ADDITIONAL REMARKS. 923 



Geothlypis trichas, Cab., p. 241. — A specinien from Fort Bridger has the light band 

 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. 



Geothlypis MACGiLiilVRATi, Baird, p. 244. — Fort Tejon. J. Xantus de Vesey, Fort Laramie 

 and Fort Bridger. 



Helminthophaga ruficapilla, Baird, p. 256.— Fort Tejon. J. Xantus de Vesey. 



Dendroica townsendii, Baird, p. 269. Cantonment Burgwyn, N. M. Dr. W. W. Anderson. 



Dendroica nigrescens, Baird, p. 270. — According to Mr. Sclater, the Sylvia Jialseii of Giraud 

 is the female of this species. It is found at Oaxaca. Mr. de Vesey has collected it at Fort Tejon. 



Pykanga rubrAj Vieill., 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. 



HiRUNDO LUNiFRONS, Say, p. 309. — Mr. Sclater considers the H. melanogaster of Swainson 

 (Petrochelidon sivainsonii, Sclater) as quite distinct, and more allied to H. fulva. 



Progne, ? — A Progne collected by Mr. Wiirdemann 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, 7.50 ; extent, 15 ; wing, 5.50. 



This skin differs from any specimens before me of P. purp^irea in rather smaller size and the 

 differently colored under plumage. The dark tail coverts separate it from P. dominicensis and 

 chalijhea. It may, after all, however, be nothing more than a peculiar stage of plumage of P. 

 purprirea. 



Ampelis garrtous, Linn. p. 317. 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 CicMopsis (Turdus 

 leucogonys of Berlin Museum) is very different from Ptilogonys nitens, Sw. He proposes for 

 the latter the generic name of Phainopepla, Sclater. 



Myiadestes townsendii, Cab., p. 321. — Mr. Sclater is decided as to the difference of M. 

 ohscurus. 



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. 



Harporhynchus crissalis, Henry, p. 351. — This name was erroneously printed in the 

 Proceedings of the Philadelphia Academy as T. dorsalis. The page was afterwards cancelled 

 aad reprinted. 



A second specimen has been collected at Fort Yuma by Lieutenant Ives's party. 



Troglodytes hyemaus, Vieill., p. 369. — Fort Tejon. J. Xantus de Vesey. 



Certhia 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. 



