( 367 ) 

 57. Thamnophilus incertus Pelz. 



Thanuiiiphilus incerliia Pelzeln, Zur Orn. Brasil. ii. (ISfiS) p. 149 (Par,i,). 

 Dysithamnus incertus Hellmayr, Nov. Zool. xii. (1905) p. 284 (crit.) 



Four adult males, 7, 22, 25. xi., 9. xii. 05; and 1 ? ad., collected 14. xi. 05. 

 Nos. 83, 120, 176, 207, 306. Iris marked as "browu," "reddish brown," 

 " yellowish red," or " bright red." 



These specimens are in every way identical with those sent by Mons. Robert 

 from the same district. The males have the bend of the wing and the lesser upper 

 wing-coverts freckled with white. The top of the head is always slate-grey like the 

 back, and there is no trace of a white interscapular blotch. About the systematic 

 position of this species cf supi-a, p. 339. 



58. Dysithamnus mentalis mentalis (Temm.) 



ilijnthcra menlalh Temminck, PI. cul. livr. 30. talx 179. fig. 3 = ^ ad. (1823— Bresil, sc. Curytiba, 



ParanA. Type in Vienna Museum examined). 

 Dysithamnus mentalis Goeldi, Ibis 1903. p. 499 (Capim River). 



1 (? ad., 14. X. 05, and 1 ¥ ad. 24. xi. 05. Nos. 15, 197. " Iris brown." 

 They agree well with a good series of South Brazilian skins, except that in the 

 male the yellow colour on the abdomen is less extended. 



59. Pygiptila stellaris (Spix). 



Thamniiphilus stellaris Spix, .\i\ Bras. ii. (1825) p. 27. tab. xxxvi. fig. 2. desor. orig. (J (Pard). 

 Tlianinaphilus manilipennis Sclater, Ediiih. New Philos. Journ. (new ser ) i. (185.5) p. 247 (" Quixos 



in Cisandean Ecuador and Peruvian Amazons "). 

 Thamiviphilus stellaris and Pijqnptila niamlipennis Sclater, Cat. Birds Brit. Mas. xv. pp. 105, 217. 



I S vix ad. and 1 ? ad., 24. xi., 21. xii. 05. Nos. 193, 399. " Iris greyish 

 brown" {S), "brown" (?). 



They agree in every respect with sj)ecimens from the Upper Amazons and the 

 Orinoco district. The Triug Museum has lately received a pair from near Paramaribo, 

 Surinam, which does not diifer either. 



There can be scarcely any doubt that T. stellaris is the oldest name for this 

 species, although Spix's type does not any longer exist in the Munich Museum. 

 The descrijjtion and figure suit our bird very well, and the only reason for rejecting 

 the name stellaris was apparently the locality, which had been considered erroneous, 

 but which now proves to be quite correct. 



1 may mention that in the Cat. of Birds this species is described under two 

 different names, as I have satisfied myself by examining the specimens in the 

 British Museum. The two skins recorded under the head of Thamnophilus stellaris 

 are absolutely indistinguishable from those named Pygoptila maculipennis. It need 

 not be emphasised that they have nothing to do with Thamnophilus tristis Scl. & 

 Salv., which belongs to quite a different genus. 



60. Thamnomanes caesius hoflfmannsi Hellm. 



r. c. hnffmannsi Hellmayr, Bull. B. 0. C. xvi. Febr. 1906. p. 53. 



T. caesius (nee Temminck), Hellmayr, Nov. Zuul. xii. (1905) p. 285 (Igarapc-AssiS, Pari). 



2 c?(? ad. from Prata : 15, 20. xi. 0.5. Nos. 148, 158. " Iris brown." 



This interesting new form resembles T. c. caesius from Bahia in having no 

 white interscapular blotch, but agrees with T. c. qlaucus in the clear slate-grey 



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