2 BULLETIN 5 0, UNITED STATES NATIONAL MUSEUM 



= Accipitres diurnes Lesson, ficho du Monde Savant, 9' an., vi, s6r. 2, No. 44 

 1842, col. 1036. 



==Accipitres diurni Gr.\y, Hand-list, i, 1869, 1. 



!>Falconidac Bonaparte, Sagglo Distr. Anim. Vertebr., 1831, 36 (includes 

 Striges) . 



= Aetomorphae Carus, Handb. Zool., i, 1868, 75, 305. 



>Hemeroharpages Sundevall, Of v. Svenska Vct.-Akad. Forh., 1874, No. 2, 

 22 (includes Cariamil). 



>Gypo-Falconidae Engelmann, Die Raubvogel Europas, 1928, 144. 



= Hemeropharpages FtJRBRiNGER, Unters. Morph. Sj-st. Vog., ii, 1888, 1294, 

 1565. 



= Pelargoharpages FtJRBRiNOER, Unters. Morph. Syst. Vog., ii, 1888, 1565 

 (alternative name) . 



= Euharpages FtJRBRiNGER, Unters. Morph. Syst. Vog., ii, 1888, 1294 (alter- 

 native name). 

 XAccipitriformes Sharpe, Rev. Rec. Att. Classif. Birds, 1891, 71 (includes 

 Striges, excludes Cathartae). 



<Accipitriformes Sharpe, Hand-list, i, 1899, xx, 241 (excludes Cathartae). — 

 Swann, Synopt. List Accip., pt. 3, 1920, 3 (excludes Cathartae). 



= Falconiformes Gadow, Classif. Vertebr., 1898, 33. — Oberholser, Outl. 

 Classif. North Amer. Birds, 1905, 2.— Knowlton, Birds of World, 1909, 

 48, 202. — Wetmore and Miller, Auk, xliii, 1926, 341. — Wetmore, Pro 

 U. S. Nat. Mus., Ixxvi, art. 24, 1930, 3; Smiths. Misc. Coll., Ixxxix, No. 13ft. 

 1934, 5; xcix, No. 4, 1940, 29; No. 7, 1940, 5.— B.a.nnerman, Birds Trop., 

 West Africa, i, 1930, 163.— Peters, Check-list Birds of World, i, 1931 

 189. — American Ornithologists' Union, Check-list, ed. 4, 1931, 61. 



Palate completely desmognathous to completely schizognathous; if 

 indirectly desmognathous, not so by intervention of vomer alone; nor 

 in combination with a large vomer and large palatal vacuity; nares 

 holorhinal, and when pervious (Cathartae) associated with functional 

 basipterygoid processes; temporal fossae, when present, confined to 

 lateral aspect of skull; supraorbital grooves absent; vomer blade- 

 shaped, no ossiculum lachrymopalatinum ; the palatines not fused 

 medioposteriorly; an ossified orbitosphenoid. Corpus sterni very 

 large (relatively to size of girdle), oblong, with relatively small antero- 

 lateral processes, which bear facets for articulation of the anterior 

 sternal ribs; metasternum entire, 2-notched, or with two foramina, but 

 posterolateral processes never very large ; articular surfaces for sternal 

 ribs extending up to or beyond middle of sternal plate; coracoid grooves 

 wide, but shallo»v, bordered above by a well-marked "Up"; coraco- 

 humeral groove indistinct; coracoids shghtly overlapping or only 

 touching (sometimes not quite touching) each other, and with well- 

 marked processus lateralis basalis; acrocoracoid very large; furcula 

 U-shaped, very broad, with feebly developed hypocleideum. Pre- 

 synsacral vertebrae all heterocoelous, thoracic vertebrae free (except 

 in Falconidae) ; cervical vertebrae, 13-15. Preacetabular ihum verj^ 

 long and with external lateral border more or less concave; pectineal 

 process wanting; supratrochanteric processes generally prominent and 



