ADDITIONAL REMARKS. 
923 
Geothlyits trichas, Cab., p. 241.—A specimen from Fort Briclger has the light hand 
margining the black of forehead posteriorly, extended over nearly the whole crown, and of a 
whiter shade than usual. This is scarcely indicative of a specific difference unless it should 
prove to be constant in western specimens, which does not appear to be the case. 
Geothlyi>is macgillivrayi, Baird, p. 244.—Fort Tejon. J. Xantus de Yesey. Fort Laramie 
and Fort Bridger. 
Helminthophaga rupicapilla, Baird, p. 256.—Fort Tejon, J. Xantus de Yesey. 
Dendroica townsendii, Baird, p. 269. Cantonment Burgwyn, N. M. Dr. W. W„ Anderson. 
Dendroica nigrescens, Baird, p. 270.—According to Mr. Sclater, the Sylvia halseii of Giraud 
is the female of this species. It is found at Oaxaca. Mr. de Yesey has collected it at Fort Tejon. 
Pyranga rubra, Yieill., p. 300.—A curious variety of this species, shot near Niles, Michigan, 
probably a male, has been furnished for examination by Dr. Sager, of Ann Arbor. It has the 
wing and tail black, as usual; but all the rest of the plumage is saffron yellow, instead of olive 
green above and yellowish beneath, as in the young male generally. There is a slight resemblance 
to P. ludoviciana ; but the yellow is not pure lemon color, but has an orange shade, and the 
yellowish bands of the wings and the red of head are wanting. 
IIirundo lunifrons, Say, p. 309.—Mr. Sclater considers the II. melanogaster of Swainson 
(Petrochelidon sivainsonii, Sclater) as quite distinct, and more allied to H. fulva. 
Progne, -?—A Progne collected by Mr. Wurdemann at Cape Florida, May 18, 
1858 (No. 10368), has the following characters : 
Tail deeply forked (depth .80 of an inch). First quill rather shorter than second. Bill 
very broad. Above glassy steel blue and purple, as in P. purpurea ; under parts dark smoky 
brown, passing on the belly into dull whitish. Under coverts whitish at base, passing into 
mottled brown to the tip. Length, before skinning, 1.50 ; extent, 15 ; wing, 5.50. 
This skin differs from any specimens before me of P. purpurea in rather smaller size and the 
differently colored under plumage. The dark tail coverts separate it from P. dominicensis and 
clialybea. It may, after all, however, be nothing more than a peculiar stage of plumage of P. 
purpurea. 
Ampelis garrulus, Linn. p. 311. Mr. Drexler saw “millions” of this species while in the 
winter camp of the South Pass wagon road party, at the head of Powder river, Nebraska. Every 
tree for miles was filled with them, the flock rivalling that of the wild pigeon in its size. 
Cichlopsis nitens, Bd. p. 320.—Mr. Sclater writes that the type of Cichlopsis ( Turdus 
p 
leucogonys of Berlin Museum) is very different from Ptilogonys nitens , Sw. lie proposes for 
the latter the generic name of Plminopepla , Sclater. 
Myiadestes townsendii, Cab., p. 321.—Mr. Sclater is decided as to the difference of M. 
obscurus. 
Collyrio borealis, Baird, p. 324.—A male shrike in good spring plumage, collected at Fort 
Bridger, differs from a Pennsylvania specimen, killed in November, in rather larger size, clearer 
grey above, and nearly white upper tail coverts. 
Harporhynciius crissalis, Henry, p. 351.—This name was erroneously printed in the 
Proceedings ot the Philadelphia Academy as T. dorsalis. The page was afterwards cancelled 
and reprinted. 
A second specimen has been collected at Fort Yuma by Lieutenant Ives’s party. 
Troglodytes hyemalis, Yieill., p. 369.—Fort Tejon. J. Xantus de Yesey. 
Certiiia mexicana, Gloger, p. 373.—Additional specimens from the west all show a much 
longer bill than eastern ones, tending to substantiate the existence of a second species. 
