44. SPIZAETUS. 



259 



Astur atricapillus, Less. Man. (TOm. i. p. 93 (1828). 



Spizastur atricapillus, Gray, List Gen. B. p. 3 (1841) : Kaup, Mus. 



Senck. iii. p. 259 (1845). 

 Spizaetua atricapillus, Gray, Gen. B. p. 14 (1845) ; Burm. Th. Bras, 



p. 05, note (1856) ; Peh. Orn. Bras. p. 4 (1871). 

 Spizaetus melanoleucus, Bp. Consp. i. p. 28 (1850) ; Strickl. Orn. Syn, 



p. 73 (1855); Schl. Mus. P.-B. Astures, p. 14 (1862); Gray, Hand-l. 



1. p. 12 (1869); Scl. >^ Salv. Nomencl. p. 120 (1873). 



Adult male. Above blackish, deeper on the interscapulary region 

 and wing-covertf? ; quills dark brown, slightly tipped with fulvous, 

 and barred across with blackish brown, the primaries externally 

 shaded with greyish, the innermost secondaries paler than the back ; 

 upper tail-coverts paler brown, with indistinct margins of whity 

 brown ; tail ashy brown, slightly tipped with fulvous, and crossed 

 with four blackish bands, the subterminal one decidedly broader ; 

 head, neck, and entire under surface of body pure white, with the 

 exception of a few black markings on the nape and occipital crest ; 

 under wing- and tail-coverts white ; inner lining of quills white, 

 the primaries blackish towards the tip, the secondaries inclining to 

 ashy white, with more or less distinct cross bars of dark brown. 

 Total length 21 inches, culmen 1-5, wing 1.5, tail 9-1, tarsus 2-9. 



Female. A little larger than the male. Total length 24 inches, 

 wing 164, tail 9-5, tarsus 3-2. The specimen in the Museum is 

 apparently a little younger than the male, at least as regards the 

 tail, which has six black cross bands of nearly equal breadth. 



Hab. The same as that of the genus. 



a. 2 ad. St. South America. 



b. S ad. st. South America. Purchased. 



44. SPIZAETUS*. 



Type. 



Spizaetus, VieiU. Anali/se, p. 24 (1816) S. mauduyti. 



Plumipeda, Flem. Phil Zool. ii. p. 234 (18221 S. mauduyti. 



Limnaetus, Vigors, Mem. Raffl. p. 649 (1830) S. caligatus. 



Pternura, Kaup, Mus. Setichenb. iii. p. 259 (1845) S. tyrannus. 



Head of Spizaetus mauduyti (reduced). 



■* The following species have not been examined by me : — 

 Spizaetus africanus. 



Limnaetus africanus, Cctss. Proc. Phil. Acad. 1865, p. 4. 



Spizaetus africanus, Gray, Hand-l. B. i. p. 13 (1869). 



" General form very strong ; bill rgher short, fully curved ; edge of \ipppi- 



... n 



