572 lilUliS OF THE (iALArA(rOS ABCnirELAdO—nilKrWAY. VOL. XIX. 



Genus PYROCKPHALUS, Gould. 



PyrocepTiaUis, Gould, Zool. Voy. lieagle, III, Birds, 1841, p. 44. Type.s, ''I'ljro- 

 ciphalus parrirontris (Gould) aud Muacicapa coronata (Auct?). ''' 



Eangc. — The wliole of tropical and subtropical America, except West 

 Indies, southern Florida, and parts of Central America. Galapagos 

 Archipelago (several peculiar si)ecies or local forms). 



Kky to the Gal.m'auos fok.m.s or the oexis PYROCEPHALfs, Gorr.i). 



o'. Adult males with back, etc., very dark brown, sometimes aluKist black; 

 lar-ier. Wiug, 2.27-2.60; tail, 1.94-2.20; exposed euluieu, 0.40-0.50; 

 tarsus, 0.70-0.76. 

 h '. Adult uKiles pure red beneath. 



(''. Adult females clear yellow beneath, 

 rf'. Adult feuuile with under parts light naples yellow. (.James Island.) 



1, P. 7iatius (p. 572). 

 d -. Adult female with under parts liglit chrome yellow or deep naplcs yel- 

 low; top of head more tinged with yellow; upper parts browner. 



(Indefatigable and Albemarle islands) 2. P. intercedena (p. .575). 



C-. Adult females buff beneath. (Charles Island) 3. P. carohnsia (p. 576). 



ft'. Adult male orange-red beneath. (Abingdon Island; Bindloo Island f.) 



4. P. abiiifidoni (p. 578). 



a-. Adult male with back, etc., lighter grayish brown; smaller. Wing, 2.08- 



2.37; tail, 1.80-2.05; exposed culmen, 0.35-0.42; tarsus, 0.62-0.73. 



(Chatham Island) 5. P. duhius (p. 579). 



I am well aware of the very unsatisfactory character of the above 

 key, but I have very few specimens at hand from which to construct it, 

 Dr. Baur's larger series having been returned to him. Furthermore, the 

 difierence between the several forms is most obvious in the females, and 

 of P. ab'uigdoni, the only one excepting the very distinct P. dithins^ in 

 which the adult male is noticeably different, the female is still unknown.^ 

 With the exception of F. duhim, Gould, of Chatham Island, which is 

 sufliciently distinct, in my opinion, to hold specific rank, the other forms 

 may proi>erly be considered as merely local races of P. nanus, more or 

 less differentiated, the differentiation most marked in P. carolenshi and 

 P. abingdoni. 



PYROCEPHALUS NANUS. Gould. 



Pi/rocepliahis nanus, Gould, Zool. Voy. Beagle, III, Birds, 1841, p. 45, pi. vil 

 (Galapagos Archipelago). — Si'Ndkvall, Proc. Zool. Soc, 1871, j). 125 (i)art) 

 (.lames Island K—Riugway, I'roc. U. 8. Nat. Mus.. XII, 1889, p. 112 (part) 

 (Jaiues Island). 



Specific characters. — Adult male with pileuin and under parts uniform 

 bright vermiliou red, the sides of head and upper parts plain blackish 



^^ Mumicapa rttbina, Bodd;ert (1783), M. coronata, Gmelin (1788). 



^The adult females whose measurements are given on page .579 were skinned from 

 alcohol and have their coloration so radically changed that they are unfit for com- 

 parison in this respect. It may be remarked that the red of the adult males is wholly 

 destroyed by Ibc immersion iu alcohol. 



