Nymphious, 300. 



Ochthodiceta, 290. 

 Ochthoeca, 290. 

 Ockthorms, 290. 

 OcyaUis, 282. 

 Ocyceros, 296. 

 Ocydronvus, 302. 



misiralis, 63. 



Ocyphaps, 298. 

 Odowtophorina, 303. 

 Odontophortes, 303. 



237. 



Odontorhynchm, 288. 



(Edicnemus, 304. 



erepitams, 59, 60. 



(Edistoma, 286. 



ffiWi, 298. 



CEaophagua, 208. 



(Estrelata, 304. 



Oidemia, 305. 



Oil-bird, 122, 123, 265. 



Oil-gland, 151. 



Old-World Ant- 

 thrushes, 263. 



Olfactory foramen, 182. 



OUgomyodm, 262, 263, 

 290. 



Oligomyoidal struc- 

 ture, 214. 



0%Mro, 289. 



Ombrette, 272. 



Orwostoma, 291. 



Onycognathus, 282. 



Opisthocoeloua yer- 

 tebrse, 172. 



Opi^hocomida, 274, 

 303. 



Opisi&ooJK'Ms, 303. 



cristatiis, 92, 94. 



OpistJ«yprora, 295. 



Opisthotic bones, 227. 



Oporomis, 285. 



Optic nerves and fora- 

 men, 182. 



Orchesticas, 284. 



Orchihs, 291. 



Orders of birds enume- 

 rated, 258. 



Ormola, 290. 



Oreocha/ris, 286. 



ALPHATJETIOAIi INDEX. 



Oreocorys, 285. 

 Oreoica, 287. 

 Oreomanes, 284. 

 Oreomyea, 284. 

 Oreortympha, 294. 

 Oreophasinee, 304. 

 Oreopkasis, 304. 

 Oreopsittaous, 299. 

 Oreopyra, 294. 

 Oreoscoptes, 288. 

 Oreothrawpis, 284. 

 Oreotrochihs, 294. 

 Organ of hearing, 219. 



of smell, 219. 



of song, 211. 



of tasts, 219. 



Organs, non-skeletal, 



202. 

 Origma, 287. 

 Orioles, 104, 261. 

 OriolidcB, 261, 282. 

 Om^MS, 282. 



galhula, 103, 104. 



Ornithion, 291. 

 Ormtholites, 236. 

 Ornithological regions 



of the Earth, 239. 

 OHalida, 303. 

 Orthogonys, 284. 

 Ortholophus, 296. 

 Orthmyx, 288. 

 Orthctomus, 287. 

 Ortolan, 105. 

 Ortygocichla, 289. 

 Ortygospisa, 283. 

 Oriiya?, 303. 

 Ortyxelos, 302. 

 Oryzohorus, 284. 

 Oscimes, 281. 

 Os hyoides, 187. 

 Ospreys, 126, 271. 

 Ossification, process of, 



226. 

 Osfe'Mops, 282. 

 Ostriches, 65, 281. 

 Oftii®, 273, 302. 

 Oi!ss, 302. 



ifartfa, 47, 49. 



Otooompsa, 289. 

 Otocorys, 285. 

 Otogyps, 300. 

 Ovary, 210. 



321 



Oven-bird, 118, 263. 

 Oviduct, 210. 

 Owl-parrot, 71, 72, 



269. 

 Owls, 129, 271. 

 Oxpeoters, 112, 113. 

 Oxylabes, 289. 

 Oxypogon, 294. 

 Oxyrmmphida, 263, 



291. 

 Oxyrhamphms, 291. 

 Oxyiirus, 292. 

 Oyster-catchers, 55, 56, 



275. 



Fachycare, 287. 



Fachycephala, 287. 



Fachycephalines, 287. 



Fackycoccyx, 298. 



Fachywus, 299. 



Fachyrhamphus, 291. 



Fagopkila, 304. 



Palsearctio region. 

 Birds of, 242. 



and sub- 

 regions, 239, 242. 



Faltegithalus, 237. 



FalcBorms, 299. 



torquatus, 269. 



Paltsornithincs, 299. 



FalcBotringa, 237. 



Falamedea, 306. 



corrmta, 45, 47. 



Palamedeis, 278, 306. 



FaiamMeidte, 279, 306. 



Palate, skeleton of, 

 185. 



Pancreas, 209. 



Fandion, 300. 



haliaetus, 126. 



Fcmdionidis, 271, 300. 



Farwplites, 295. 



Fanterpe, 294. 



Fanurus, 286. 



Fanychlora, 294. 



Fanyptila, 295. 



Papuan subregion. 

 Birds of, 248. 



Paradigalla, 282. 



Faradisea, 282. 



apoda, 90. 



Faradiseidis, 261, 281. 

 T 



