262 Mr. C. Chubb on Birds from [Ibis, 



September 1867 and a bird from Tarapaca; tliese are paler 

 on the mantle than tliose from farther south, the rufous 

 chestnut on the throat is deeper in colour, and the abdomen, 

 flanks^ and under tail-coverts butf instead of white. I propose, 

 therefore, that this form be separated as a subspecies under 

 the following title : — 



Oreophilus ruficoUis simonsi, subsp. nov. 



Adult male. Differs from 0. ruficoUis ruficuUis (Wagl.) 

 from Patagonia, in being olive-grey on the mantle instead 

 of olive, the rufous chestnut on throat deeper in colour, and 

 the sides of the body, lower flanks, abdomen, and under 

 tail-coverts buff instead of being for the most part white, 

 'firis brown; bill black; tarsi pink" (P. O. Simons). 



Total length 270 mm., exposed culmen 31, wing 179, 

 tail 86, tarsus 50, middle toe and claw 25. 



Adult female. Similar to the adult male but slightly 

 smaller. 



Total length 265 mm., exposed culmen 28, wing 175, 

 tail 71, tarsus 50, middle toe and claw 25. 



Habitat. Bolivia, S.W. Peru, and Tarapaca. 



Tlie description of the male is based on No. 3145, and 

 that of the female on No. 3197, both of which are in the 

 British INIuseum. 



No. 3145. S • Challapata, Bolivia, 3750 metres, 10 Oct. 

 1901. 



According to Simons this bird was — " running about on 

 the gravel pampa, eating ants.'' 



Nos. 3139, 3192 S , 3197 ? . Uyuni, Bolivia, 3660 metres, 

 Nov. 1901. "Tio-tan-cara.-" 



Ptiloscelys resplendens. 



Charadrius resplendens Tschudi, Arch, fur Naturg. 1843, 

 i. p. 388 : " Antium incola," i.e. Peiu. 



Vanellus resplendens Tacz. Orn. Per. iii. 1886, p. 336. 



Ptiloscelys resplendens Brabourue & Chubb, B. S. Amer. i. 

 1912, p. 38, no. 370. 



Nos. 1435 ? , 1438 S , 1438 a ^ . Paramo, Cajamarca, 

 Peru, 4G00 metres, 9 Nov. 1899. 



These specimens are in fully adult plumage. 



