Museums of the United States . 
319 
are sometimes of a rather lighter, more bronzy hue than 
typical birds; hut this coloration does not appear to be 
constant, as we possess some which are intermediate in this 
character. The Peruvian bird agrees with that from the pro¬ 
vince of Antioqnia. 
Anas erythrophthalmus, Max. Beitr. iv. p. 929. 
The position of this species has long been in doubt. The 
single skin in the Wiedcollection appears to he that of a female ; 
and the species is very closely allied to, if not identical with, 
Metopiana peposaca. Unfortunately, I could not find in the 
collection a specimen of that species with which to compare it. 
From measurements I took it would appear to he somewhat 
smaller than M. peposaca ; and the underparts have a rusty 
brownish tinge instead of being white. The face, too, is 
whitish, a character not shown in the other species. Long, 
tot. 19 , 5, alee 8*0, caudse 2'0, tarsi P6, dig. med. 2*3. 
Tringa canutus. 
In our “Notes on the Range of several American Limicolse” 
(P. Z. S. 1873, p. 456), Mr. Sclater and I stated that we had 
never seen examples of Tringa canutus from the eastern coasts 
of South America. Having now seen the bird called T. cinerea 
by Max. (Beitr. iv. p. 735), I find that it is undoubtedly a 
young specimen of the Knot ( T . canutus ). It was obtained 
in Brazil by Prince Maximilian. 
Sterna erythrorhyncha, Max. Beitr. iv. p. 857. 
This is undoubtedly the same as the bird we referred to S. 
maxima , Bodd. (P. Z. S. 1871, p. 567) ; and should any one 
share Dr. Coues’s lingering doubts as to our identification, 
Maximilian^ name, proposed in 1832, must take precedence 
over S. regia , of Gambel, published in 1848. 
Sterna superciliaris. 
S. argentea , Max. Beitr. iv. p. 871. 
The Tern, from Brazil, in the Maximilian collection, called 
Sterna argentea, has a black tip to the bill, and therefore 
differs in this respect from the usual South-American bird, 
to which we have assigned YieilloPs name S. superciliaris. 
I am now disposed to doubt the possibility of distinguishing 
