4S. DRTOTRIOKCTIIS. 27ii 



Bill of Bryotriorchis spectdbilis. 



1. LryotriorcMs spectabilis*. 



Astur spectabilis, ScJil Xvderl Tijdschr. i. p. 13, pi. 6 (18G4) ; Gray, 



Haml-1. B. i. p. 29 (1869). 

 Diyotriorchis spectabilis, iShelleij, Ibis, 1874, p. 91. 



Adult. Above dark browu on tbe bead and interscapulary region , 

 which are shaded with ashy grey, the feathers of the nape and hind 

 neck with conspicuous white bases, as also the scapulars ; wing- 

 coverts brown, the least ones with narrow white edgings ; greater 

 coverts and quills brown, barred with darker brown, the inner \veb 

 of the quills white from the base upwards, the bars showing very 

 plainly below ; upper tail-covcrts dark brown, tipped with white, 

 before which the feathers are subterminally darker brown ; tail 

 brown, barred across with six blackish bands, narrowly tipped -ndth 

 white; sides of face and of neck pale asliy brown, with a distinct 

 moustachial stripe of black ; under surface of body white, the throat 

 and chest washed with buify fawn-colour, the former with a broad 

 central streak of black ; breast and beUy with distinct black spots on 

 the tip of each feather, the lower abdomen and under tail-coverts 

 with small spots of rufous ; axillaries, flanks, and thighs broadly 

 barred with blackish, the latter more regularly ; under wing-coverts 

 bufiy white, distinctly spotted with black. Total length 22-5 inches, 

 culmen 1-9, wing 11-9, tail 10-4, tarsus 2-45. {Mus. G. E. 

 ShelJey.) 



Younger (type of species). General colour brown, the dorsal 

 feathers darker brown, the least wing-coverts and the upper tail- 

 coverts with small buffy white spots at the tips of the feathers ; bases 

 of the feathers of the crown, hind neck, scapulars, greater wing- 

 coverts, and rump white, causing a slightly streaked appearance on 

 the head and neck ; throat white, with a central black streak and a 

 narrow moustachial line on each side ; rest of under surface white, 

 tinged with rufous on the chest and flanks wherever there are black 

 bars ; chest conspicuously spotted with black, the flanks broadly 

 barred with brown, the abdomen less distinctly spotted with black. 



* This is Terv probably tbe bird referred to by Cassin (Pr. Phil. Acad. 1865, 

 p. 2) as Spihrjiis barfia, from Gaboon. 



