INDEX. 



745 



Odontostilbe microcephala, 429 



paraguayensis, 344, 429 



pulcher, 327, 429 



trementinse, 344, 429 

 Odontostomus, 514 



distribution of, *6i9 

 Ogle, F., 509 

 Ogmorhinus, 86 



carcinophagus, 92 



leptonyx, 87 



Ogmorhynus leptonyx, 87 

 Ohio, 631 



Oken, L., 5, 31, 32, 185 

 Old World, 44, 614 

 Oleacinidae, 613, 622, 625 



distribution of, *625 

 Olfers, J. F., 487 

 Oligocene epoch, 624, 626 

 Oligochseta, 629 

 Oligoplites, 480 



palometa, 480 

 Oligoryzomys, 46 

 Oligosargus, 447 



argenteus, 447 

 Olivos, 587 



Ommatophoca rossii, 85 

 Onca, 167 

 Oncifelis, 179, 180 

 Oncoides, 178 



geoffroyi, 180 



pardalis, 182 

 Ontario molossina, 107 

 Onychomus, 44 

 Onychomys, 44, 8l 

 Ophiocephalops, 448 

 Ophisternon, 450 

 Opisthobranch stock, 611 

 Orange Bay, 48, 68, 149, 518, 519, 520 



Harbor, 518, 519 

 Orbigny, A. d', 146, 148, 182, 514, 520, 525, 



544. 548, 552, 553, 557, 558, 566, 575, 587, 



596, 605, 610, 

 Orcella, 419 

 Orchestia, 307 

 Orchestiidae, 650, 653 

 Orctocephalus galapagoensis, 131 



Oregon, 152 

 Oreogobius, 481 



roscnbergii, 308, 481 

 Orestias, 305, 307, 308, 370, 372, 373, 461 



agassizii, 461 



albus, 461 



bairdii, 461 



cuvieri, 461 



elegans, 461 



frontosus, 461 



humboldti, 461 



incae, 461 



jussiei, 461 



jussieui, 461 



luteus, 461 



luteus, 461 



miilleri, 461 



mulleri, 461 



neveni, 461 



olivaceus, 461 



ortoni, 461 



owenii, 461 



owenii, 461 



pentlandi, 461 



pentlandi, 461 



tirapatae, 461 



tschudii, 461 

 Orestiasiformes, 461 

 Orestiasini, 461 



Orthalicinae, distribution of, *62I 

 Orthurethra, 612 

 Ortmann, A. E., 293, 6ll, 620, 621, 624, 629, 



632, 633, 635, 663, 664, 665 

 Orycterogale, 143 

 Oryzomys, 4, 44, 46, 69, 8 1 



cherriei, 46 



coppingeri, 48 



magellanicus, 47 



monochromos, 46 



navus, 46 



phaeopus, 46 

 Osborn, H. F., 294 

 Osgood, W. H., 191 

 Ostariophysi, 238, 239, 379 

 Ostariophysiae, 309 

 Osteogaster, 403 



