4 BULLETIN 5 0, UNITED STATES NATIONAL MUSEUM 



>Accipitres Mebrem, Abh. Akad. Wiss. Berlin for 1812, 1816, 239 (includes 

 Falcones). 



= Sarcorhamphi Ridgway, Bull. Illinois State Lab. Nat. Hist., No. 4, 1881, 190; 

 Man. North Amer. Birds, 1887, 218, in text; Orn. Illinois, i, 1889, 488.— 

 American Ornithologists' Union, Check-list, 1886, 182; ed. 3, 1910, 

 152. — Oberholser, Outl. Classif. North Amer. Birds, 1905, 2. — Forbush, 

 Birds Massachusetts and Other New England States, ii, 1927, 87. 



= Pseudogryphi Forbes, Ibis, 1884, 119. — Sharpe, Rev. Rec. Att. Classif. 

 Birds, 1891, 78 (suborder). 



= Cathartes Seebohm, Classif. Birds, 1890, xi, 16. 



r=Mimogypes Seebohm, Ibis, 1890, 203. 



= Cathartiformes Brabourne and Chubb, Birds South Amer., i, 1912, 61. — 

 Chapman, Bull. Amer. Mus. Nat. Hist., xxxvi, 1917, 237. 



= Cathartidiformes (order) Sharpe, Rev. Rec. Att. Classif. Birds, 1891, 78; 

 Hand-list, i, 1899, xx, 240.— Swann, Synopt. List Accip., pt. 1, 1919, 1. 



= Catharteae Ptcraft, Proc. Zool. Soc. London, 1902, 318, 319. 



= Cathartae Gadow, Classif. Vertebr., 1898, 33. — Knowlton, Birds of World, 

 1909, 48. — Pycraft, Hist. Birds, 1910, 49, in text. — Wetmore and 

 Miller, Auk, xliii, 1926, 341. — Wetmore, Proc. U.S.Nat. Mus., Ixxvi, art. 

 24, 1930, 3; Smiths. Misc. Coll., Ixxxix, No. 13, 1934, 5; xcix. No. 4, 1940. 

 29; No. 7, 1940, 5. — American Ornithologists' Union, Check-list, ed. 4, 

 1931, 61.— Peters, Check-list Birds of World, i, 1931, 189. 



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



= Vultures (suborder) Swann, Monogr. Birds of Prey, i, pt. 1, 1924, 1. 



Pscudo-vultiires, resembling, superficially, the true Vultures ^ but 

 differing profoundly from these, as well as from all other Falconi- 

 formes, in anatomical characters, as follows: 



Nares holorhinal, pervious, elongated longitudinally; maxillopala- 

 tines widely separated, but bridged by a process from each meeting 

 and co-ossif3^ing with the median portion of the nasal septum; hallux 

 relatively small, elevated, nonfunctional, connected with the flexor 

 perforans digitorum^ (the latter also connected with second and third 

 digits) , the flexor longis hallucis leading to the third and fom'th, some- 

 times to the second, third, and fourth digits, but never to the hallux; 

 a distinct web or membrane between the basal phalanges of the second 

 and third (inner and middle) toes; intrinsic muscles of larynx wanting; 

 ambiens, semitendinosus and accessory semitendinosus muscles 

 present; oil gland nude; myological formula AXY-j- or XY+. 



Palate indirectly desmognathous, the maxillopalatines widely 

 separated (but bridged as above described) and having the form of 

 scroll-like plates; anterior palatine vacuity very large; basipterygoid 

 processes present, articulating with middle of pterygoids; olfactory 

 chamber of great size; no trace of internasal septum; lachrymals fused 

 with the frontals, and without free posterior longitudinal spurs; vomer 

 wanting; metasternum with two pairs of notches, the outer pair some- 



1 Subfamily Aegypiinae of the family Accipitridae, suborder Falcones. 



2 In this character agreeing with certain Coraciiformes (Alcyones, Coraciae, 

 and Bucerotes). 



