Mr. P. L. Sclater on the Neotro^jical Pipits. 359 



retained the name, although subsequent to D^Orbigny's, so as 

 to avoid the confusion of this species with Anthus rufescens 

 of Temminck. 



2. Anthus chii. 



El chii, Azara, Apunt. ii. p. 6, no. cxlvi. 



Anthus chii, Vieill. N. D. xxvi. p. 490, et E. M. p. 326 (?) ; 

 D'Orb. Voy. Ois. p. 225 (?) ; Darwin, Zool. Beagle, iii. p. 85 (?) ; 

 Licht. Doubl. p. 37 (certe). 



Anthus rvfus, Pelz. Orn. Bras. p. 69. 



Anthus turdinus, Merrem, Ersch u. Grub. Enc. iv. p. 290 

 (ex Azara). 



It is of course quite impossible to say positively what the 

 " Chii " of Azara, and consequently the Anthus chii of 

 Vieillot, may have been. All we can decide from Azara's 

 description is that the " Chii '' (thus designated by him from 

 its note when it descends to the ground from the air) is a second 

 species of Paraguayan viw/Aw^, smaller than the ^'Correndera ■'•'*. 

 By many authors A. chii has been considered to be the same as 

 the next species. But the specimen which I received some 

 years ago, in exchange from the Berlin Museum, under this 

 name, and which is consequently, at all events, the A. chiioi 

 Lichtenstein, is not identical with the little A. rufus, but is 

 decidedly larger and distinct. 



Anthus chii, then, if this be its correct name, is a bird much 

 resembling A, borjotensis, but decidedly smaller in size. The 

 under surface is nearly uniform pale fulvous, paler on the 

 throat and belly, but not passing into white or yellowish white 

 on the latter part as in ^. rufus. 



Besides the specimen received from Berlin, as above men- 

 tioned, which Avas collected by Sello in Southern Brazil or 

 Uruguay, I have seen but two examples of this species, both 

 bearing Natterer's number 463. Of one of them in my own 

 collection the exact locality is not marked ; the other, which 

 Hr. V. Pelzeln has kindly lent me, is from Curytiba. 



This is consequently the "Anthus rufus, Gmel.,''^ of Pel- 

 zeln, but not the ^. riifus commonly so called. Natterer met 



* Length 4f, instead of o| Spanish inches. 



