( 362 ) 



No. 1130. ? juv., Humaytha, 21. viii. 06. "Iris brown, feet grey-bine, bill 

 black." 



These birds differ from our Para series (S. a. wallacii) by having (he crown 

 decidedly rufescent brown, and the throat as well as the foreueck more strongly 

 suffnsed with brownish. The back is either pale dull greenish, as in S. ". wallacii, 

 or bright brownish green, as in several specimens of S. a. amazonum from the 

 Orinoco (Mnuduapo and Nericagna). 



49. Schiffornis major Pes Murs. 



Schiffornis major (Bonaparte MS.) Dea Murs, in Castelnau's Voyage, Oiseaux, p. 66. tab. 18. fig. 2 



( 1 856.*— Sarayacu, Eastern Peru). 

 Heteropelma rufum Pelzeln, Zur Ornith. Email, ii. p. 185 (1868— Rio Amajaii [Rio Negro] and 



Borba [Rio Madeira] ). 



Nos. 1340, 14o."). i S ad., Borba, 17. xi., In. xii. 06. "Iris brownish grey, 

 feet dark blnish grey, bill black."— Wing 821, 85; tail 02, 04; bill 14). mm. 



The examination of a good series of specimens in the Mnsenms of Vienna, 

 Paris, London and Tring, including the types of S. major and II. rufum, shows 

 beyond doubt that these two supposed species are based on individual variation 

 of a single form. Of three sexed ? ? from Fonteboa, Rio Solimoes, Brazil, 

 collected by the Castelnau Expedition — in the Paris Museum— one has the top 

 of the head cinereous mixed with rnfons, the former colour predominating, and 

 the sides of the head cinereous ; in the second example the front and sides of 

 the head are rufons, while the feathers on the vertex and occiput are partly rnfons 

 and partly cinereous ; in the third specimen the forehead and sides of the head 

 are dull greyish brown, the rest of the crown rufous. On an island in the 

 Bio Amajaii Natterer shot a rufous-headed <?, and another 6 with the head partly 

 rufous and partly grey, out of the same flock! Moreover, the two adult $& 

 from Borba, sent by Mr. Hoffmanns, aud two SS from Samiria, N. Peru, in 

 the British Museum, differ in no way from each other, the whole head being 

 ferruginous except a small amount of greyish round the eye. There is no 

 difference in size between the two supposed species. 



50. Heterocercus linteatus (Strickl.). 



Elaenia livteata Strickland, Contrib. Ornith. 1850. p. 121. tab. fig. sin. (part.: ^— "from the 



upper branches of the Amazon River "). 

 Heterocercus linteatus Pelzeln, Zur Ornith. Bras. ii. 1868. p. 125 (Borba). 



Nos. 1142, 1123. rJcJ ad., Humaytha, 20, 23. viii. 00. " Iris brown, feet ami 

 bill black."— Wing 87 ; tail 52, 53 ; bill 121, 13 mm. 



No. 1223. 3 jr., Humaytha, 20. viii. 00. "Iris brown."— Wing 84), ; tail 

 52; bill 13 mm. 



No. 1152. ? ad., Humaytha, 24. viii. OG. " Iris brown."— Wing 84 ; tail 51 ; 

 bill 13 mm. 



This extremely rare species is only known with certainty from the Rio 

 Madeira, where Natterer obtained three specimens near Borba. The adult male 

 in the British Museum, formerly in Or. Sclater's collection, was received from 

 Bates without any further commeut than " Upper Amazons." The exact locality 

 of the type, now in the Museum of the Academy of Natural Science in Philadelphia, 



• Cf. Woodwarl & Sherborn, Ann. Mag. Kat. flirt. (7). viii. 1901, p, 164. 



