336 University of California Publications in Zoology L^^ol. 21 



Remarks. — This robin is known at present from the Rio Negro at 

 Roea, and from a tributary of the Rio Limay at Anecon Grande. Two 

 skins in spotted juvenal plumage when compared with typical magel- 

 lanicus of a similar age ofifer the same difference of pallid color that 

 distinguishes pembertoni in adults of the two forms. An old specimen 

 in the U. S. National Museum from the Gilliss Expedition marked 

 "Chili" may have come from Mendoza, since many of Lieutenant 

 Gilliss' birds were taken in that f)i"ovince. 



The bleached form of the Magellanic robin here described seems 

 to inhabit willow groves along streams in the more arid regions to 

 the eastward and northward of the forested section of the southern 

 Andes. True Turdus m. magellanicus is found in the more humid 

 region at Lake Nahuel Huapi, and extends from there southward 

 through the Andes to the Straits of Magellan. Hellmayr (1921, 

 p. 238) considers T. magellanicus a form of T. faicklancUi from the 

 Falkland Islands, but to me the two species seem to be sufficiently 

 different to merit their recognition as distinct species. 



Spizitornis parulus lippus subsp. nov. 



Characters. — Similar to Spizitornis parulus parulus (Kittlitz [1831, 

 p. 190]), described from Coneepcion and Valparaiso, Chile, but 

 decidedly darker, less olivaceous, on back and rump ; black of head 

 duller; breast somewhat more abundantly streaked. 



Description. — Type, U. S. National Museum, Cat. No. 116157, 

 adult (sex not indicated), collected at Mayne Harbor, Evans Island, 

 Owens Islands, Chile, lat. 51° 19' S, long. 74° 7' W (approximate), 

 February 5, 1888, by the naturalists on the U. S. Fish Commission 

 steamer "Albatross." Crov/n, sides of head, and crest black, the 

 crown streaked rather indistinctly with white; nasal tufts partly 

 white ; a white spot at upper anterior corner of eye ; back, rump, and 

 scapulars between hair brown and chaetura drab; Aving coverts and 

 alula dull black, the greater and middle coverts with indistinct lighter 

 tips of slight extent ; primaries and secondaries chaetura black ; 

 primaries edged with pale olive-buff to whitish; secondaries with 

 proximal part of outer webs black; posterior two-thirds and tip 

 bordered lightly with olive-buff; rectrices chaetura black, outer webs 

 margined lightly with pale olive-buff; throat and extreme upper breast 

 whitish, streaked finely and indistinctly with black; lower breast, 

 abdomen, and sides washed with pale yellow; center of abdomen 

 immaculate; sides and breast streaked indistinctly with blackish; 

 under tail coverts whitish, with small concealed dusky spots; under 

 wing coverts pale yellowish. Bill, tarsi, and feet black (from dried 

 skin). 



Named with reference to the peculiar coloration of the eye in 

 members of this species, where a purplish segment occupies the upper 

 third of the otherwise pale iris. 



