546 BULLETIN 5 0, UNITED STATES NATIONAL MUSEUM 



scales; upper tail coverts greatly developed, covering nearly 

 basal two-thirds of tail; size larger (wing more than 330 mm.). 



Phalcoboenus (extralimital) " 

 //. Tomial tooth and notch distinctly indicated; malar region normally 

 feathered; outer toe decidedly longer than inner toe; hallux 

 shorter than basal phalanx of middle toe; claws strongly curved, 

 sharp; planta tarsi with two distinct rows of quadrate scutella; 

 upper tail coverts normal, covering only about basal third of 



tail; size smaller (wing less than 300 mm) Milvago (p. 588) 



(id. Tarsus scarcely longer than middle toe without claw, the acrotarsium 

 (as well as planta tarsi) without large scutella; outer toe very much 

 longer than inner toe, which is but little longer than hallux; inner 

 webs of primaries very shallow^ly sinuated; habits arboreal, insecti- 

 vorous, and frugivorous Daptrius (p. 580) 



cc. Maxillary tomium with a prominent toothlike subterminal process and 

 mandibular tomium with a corresponding notch; one or two (only) 

 outer primaries emarginated much beyond middle portion of inner web. 

 d. Tarsus nearly twice as long as middle toe, without claw, the latter 

 exceeding longest lateral toe by much less than combined length of 

 its last two phalanges; planta tarsi with two rows of large, well- 

 defined scutella; longest primary exceeding distal secondary by 

 only about one-third the length of wing; fourth, or third and fourth, 

 primaries longest, the first (outermost) shorter than seventh; inner 

 webs of four outer primaries emarginated, the emargination far 

 from tips; tail graduated for more than one-fourth its length. 



Spiziapteryx (extralimital) " 



" Phalcoboenus d'Orbigny and Lafresnaye, Mag. de Zool., vii, 1837 (Synops. 

 Avium, p. 2) (type, by monotypy, P. montan-us d' Orhigny = Aquila megaloptera 

 Meyer) ; d'Orbigny, Voy. Am6r. M^rid., iv, 1837, (1834), Ois., pi. 2.— Phalcoboenus 

 (emendation) d'Orbigny, Voy. Am6r. M^rid., iv, 1835-44, Ois., 50. — Phalcohenus 

 (emendation) Isador GeofTroy, ficho du Monde Savant, ii, 1836, 160. — Phalcobae- 

 nus (emendation) Bonaparte, Rev. Mag. Zool., ser. 2, ii, 1850, 479. — FaJcobaenus 

 (emendation) Lafresnaye, Rev. Zool., ii, 1839, 196. — Falcoboemts (emendation) 

 Giebel, Thes. Orn., ii, 1874, 172. — Phalocohoenus (emendation) Fraser, Proc. Zool. 

 Soc. London, 1843, 108. — Phascobaenus (emendation) Jardine and Selby, Illustr. 

 Orn., new ser., No. 5, 1839, text to pi. 24:.—Oronertus Heine, in Heine and 

 Reichenow, Norn. Mus. Hein. Orn., 1890, 272 (to replace Phalcoboenus on grounds 

 of purism). — Oronertes (emendation) Sharpe, Zool. Record, xxvii, 1892, Aves, 35. — 

 Senex (not of G. R. Gray, 1838) J. E. Gray, in Jardine and Selby, Illustr. Orn., 

 new ser., No. 5, 1839, text to pi. 24 (type, by monotypy, Faico australis Gmelin). — 

 Aetotriorchis Kaup, C!assif. Saug. Vog., 1844, 124; Isis, 1847, 357; in Jardine's Contr. 

 Orn., 1850, 79 (type, Morphnus novae-zealandiae Cuvier = Falco australis Gmelin). — 

 Aetotriorchis (emendation) Gray, Hand-list, i, 1869, 5.—Al'triorchis (emendation) 

 Sharpe, Cat. Birds Brit. Mus., i, 1874, 34. — Ilelotriorchis Reichenbach, Av. Syst. 

 Nat., 1850, pi. 98 (type, Falco ausfralis Gmelin). 



"3 Spiziapteryx Kaup, Archiv fiir Naturg., 1851, Bd. 1, 89 (nomen nudum); 

 Proc. Zool. Soc. London, 1851 (published Oct. 28, 1852), 43 (type, by monotypy, 

 Harpagus circumcinctus Kaup). — Spiziopteryx (emendation) Bonaparte, Compt. 

 Rend., xli, Oct. 1855, 652. — Hemiierax Burmeister, Reise La Plata Staaten, ii, 

 1861, 437 (type, by monotypy, Harpagus circumcinctus Kaup). — Hemihierax 

 (emendation) Hartlaub, Archiv fiir Naturg., 1863, Bd. 2, 51 (southern South 

 America (Argentina)). Monotypic. 



