202 ZOOLOGY— BIRDS. 



iug, when ("olded, nearly to tlie end of tlie tail; tail eniar};inate ; tarsus no longer tlian 

 the uiiddlc toe and claw. Hallux little if any longer than its claw ; bill little shorter 

 than tarsus (averaging little over half the tarsus iu /V/u/zoiw/), attenuate, iu)tably 

 depressed, yet very little widened at base; culmen rather concave than convex in 

 most of its length, the under outline almost perfectly straight from extreme, base to 

 tip; nasal i'ossa; very large, with a highly devcloi>ed nasal scale; rictal vibrissic few 

 and short ; jtlumage without streaks. 



"The form of the bill is (juitc peculiar, lacking entirely the jjariiie asjiect of that 

 of Ikmlroivu ; it somewhat resembles that of Seiurus. The relationships of P. oliracea 

 a])i)ear to be with the Jamaican Sylcicola eoa of Gossc. In habits, it somewhat 

 resembles the Certliii(l(v-\—{CoVES, JNISS). 



While ill the tield, my attention being attracted to ccitain peculiarities of this 

 bird, both structural and as shown iu its habits, as comjjared with the genus jMu- 

 (Iroica, which seemed to amount to generic distinctions, 1 called the attention of my 

 friend Dr. Elliott Cones to these, ami, as a result of his examination of the sjjecimens, 

 he has erected the genus as above given. 



PEUCEDUAJIUS OLIVACEUS (Giraud). 



Olivc-Iieaded Warbler. 



»%/(•/« oUracca, GlRAUD, llirds Texas, 1841, 14, pi. vii, f. li. — SoLAT., Troc. Zoiil. 



Soc, l.srw, (j(J. 

 iSi/lricolii olii-acia, Cassin, 111. Birds Texas, 1855, 2.s;$, pi. xlviii. 

 JJcndruica oUiucea, ScLAT., Proc. Zoiil. Soc, 1852, 2!)S (()axa(;a; cold region). — LI., 



Proc. Zoiil. Soc, 185!), ;{(;;} (Jalapa).—Jrf., Cat., 18(J1, .Jl, No. 1!)(>.— Bi>., Kev. 



Am. Birds, i, 18G5, 205.— Bd., Buew., & Bidci., X. A. Binls, i, 1874, 2.58.— 



Uensiiaw, Am. Sportsman, v, Feb. 20, 1875, H2S (introduced into United 



States fauna). 

 Jiliimdiiiplms oliraccus, Sc;lat., Proc Zool. Soc, 1850, 2!)1 (Cordova). 

 Sijlvia Uriiiata, DiBlS., Bui. Acad. Brux., .xiv, 1847, 104.— /</., I£ev. Zoiil., 1848, 245. 

 tii/lricvla twniata, BoN., Consp., 1850, 309. 



IlAB. — Both coasts of Mexico south into Guatemala, Arizona. 



This species was giv^en by Mr. Giraud as a bird of Texas ; but the 



quotation has been disregarded by authors under the assunij)tion that the 



locality of his specimens was, tlu'ougli mistake, erroneou.sly given. It would 



appear, however, that its occuiTence in Texas is rendered ])y no moans 



improbable, since the capture of several specimens by our jjarty during the 



past season in the mountains of Southern Arizona. During a three days' 



visit to Mount Graham, August 1 to 4, the species was not detected; though 



this can hardly be considered as negativing the probability of its occuiToiice 



here as a summer resident, since in so short a jjcriod the time Avas f;ir too 



limited to examine, even cur.'^orilv, a re^'ioii alH>niuliii<_:" at this .se;isoii in 



