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OF BIRDS. O 
48. Helotarsus, Smith, 1830. Terathopius, Dess. 1830. 
Teratopius, Pr. B. 1849. (Falco ecaudatus, Shaw.) 
•49. Haliastur, Selby, 1840. Halioeetus, Sw. 1837. Den- 
tiger, Hodgs. 1844. Ictinoaetus, Kaup, 1844. Ictinaetus, 
Agass., nec Jerd . Milvaquila, Burm. 1850. (Falco indus, 
Bodd.) 
Subfam. IY. Falconing, Sw. (G. of B. p. 19). 
50 . Falco, Mcehr. 1732, nec Linn. 1735. Falco, 4 div. Gm,. 
< 1788. Hierofalco, Cuv. 1817, et Boie, 3 822. Rhyncho- 
don, Nitzsch, 1840. Ichthierax, Kaup, 1844 a . Euhierax, 
Webb fy Berth. 1844. Jerafalco, Kaup, 1851. (Falco 
peregrinus, Linn.) 
-f~~b i. Gennaia, Kaup, 1847. (Falco jugger, Gr.) 
-^52. Hypotriorchis, Boie, 1826. Falco, Boie, 1822. Den- 
^ drofalco, G. R. Gr. 1840. (Falco subbuteo, Linn.) 
—^53. Aesalon, Kaup, 1829. Astur, Boie, 1826, nec Lacep . 
f Tinnunculus, p. Vieill. 1807 L HypotriOTchis, p. Boie , 
1828. (Falco aesalon, Gm.) 'fCt* . 
54. Ieracidea, Gould, 1837. Hieracidea, Strichl. 1841. 
Jeracidea, Kaup, 1844. (Falco berigora, Vig. fy Horsf.) 
*J~55. Tinnunculus b , Vieill. 1807 et G. R. Gr. 1840. Falco, 
* Sav. 1809. Cerchneis, Boie, 1826. iEgypius, Kaup, 
1829, nee Sav. 1809. Falcula, Hodgs. 1837. (Falco 
tinnunculus, Linn.) LfeL- * 
56. Tichornis, Kaup, 1844. (Falco cenchris, Naum.) 
57. Erythropus, Brehm, 1828. Pannychistes, 1829, et 
Pannycliestes, 1847, Kaup. Panychistes, Pr. B . 1849. 
(Falco vespertinus, Linn.) 
*JL58. Poecilornis, Kaup, 1844. Paecilornis, Pr. B. 1849. 
f (Falco sparverius, Linn.) 
1*59. Po li hie rax et Poliohierax, 1847, et Poliojerax, 1851, 
Kaup. (Falco semitorquatus. Smith.) 
*60. Harpagus, Vig. 1824. Bidens, Spix, 1824. Diodon, 
Less. 1831, nec Linn. 1766. Diplodon, Nitzsch, 1840. 
(Falco bidentatus, Lath.) 
f61. Spizia/teryx, Kaup, 1851. (Harpagus circumcinctus, 
I Kaup.) 
4^*62. Ierax, Vig. 1824, nec Leach, 1816. Ilierax, Cuv. 1829. 
■ Jerax, et Zerax, Kaup, 1851. (Falco cserulescens, Linn.) 
• Not employed after this date. The type was Falco frontalis , Daud. 
b Not employed in 1816 nor in 1818. 
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