AVES TROGLODYTID^. 819 



Troglodytes musculus magellanicus Gould. 



Troglodytes magellanicus Gould, P. Z. S. 1836, p. 85. 

 Troglodytes Jiorneusis Auct. nee Lesson. 



Description. — Adult male, P. U. O. C. 7720, Rio Coy, February 10, 1896. 

 Total length, 4.30 inches; wing, 2.10; culmen, .48; tail, 1.82; tarsus, .80. 

 Above cinnamon brown, grayer on head and neck and becoming tawny 

 on rump and tail, the latter narrowly barred with black, wings like back 

 tertials and outer edge of remiges barred with black, below pale vinaceous, 

 more tawny on the flanks ; under tail coverts bright tawny ; feet pale, bill 

 horn color. 



Geographical Range. — Eastern Argentina, southern Chili and Patagonia. 



Found at numerous localities in southern Patagonia — Punta Arenas, Rio 

 Coy, Coy Inlet, Rio Chico, and Cape Fairweather. There are two spec- 

 imens in Juvenal plumage from Punta Arenas taken in December. October 

 specimens from Rio Coy are in full fresh plumage. 



Mr. Peters found it a common migrant and local summer resident in 

 northwestern Patagonia (Bull. M. C. Z. Ixv, No. 9, p. 328). 



Genus CISTOTHORUS Cabanis. 



Type. 



Cistothorus Cabanis, Mus. Hein., I, 185 1, 77 (note). 



Troglodytes stellaris. 



Cistothorus platensis hornensis (Lesson). 

 Troglodytes hornensis Lesson, Inst. 1834, p. 316 ("Sud-estCap Horn"). 

 Troglodytes eidouxi {^ondi^.) Consp. Avium, i. p. 221, 1850 (Talcahuano, 

 Chile). 

 Description. — Adult male, P. U. O. C. 7937, Rio Chico, Patagonia, 

 March 16, 1898. Total length, 4.35 inches; wing, 1.90; culmen, .43; 

 tail, 1.68; tarsus, .72. Tawny ochraceous above, feathers broadly black 

 on either side, those of the back with a terminal white streak ; wing coverts 

 and tertials tawny ochraceous spotted and banded with black, remiges dull 

 brown with pale edgings ; tail tawny ochraceous broadly banded with black ; 

 under parts whitish strongly tinged with ochraceous on the sides of breast 

 and body and on the flanks, broad whitish superciliaries, ear coverts ochra- 

 ceous streaked with black. Feet pale, bill horn color above, lower man- 

 dible paler. 



