376 
Notornis, notice of the discovery of a living specimen, 
69. 
Notornis mantellii, generic characters, 74. 
, remarks on, 73. 
Nototherium, 14. 
Numenius, 290. 
Numenius arquata, 286. 
Numida, 317. 
Nyctale, 201. 
——, Brehm, diagnosis, 206. 
Nyctale acadica, Bonap., diagnosis and description, 
206. 
albifrons, Cass., 208. 
—— funerea, Bonap., diagnosis and description, 207. 
kirtlandii, Cass., 208. 
richardsonii, Bonap., diagnosis, 208. 
tengmalmi, 207. 
Nyctalops stygius, Wagl., 233. 
Nyctea, 259. 
——., subgenus, 213. 
, Subgenus, diagnosis, 214. 
Nyctea cinerea, Steph., 214. 
erminea, Steph., 214. 
nivea, Bonap., 214. 
Nycterodius, 323, 338. 
Nycticoraz, 269. 
Nycticorax griseus, 338. 
Nyctipethes perlatus, Swains., 205. 
Cidicnemus crepitans, 285. 
Ophidia, 319, 320. 
Ophidian, 298, 304. 
Ophidians, 303, 306, 321. 
Orang, 77, 78. 
Orang-utan, 84, 165. 
Orangs, osteological contributions to the natural 
history of the, 75, 165. 
Oreophasis, 317. 
Ornithorhynchus, 71. 
Ostrich, 8, 60, 141, 289, 299. 
, African, 320. 
group, 298. 
—-, Northern, 355. 
, young, 314. 
Ostriches, 291, 353. 
Otis tarda, 285. 
Otter, 71. 
Otus, 206, 259 ; subgenus, 230; Cuv., diagnosis and 
description, 230; Kaup, subgenus, diagnosis, 
232. 
africanus, Cuv., 240. 
americanus, Bonap., diagnosis and description, 
233. 
INDEX OF SPECIES. 
Otus ascalaphus, Cuv., 239. 
bengalensis, Frankl., 239. 
brachyotus, Boié, diagnosis, description, and 
observation, 236. 
capensis, A. Smith, description, 237. 
grammicus, Kaup, diagnosis and description, 
231. 
macrurus, Kaup, diagnosis and description, 232. 
maculosus, Less., 240. 
madagascariensis, A. Smith, diagnosis and de- 
scription, 235, 
mantis, Miull., 230. 
mexicanus, Cuy., diagnosis and description, 235. 
semitorques, Schleg., 230. 
siguapa, D’Orb., 233. 
stygius, Puch., diagnosis and description, 233. 
ulula, Cuv., 236. 
vulgaris, 207, 214, 219. 
vulgaris, Flem., diagnosis and description, 232. 
wilsonii, Less., 233. 
zonurus, G. R. Gray, diagnosis and description, 
234, 
Ovipara, 305, 319. 
Ovis, 291. 
Owls, 289, 314. 
—,, day, 201, 258. 
, night or true, 222, 258. 
Ox, 45. 
Pachyderms, 32, 44. 
Pagellus centrodontus, 288, 330. 
Palapteryx, on, containing the restoration of the 
feet, 1. 
, crania of species of, 59. 
, sternum of, 16. 
Palapteryx dromioides, 8. 
, restoration of the foot of, 19. 
geranoides’, 60. 
robustus, 2, 17. 
, restoration of the foot of, 19. 
Papuan, 78. 
Papuans, Australian, 84. 
Parra, 290. 
Parra jacana, 322, 341. 
Parrot, 291. 
Parrots, 289, 292, 302, 304, 310, 311, 314. 
Partridge, Grey, 317. 
Passer domesticus, 322. 
Passerine, 285. 
Passerine birds, 306. 
groups, 289. 
Pavo, 317. 
Pavo cristatus, 285, 316. 
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