24 PASSERES 
cinnamon brown edges; tertials cinnamomeous red. Sides of the head olive gray, on the ear 
coverts a patch of pale buff. Under surface light cinnamon red, throat rather paler than the 
rest. Bill horn brown, base of lower mandible whitish. Wing 5o 1/2, tail 36 1/2, tarsus 14 1/2, 
bill 9 mm. 
Geographical Distribution. British Guiana, Cayenne, Eastern Ecuador, Eastern Peru, 
and Western Brazil. Monotypic. 
1. Neopipo cinnamomea (Lawrence). 
Pipra? cinnamomea Lawrence. Proc. Acad. Natur. Sc. Philad. 1868, p. 429 (« Upper Amazon »). 
Neopipo rubicunda Sclater & Salvin, Proc. Zool. Soc. Lond. 1869, p. 438, t. 30, f. 3 (Chamicuros, Eastern Peru). 
Hab. Cayenne; British Guiana (Camacusa); Eastern Ecuador (Sarayacu); Eastern Peru (Chamicuros) ; 
Western Brazil (Humayta on the Rio Madeira). 
15. GENUS SCHIFFORNIS DEs Murs 
Schiffornis [Bonaparte M.S. (1)], Des Murs in : Castelnau’s Voyage, Oiseaux, Livr. 18 (June 1856), 
p. 66 (type : Schiffornis major Des Murs). 
Characters. The only member of this genus differs from Scotothorus only by its 
decidedly shorter tarsus, and rather shorter, wider and more curved bill, The uniform rufous 
coloration is another point of distinction. The two so-called species, S. major and S. rufa, 
recognized in the Catalogue of Birds, Vol. 14, p. 323, are merely phases of a single form, as 
I have ascertained by examining a good series of skins in the Paris and Vienna Museums. 
In the type of S. major from Sarayacu and in a female from Fonteboa, Rio Solimoéns (both 
in the Paris Museum) the forehead, crown and nape are cinereous, intermixed with numerous 
ferruginous feathers, only the sides of the head being pure cinereous. A quite similar 
specimen (*) from the Rio Amajau (a tributary of the Rio Negro) is in the Vienna Museum. 
A female, collected by the Castelnau expedition, has the forehead and the ear coverts ferrugi- 
nous, while the crown and nape are cinereous mixed with ferruginous. Another female from the 
same source has the forehead and sides of the head cinereous, the crown and nape pure 
ferruginous (without any gray). Two o'ot from the Rio Amajau and one female from Borba, 
Rio Madeira, — the types of H. rufium Pelzeln — in the Vienna Museum have the top and 
sides of the head ferruginous, there being but a slight cinereous admixture round the eye. 
Since the two extremes occur at the same locality (Rio Amajau) and as there is every gradation 
between them, their identity is established beyond doubt, though I am unable to explain the 
difference, which is certainly not sexual. In the series examined by me, the length of the wing 
varies from 78 to 85, that of the tail from 56 to 63 mm. 
Geographical Distribution. Cayenne (Oyapoc) and Amazonia : Rio Amajau (Rio: 
Negro), Borba (Rio Madeira), Fonteboa (R. Solimoéns), Rio Jurua; Nauta, Samiria, Sarayacu 
(Eastern Peru). Monotypic. 
(1) This name generally attributed to Bonaparte, was first published in the Consp. Voluc. Anisod. p. 4, 1854, where. 
however, it is a nomen nudum, for two of the three species mentioned (S. major and S. minor) were undescribed at that 
time, while the third (S. furdina) belongs to Scotothorus. 
