3nhtx 



Abastor, 223 



eggs of, 223 



food of, 223 

 A ccipitriformes, 



distribution, 

 Orinoco and New York, 111 



order, 79-81 

 Acomus, 264, 304 



distribution geographically, 307 

 Acrochordinae, 



food of, 214 

 Acronyctinae, 128 

 Acropteryx opulenta, (new species), 



132, 133, 133* 

 "Adders," North American, 204 

 Aegialitis colloris, 74 

 Aegialitis seniipalmatus, 74 

 Aehtulla, 205 

 Africa, North, 



Snipe, dichromatism of, 9 

 Agamia agami, 78 

 Aglypha, 



teeth of, 214 

 Agoutis, 327 

 Aix sponsa, 249, 250 

 Ajaja ajaja (Linn), 329 

 Atandidae , 



New York group, 112 

 "Albatross," U. S. S., 161 

 Albatrosses (see also "Procellarii- 

 formes") 11 



parasites from, 118 

 Alcedinidae, 



distribution, 



Orinoco and New York, 111 

 Allen, J. A. (Dr.), 



quoted on : 



Coloring of birds and mammals, 



■4, 8. 9 

 Hoatzin, distribution of, 50 

 Amazon Parrot, (see "Parrot") 

 Amasona inornata, 83 

 Aniazono ochrocephala, 83 



New York group, 112 

 Amphistbcenidae , 

 constricting power of, 200, 201 

 Anahleps anableps, 70 



Anaconda, 



feeding habits, 202 



food of, 210 



size of, 211 

 Ancistrodon, 209 



food of, 232 



piscivoru's, 



skull of (fig. 94), 230,* 231 

 Andre's Antbird, 93 

 Anhinga anhinga, 79 

 Ani, Greater, 88, 89 

 Ani, Groove-billed, 333, 334 

 "Anna" (see "Hoatzin") 

 Anopheles, 70 

 Anseriformes, 



distribution, 

 Orinoco and New York, 111 



order, 78 

 Ant bird, 



Andre's, 93 



checked, 93 



Trinidad Black-headed, 92 

 Ant-tanager, 



Cardinal, 103 

 Ant-thrushes, 327 

 Anus, prolapse of, ' 



primates affected with, 184, 185 

 Apes, 



dysentery among, 186 

 Ara macao, 82 

 Ara macavuana, 82 

 Aracari, Black necked, 89 

 Aramides axillaris, 73 

 Aramus scolopaceus, 75 

 Arboricola, 263 

 Archibuteo, 



dichromatism of, 10 



lag opus sancti-johannis, 10 

 Arctocephalus tozvnsendi, 161 

 Arctiidae, 126, 127 

 Ardea occidentalis, 13 

 Ardea pealei, 13 

 Ardea rufescens, 13 

 Ardeiformes, 



distribution, 



Orinoco and New York, 111 



order, 76-78 



sequence of rectrice moult, 265 



