Organization, 
Orgyia, 
‘Oribata, 
Orioles, 
Oriole Tanagers, 
Oriolus, 
Orneodes, 
Ornithorhynchus, 
Ornithomyia, 
Orphnus, 
Ortalida, 
Ortalis, 
Orsodacna, 
Orthagoriscus, 
Orthocerina, 
Othocerus, 
Orthochetes, 
Orthonyx, 
Orthoptera, 
Orthorhinus, 
Orthorhynchus, 
Ortochile, 
Orcynus, 
Orycteropus, 
Vol. 
ee 
? 
inf 
%« 
d ° 
ab 
GENERAL INDEX. 
Oryctes, 
Oryssus, 
Orythyia, 
Oscinis, 
Osmerus, 
Osmia, 
Osmylus, 
Osorius, 
Osphromenus, 
Ospreys, 
Osteoglossum, 
Ostracea, 
Ostracion, 
Ostrea, ‘ 
Ostrea proper, 
Ostriches, 
Otaries, 
Othiorhynchus, 
Otiocerus, 
Otilophis, 
Otion, 
Otis, 
Otites, 
Otolithus, 
Otomys, 
Otters, 
Otus, 
QOuistitis, 
Ourapteryx, 
Ourax, 
Oviparous Vertebrata, 
Ovis, 
Ovula, 
Ovulites, 
Owls, 
Ox, 
Oxea, 
Oxybelus, 
Oxycera, 
Oxycheila, 
Oxyglossus, 
Oxygnathus, 
Oxyopes, 
Oxyporus, 
Oxypterum, 
Oxyrhynchus, 
Oxystomus, 
Oxytelus, 
Oxura, 
Oxyuri, 
Vol. 1 
IV 
ra 
IV 
i 
IV 
