1919-] Ecuador, Peru, Bolivia, and Argentina. 261 



Total length 268 mm., exposed culmen 17, wing 189, 

 tail 80j tarsus 25. 



The adult female is similar to the adult male but rather 

 larger. Wing 192 mm. 



The type, which is in tiie British Museum, was collected 

 by P. O. Simons at Crucero in Peru, on the western side 

 of Lake Titicaca.. at an elevation of 5000 metres, on the 

 30th of June, 1900. 



Family Charadriid^. 



Arenaria interpres. 



Tringa interpres Linn. Syst. Nat. i. 1758, p. 148: 

 '' America Septentrionali.^' 



Strepsilas interpres Tacz. Orn. Per. iii. 1886, p. 349 : 

 Cborillos : Paraca Bay. 



Arenaria interpres Salvad. & Festa, Boll. Mus. Torino, 

 XV. 1900, No. 368, p. 42 : Ecuador. 



No. 72. Puna Island, Ecuador, 10 Nov. 1898. 



Nos. 1610, 1611. Chancey, W. Peru, 30 Dec. 1899. 

 "Iris bi'owu ; feet red ; bill black''' (P. 0. Simons). 



These three specimens are in the adult winter plumage. 



Haematopus palliatus. 



Hamatopus palliatus Temm. Man. d'Orn. ii. 1820, p. 532 : 

 Venezuela ; Tacz. Orn. Per. iii. 1886, p. 350. 



No. 1637. ? . San Lorenzo Isl., Peru, 16 Jan. 1900. 

 " Glicglic." * Iris yellow; feet flesh-colour; bill red" 

 (P. O. Simojis). 



This specimen is in the fully adult plumage. 



Oreophilus ruficollis ruflcollis. 



A nestling in down of this species from the Chuput 

 Valley, Patagonia, collected by J. Koslowsky, is cream- 

 white dotted with black, smoke-brown, and silvery-white on 

 the back, wings, and top of head, and much more sparsely 

 on tiie hind-neck and sides of the face. Under surface 

 uniform cream-colour. 



In addition to the four specimens collected by Simons 

 in Bolivia, there is, in the British ]\Iuseum, a male from 

 Islay, south-western Peru, collected by H. Whitely in 



