088 - Bulletin American Museum of Natural History. [Vol. XXXIV. 
Central American form. ‘The type which Sclater (P. Z. S., 1856, p. 86) 
examined in the Paris Museum, in 1856, is doubtless now too faded to be 
certainly identified with either form. Sclater, however, remarks that it 
resembles A. albinucha, except for the color of the underparts, when it may be 
of significance to observe that albinucha resembles gutturalis rather than 
brunnescens in the color of the back. 
