96 ONYCHOGNATHUS 



Genus VIII. ONYCHOGNATHUS. 



Bill somewhat variable, but generally fairly strong, with the culaien 

 curved excepting in the subgenus C inn xmop term, the one species of which 

 has the bill slender and the culmen nearly straight ; bill black excepting in 

 the one species of the subgenus Pilorhiaus, in which it is white. The 

 nasal orifice is exposed, excepting in two species, 0. albirostris and 

 O. salvadorii, and the latter was made the type of Galiopsar on account 

 of its having a frontal lump or crest of brittle-like plumes. Wings black 

 and rufous, alike in both sexes, with the glossy edges of the secondaries 

 sometimes more or less disintegrated. Tail variable, in length and gradua- 

 tion of the feathers. Tarsi and feet blackish and in all their other 

 characters the males closely resemble each other, but the plumage of the 

 females is more variable ; it resembles that of the male in 0. fratcv, 0. 

 caffer, and 0. salvadorii and differs in the others in the grey colouring of 

 the head and neck only, excepting in 0. teniiirostris, in which the female has, 

 in addition, some grey edges to the feathers of tlie lower back and breast. 



Type. 



Ptilonorhynchus (non Kuhl.) Riipp. N. Wirb. Vog. p. 22 



(1835) 0. albirostris. 



Onyehognathus, Hartl. Rev. et Mag. Zool. 1.S19, p. 494. 0. fulgidiis. 



Pyrrhocheira, Reichenb. Av. Syst. pi. 53 (1850) .... 0. caffer. 



Amydrus, Cab. Mus. Hein. i. p. 201 (1851) 0. morio. 



Pilorhinus, Cab. I. c 0. albirostris. 



Cinnamopterus, Bp. C. R. xxxvii. p. 830 (1853) .... 0. tcnuirostris. 



Nabouroupus, Bp. Notes Coll. Delattre, p. 8 (1851) . . 0. caffer. 



"Oligomydrus Scbiff." Hartl. Rev. et Mag. Zool. (2) x. 



p. 348 (1858) 0. tenuirostris. 



Hagiopsar, Sharpe, Cat. B. M. xiii. p. 168 (1890) ... 0. tristrami. 



Galeopsar, Sharpe, Ibis, 1H91, p. 241 0. salvadorii. 



The genus, with the exception of one species from Palestine (0. 



tristrami), is confined to the Ethiopian Region, where it is represented l)y 

 eleven known species. 



KEY TO THE SPECIES. 



a. Nostrils exposed, 

 ■fli. Primaries darker; first long primary with entire outer 

 edge black. 

 a". Tail more graduated, longer than wing. 



a^. Larger: wing 52 to 62 inches fulgidiis. ' 



6*. Smaller: wing 4'9 to 5"2 hartlaiibi. ■ . 



h". Tail rounded, shorter than wing . . .... tvalleri. i trv 



