77 
researches of M. Delattre, by whom it was brought from the Isthmus 
of Panama. The only species I can find which resembles it in some 
degree is Cyphorinus leucostictus,Cab. Orn. Notiz. in Wiegm. Archiv, 
1844, p. 206; Schomb. Reise, iii. p. 673. sp. 37, from Mexico and 
Guiana ; but that would appear to be a much smaller bird, and has 
the under parts from the chin to the belly white, with the sides 
and crissum reddish-brown. 
Among the rare types in the Derby Museum is Mr. Eyton’s 
Dendrevetastes capitoides (Cont. Orn. 1851, p. 76). This does not 
seem to me different from M. de Lafresnaye’s Dendrocolaptes tem- 
mincki (Rev. et Mag. de Zool. 1851, p. 154. pl. 4), named about 
the same time, but I think the latter term has a slight precedence 
in point of date, and the bird will therefore stand as Dendrexetastes 
temmincki, if thought worthy of continuing to rank as a separate 
genus. The Derby Museum specimen is, to judge by its make, de- 
cidedly a Cayenne skin. The Denrocolaptes temmincki in the Ley- 
den Museum is said to be from Bogota. 
Upon examining Dr. Kaup’s Psaris fraseri, of these Proceedings, 
1851, p.47, I found it the same as Tityra albitorques, Du Bus, 
Bull. Ac. Brux. 1847, xiv. pt. 2. p.104; and his Psaris parinus, 
ib. p. 48, seems to me very closely allied to, if not identical with, 
Pachyramphus atricapillus (Gm.), Pl. Enl. 687. fig. 1. 
I can also confirm what Dr. Hartlaub has said in Wiegmann’s 
Archiv, 1854, that Todirostrum pectorale, Kp., of the same paper 
is T. granadense, Hartl., T. ruficeps, Kp.=T. multicolor, Strickl., 
and Setophaga flammea, Kp. = 8S. intermedia, Hartl. R. Z. 1853, 
p- 5. Butin the two latter cases Dr. Kaup’s names were first given, 
though from the long delay in publishing the Proceedings the others 
were first published. 
When criticising other writers, it is proper also to mention my own 
mistakes ; and I take this opportunity therefore of stating, that m 
Tenioptera striaticollis of these Proceedings, 1851, p. 193 (of which 
the Derby Museum contains examples), has been long ago named 
and figured in D’Orbigny’s Voyage as Tyrannus rufiventris, p. 312. 
pl. 32. fig. 2. 
May 8, 1855. 
G. R. Waterhouse, Esq., in the Chair. 
Mr. Gould exhibited a portion of a collection of birds formed by 
Mr. Hauxwell in a district lying on the eastern side of the Peru- 
vian Andes, in the neighbourhood of the River Ucayali, one of the 
tributaries of the Upper Amazon. Mr. Gould observed, that the 
exploration of this particular district had been one of the earliest 
