428 



Index 



Oceanites oceanicus, 74 

 Octocotylidae, 396 

 Odocoileus costaricensis, 327 

 Oedicnemus bistriatiis, 75 

 Ogilvie-Grant, W. R., 



quoted on : 

 pavo nigripennis, 10 

 Ophibolus, 221 



eggs of, 221 



food of, 221, 222 

 Ophibolus getulus, 



food of, 222 

 Ophidia, 198 



Opisthocomiformes, 45,* 46, 48, 54-56, 

 73 



Orinoco group, 112 

 Opisthocomus hoazln, 73 

 Opisthocomus mallaphaga, 54 

 Opisthoglypha, 200, 204 



fangs of, 206 



feeding method of, 200, 207, 208 



food of, 224 

 Opossum, 69, 327 

 Orca gladiator, 292 

 Orinoco, 



mammals in, 113 

 Oriole, Moriche, 109 

 Ornithology (see also "Birds"), 



bibliography referred to: 



Beebe : "Geographic variations in 

 birds," 39-41 



geographic variation in birds, 1-41 



Hoatzin, ecology of adult, 45-66 

 Ortalis ruficauda Jard, 73 

 Osborn, Henry F. (Prof.), 



quoted on : 



interaction of factors, 303, 304 

 Ossifraga, 



dichromatism of, 11 

 Ostinops decumanus, 104 

 Ostinops viridis, 104 

 Ovibos, 



coloration, protective, 34 

 Ovirl, Southern Pygmy, 81, 82 



call of, 81 

 Ox, musk, 



coloration, protective, 34 

 Oxybelis acuniiiiatus, 207 

 Oxybellis, 



food of, 225 



Pachysylvia aurantiifrons saturafa, 100 

 Pachysylvia, Venezuelan, 100 

 Palamedeiformes, 

 Orinoco group, 112 



Palm Swift, Fork-tailed, 86 

 Paracraga amianta (new species), 133,' 



137 

 Paracraga innoceiis Schaus, 137 

 Paramcecium colt, 186 

 Parasites, 393-410 



Colpocephalum, 54 



Goniocotes ciirtus Nitsch, 54 



Hoatzin, 53, 54, 117-121 



Lipeurus, 54 



maritime forms, 54 

 Parauque, White-necked, 86 

 Paridae, 



New York group, 112 

 Parrakeet, 326 



Parrakeet, Brown-throated, 82, 83 

 Parrot, 326 



blue-headed, 84 



Gray-headed Amazon, 83,* 83 



Racket-tailed, 144 



yellow-fronted Amazon, 83, 85* 

 eggs of, 83, 85* 

 nesting stub of, 83,* 85* 

 Partridges, Blood, 265 

 Passeriformes, 92, 93 



Acroniyod'i (higher), 



distribution Orinoco and New 

 York, 110-114 



Mesomyodi (lower), 



distribution Orinoco and New 

 York, 110-114 

 Pavo cristatus, 10 

 Pavo nigripennis, 



dichomatism of, 10 

 Pavo muticus, 10 

 Pavoninea, 264 



sequence of rectrice moult, 265 

 "Pavos del monte" (see Red-tailed 



Chachalaca) 

 Peacock, black-winged, 



dichromatism of, 10 

 Peafowl, 



Black-shouldered, 305 

 Pecarries, 327 

 Pelzeln, August von, 



quoted on : 



Hoatzin, distribution of, 50 

 Penard, P and A., 



quoted on : 

 Hoatzin, 48 



Hoatzin, distribution of, 49, 50 

 Perrin, J. B., 



quoted on : 



Hoatzin, distribution of, 50 

 Pelecaniformes, 78, 79 



Orinoco group, 112 

 Penelope argyrotis, 72 



