BIRDS — LIOTRICHIDAE — MIMU8 POLTGLOTTUS. 



345 



the breast, eoraewhat as in Lanius. The purity of white in the outer tail feather, too, is often 

 impaired by bUitchings of brown. 



In a Considerable series of specimens before me, T find two from California (SloO, 81G5) whicli 

 dilVer from tlie rest in having a considerably longer tail, measuring ijj inches. The graduation 

 is much greater, the lateral feathers being 1.20 inches shorter than the middle, instead of about 

 .75 ; the ends of all the feathers distinctly visible from below. The coloration of the tail 

 differs a little in having the third black, with a dull white tip, and not the elongated spot in 

 the end, running up sometimes as far as the middle of the feather. There is less white in the 

 two bands on the wing coverts ; the bill and feet are larger. I cannot satisfy myself, however, 

 that they are distinct, in the absence of a sufficient series of good specimens from the east, and 

 therefore merely call attention to the facts as staled. It may be that they are only a more 

 northern and larger race than the rest before me. It is probably this variety that Vigors had 

 in view when describing Orpheus leucopterus from the west coast of America, (Zool. Beecliey, 

 1839, 18,) although this has the wing 5.75 inches long, instead of 4.50. Should further 

 researches substantiate a specific distinction from both the polyglottus and Vigors' bird, tlie 

 name of JUiwus canadatus would be very appropriate, in view of the lengthened tail. 



Young birds from California, of the long-tailed variety, have the feathers of the breast and 

 the sides of body conspicuously marked terminally with a round dusky spot. There are also 

 faint dusky markings on the sides of the throat. 



List, of specimens. 



Catol. 



No. 



I 



8167 

 6516 

 3867 

 6515 

 8161 

 5064 

 5063 

 4961 

 6062 

 4017 

 8163 

 8166 

 8160 

 8164 



4561 

 8165 

 8158 

 8159? 



Sex& 

 age. 



Locality. 



When collected. 



Mar. 25, 1842 

 Mar. 17, 1857 

 Sept.—, 1853 



Washington, D. C 



Indian Key, Fla 



Prairie Mer Rouge, La. 



Indian Kty, Fla \ Mar. 20, 1857 



Western Texas ' 



Texas 



Pecos river 



Ft. Chadboume, Tex. 



Indianola 



Brownsville, Texas -. 



Eagle pass, Texas 



do 



May 22, 1855 



Feb. 21, 1855 



1852. 



Whence obtained. 



Orig. Collected by- 

 No. 



S. F. Baird 



G. Wurdemann 



J. Fairie 



(i. Wurdemann 



Capt. Pope 



do 



, do 



Dr. Swift 



Capt. Pope .. 



Lt. Couch 



Major Emory . 

 do 



W. M. Baird . 



25 

 2 



A. Schott. 

 do.. 



Length. 



Stretch 



of wings. 



9.00 



13.00 



Wing. 



4.00 



Fort Thorn 



Bill Williams' fork .. 



Ft. Yuma, Cal 



Gila river 



Fosa creek 



Los Angeles valley. 

 FortTejon, Cal 



Feb. 9, 1854 



Dec — , 1854 



Dr. T. C. Henry. 

 Lt. Whipple ... 



Major Emory 



do 



83 



26 



Kennerly&Moll- 



hauecn 



A. Schott , 



9.60 



13.50 



.do. 



Lt. Williamson. 

 do 



J. X. de Vesey. 



Dr. Hecrmann , 

 do 



44 b 



