SYSTEMATIC INDEX. 



Page 

 Sub-Fam. 4. Gypaetinaa . . 200 



32. Gypaetus, Storr 260 



Sub-Fam. 5. Aquilinaj . . 260 



33. Uroaetus, Kaup 260 



34. Palseocircus, Milne-Eiho. . 260 



35. Aquila, Briss. . . .* 260 



36. Archibuteo, JBrehm .... 262 



37. Eutolmae'tus, Blyth 262 



38. Palaeohierax, Milne-Edw. 262 



39. Lophotriorchis, Sharpe . . 262 

 JO. Ictinaetus, Jerd 263 



41. Spiziastur, Gray 203 



42. Spizaetus, Vieill. 263 



43. Lophoaetus, Kaup 264 



44. Asturimila, FinschSfHartl. 264 



45. Herpetotheres, Vieill. . . 264 



46. Dryotriorchis, JShelley . . 264 



47. Eutriorchis, Sharpe .... 205 



48. Circaetus, Vieill 265 



49. Pithecopnaga,0</t7. Grant. 265 



50. Spilornis, Gray 265 



51. Butastur, Hodgs 266 



52. Helotarsus, Smith 266 



53. Haliaetus, Savigny 267 



54. Thalassoaitus, Kemp 267 



55. Gypohierax, Riipp 267 



56. Haliastur, Selby ?<S7 



57. -Elanoides, Vieill 268 



58. Nauelerus, Vig 268 



59. Milvus, Cub 268 



60. Lophoictinia, Kaup .... 209 



61. Rostrhanius, Less 269 



62. Leptodon, Sundev 269 



63. Gypoictinia, Kaup 269 



04. Elan us, Savigny 269 



65. Gampsonyx, Vig 270 



66. Henicopernis, Gray .... 270 



67. Macheerhamphus, West*rm.270 



68. Pernis, Cuv 270 



69. Baza, Sodgs 271 



70. Harpagus, Vig 272 



71. Ictinia, Vieill 272 



72. Microhierax, Sharpe .... 272 



73. Poliohierax, Kaup 273 



74. Spiziapteryx, Kaup .... 273 



75. Harpa, Bp 273 



76. Falco, Linn 273 



77. Hierofalco, Cuv 276 



78. Hieracidea, Gould 276 



79. Oerchneis, Boie. . 276 



80. Erythropus, Brehm .... 278 



81. Dissodectes, Sclater 278 



Sub-Order III. Pandiones. 279 



1. Pandion, Savigny 279 



2. Polioaetus, Kaup 279 



VOL. I. 



Page 



Order XXVI. 



STRIGIFORMES 280 



Fam. I. Bubonid-e: 280 



Sub-Fam. 1. Asioninse . . 280 



1. Asio, Briss 280 



Sub-Fam. 2. Ketupinae . . 281 



2. Ketupa, Less 281 



3. Scotopelia, Bp 281 



Sub-Fam. 3. Buboninse . . 282 



4. Bubo, Cuv 282 



5. Necrohyas, Milne-Edw. . . 283 



6. Huhua, Hodgs 283 



7. Pseudoptvnx, Kaup .... 284 



8. Nyctea, Steph 284 



9. Pulsatrix, Kaup 284 



10. Scops, Savigny 284 



11. Lophostrix, Less 289 



12. Psiloscops, Coues 289 



13. Heteroscops, Sharpe .... 290 



14. Gymnoscops, Tristr 290 



15. Sceloglaux, Kaup 290 



16. Ninox, Hodgs 290 



Sub-Fam. 4. Syrniinas . . 293 



17. Syrnium, Savigny 293 



] 8. Scotiaptex, Swains 294 



19. Ciccaba, Wagler 295 



Sub-Fam. 5. Nyctalinse . . 295 



20. Gisella, Bp 295 



21. Nyctala, Brehm 295 



22. Surma, Baud. 296 



23. Athene, Boie 296 



24. Heteroglaux, Hume .... 296 



25. Speotyto, Gloger 297 



26. Gymnasio, Bp 297 



27. Glaucidium, Boie 297 



28. Mioropallas, Coues 299 



Sub-Fam. 6. Photodilinee . 300 



29. Photodilua, Isid. Geoffr. . . 300 



30. Heliodilus, Milne-Edw. . . 300 



Fam. II. Steigida; 



300 



1. Strix, Linn 300 



2. Badioste^, Amcyh 302 



