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ordero, and # Range within the Region. Range beyond the Region. 246. Agelastes 1 West Africa 247. Acryllium 1 | West Africa 248. Numida 9 |Africa to Natal and Madagascar TURNICIDAE. 249. Turnix ... 4 |S. Africa and Madagascar Palaearc., Orient., Austrl. 250. Ortyxelos 1 | Africa ACCIPITRES. WULTURIDAE. 251. Gyps ... ... 2 Africa, except W. sub-region | Palaearctic, Oriental 252. Pseudogyps ... 1 | N. E. Africa to Senegal Oriental 253. Otogyps... 1 | N. E. and S. Africa Palaearctic, Oriental 254. Lophogyps 1 | N. E. and S.Africa and Senegal 255. Neophron 2 Africa, excl. west coast S. Palaearctic, Oriental FALCONIDE. 256. Polyboroides ... 2 Africa and Mad 257. Circus ... 4 |Africa and Madagascar Almost Cosmopolite 258. Urotriorchis ... | 1 || W. Africa 259. Melieraa, 5 Africa, excl. west coast 260. Astur 5 |Africa and Madagascar Almost Cosmopolite 261. Nisoides ... 1 |Madagascar 262. Eutriorchis 1 Madagascar 263. Accipiter 8 Africa and Madagascar Almost Cosmopolite 264. Buteo 5 Africa and Madagascar Cosmop., excl. Austral 265. Gypaetus 1 | N. E. and S. Africa S. Palaearctic 266. Aquila ... 5 || All Africa Nearc., Palaearc., Indian 267. Nisaetus... 1 W. Africa S. Palaearctic, Oriental, Australia 268. Spizačtus 3 || All Africa Neotropical, Oriental to N. Guinea 269. Lophoactus 1 || All Africa 270. Asturinula 1 Tropical Africa 271. Dryotriorchis 1 || W. Africa 272. Circaetus 5 || All Africa Palaearctic, Oriental 273. Butastur 1 | N. E. Africa Oriental to New Guinea 274. Helotarsus 2 |Tropical and S. Africa 275. Haliaeetus 2 |The whole region Cosmopolite, excl. Neotropical region 276. Gypohieraz ... 1 | West and East Africa 277. Elanoides 1 | West and N.E. Africa 278. Milvus ... 1 |The whole region The Eastern Hemisphere 279. Elanus ... ... l l ; Africa India to Australia 280. Machaerhamph 1 |S. W. Africa and Madagascar |Malacca 281. Pernis ... o 1 S. Africa and Madagascar Palaearctic, Oriental 282. Baza ... ... [ 3 || Africa and Madagascar India to N. Australia 283. Poliohierax ... l l | East Africa Burmah 284. Falco 4 || All Africa Almost Cosmopolite 285. Cerchneis 8 The whole region Almost Cosmopolite SERPENTARIIDAE. 286. Serpentarius ... | 1 || The greater part of Africa
Range within the Region. Range beyond the Region.
Peculiar or very Characteristic Genera of Wading or Swimming Birds,
THIS region is of comparatively small extent, but it has a very diversified surface, and is proportionately very rich. The deserts on the north-west of India are the debatable land that separates it from the Palaearctic and Ethiopian regions. The great triangular plateau which forms the peninsula of India is the poorest portion of the region, owing in part to its arid climate and in part to its isolated position; for there can be little doubt that in the later Tertiary period it was an island, separated by an arm of the sea (now forming the valleys of the Ganges and Indus) from the luxuriant Himalayan and Burmese countries. Its southern extremity, with Ceylon, has a moister climate and more luxuriant vegetation, and exhibits indications of a former extension southwards, with a richer and more peculiar fauna, partly Malayan and partly Mascarene in its character. The whole southern slopes of the Himalayas, with Burmah, Siam and Western China, as well as the Malay peninsula and the IndoMalay islands, are almost everywhere covered with tropical forests of the most luxuriant character, which abound in varied and peculiar forms of vegetable and animal life. The flora and fauna of this extensive district are essentially of one type throughout; yet it may be usefully divided into the IndoChinese and the Malayan sub-regions, as each possesses a number of peculiar or characteristic animals. The former subregion, besides having many tropical and sub-tropical types of its own, also possesses a large number of peculiarly modified temperate forms on the mountain ranges of its northern