( 369 ) 



72. Dendrocincla merula (Leht.). 



Cf. Nov. Zool. xii. 1005. p. 281. 



Dendrocincla merula Pelzeln, I.e. p. 42 (Borba, Sal to Theotonio). 



No. 1020. ? vix ad., Hnmaytha, 30. vii. 06. "Iris and feet grey, bill 

 black, below yellowish." — Wing 105 ; tail 89 ; bill 26 mm. 



In coloration of the plumage practically identical with an immature male 

 from Igarape-Assu, Par;!. 



73. Cymbilanius lineatus lineatus (Leach). 



Cf. supra, p. 60. 



Cymbilanius lineatus Pelzeln, I.e. p. 74 (Borba). 



Nos. 1010, 1074, 1023. $S ad., ?, Humaytha, 28, 31. vii. 11. viii. 06. 



" Iris red, feet and bill black." 



No. 1314. ? ad., Paraizo, 23. x. 06. " Iris red, feet and bill dark grey." 

 Nos. 1323, 1335, 1330, 1340. 6S ad., ? , 3 juv., Borba, 13, 14, 16. xi. 00. 



"Iris red, feet plumbeous, bill black." 



74. Thamnophilus major borbae Pelz. 



[Thamnophilus major Vieillot, Nouv. Diet. iii. p. 313 (1810.— ex Azara : Paraguay).] 

 Thamnophilus borbae Pelzeln, Zur Ornith. Bras. ii. p. 140 (1868. — Borba). 



Nos. 939, 971, 979, 1036. J <5 ad. and imni., Humaytha, 17, 21, 23. vii. 

 2. viii. 06. " Iris red, feet grey or plumbeous, bill black."— Wing 97, 95, 90, 91 ; 

 tail 80, 77, 72 ; bill 27—28J mm. 



Nos. 940, 955. ? ? Hnmaytha, 12, 19. vii. 06. " Iris red, feet pale plumbeous, 

 bill black."— Wing 90, 91 ; tail 74, 70; bill 26 mm. 



No. 1342. ? ad., Borba, 16. xi. 06. "Iris red." Wing 92; tail 72; bill 

 26 mm. 



These specimens are practically idenlical with the types collected by Natterer. 

 The Si differ from those of T. m. melanurus Gould, of Peru and Eastern Ecuador, 

 by having the two outer tail-feathers narrowly tipped with white, and the 

 females may be distinguished by the rather lighter ferruginous brown of the 

 upper parts, and by having the under tail-coverts white, tinged with pale 

 cinnamon ou their ajiical portion. In the ? ? of T. m. melanurus the under 

 tail-coverts are uniform bright cinuamomeous brown. 



For the characters and range of the geographical races of the T. major 

 group, cf. my revision of Spix' types, pp. 654-5. 



75. Thamnophilus polionotus Pelz. 



Thamnophilus polionotus Pelzeln, Zur Ornith. Bras. ii. p. 147 (1868. — Marabitanas and Barcellos, 

 Rio Negro) ; cf. Hellm., Nov. Zool. xiii. 1906. p. 338. 



No. 1125. <$ ad., slightly moulting, Humaytha, 20. viii. 06. "Iris light 

 brown, feet bluish black, bill black." — Wing 73 ; tail 60i ; bill 19 mm. 



This specimen differs from an adult male, collected by Mr. Andre 1 on the 

 Caura River, by its stronger bill, much lighter schistaceons nnderparts, and in 

 having the axillaries and under wing-coverts broadly tipped with white (instead 

 of uniform dark slate-colour). By its generally paler coloration it approaches 

 T. juruanus Ihering, from the Rio Jnrua, which species, however, has the median 



