576 MESSRS. SCLATER AND SALVIN ON [MaV 23, 



76. Thamnophilus radiatus, Spix, Av. Bras. ii. p. 24, t. 35. 

 f. 2. 



Amazons. Perhaps different from the T. radiatus of Vieillot (ex 

 Azara), as pointed out by Sclater (P. Z. S. 1858, p. 218), but evi- 

 dently the bird figured by Spix. 



77. Thamnophilus palliatus, Licht. 

 Para. 



78. Dysithamnus plumbeus (Max.). 

 Amazons, examples of both sexes. 



79. Myrmotherula axillaris, Vieill. 

 Capim River, examples of both sexes. 



80. Myrmotherula brevicauda (Sw.). 

 Capim River. 



81. Myrmotherula hawxwelli, Sclater. 

 Capim River. A female of this species. 



82. FoRMicivoRA griSea (Bodd.). 



Rio Tocantins, Sept. 1848. A single female of this species. 



-f-83. Ramphoc^nus melanurus, Vieill. 

 Capim River, July 1849. 



84. Pyriglena atra (Sw.). 

 Para. 



85. Hypocnemis melanopogon, Sclater. 



Examples of both sexes of this species from Mexiana, Dec. 1848, 

 agreeing with specimens from Cayenne. 



86. Pithys albifrons (Gm.). 

 Cobati, Rio Negro. 



87. Pithys leucaspis, Sclater. 



Cobati. A specimen, marked male, wanting the concealed dorsal 

 patch, which is probably only found in the female. 



88. Phlogopsis nigromaculata (Lafr. et D'Orb.). 

 Para, May 1849. 



4 89. Formicarius crissalis. Cab. Journ, f. Orn. 1851, p. 96. 



One example, from Para (Oct. 1848), agreeing in every respect 

 with Cabanis's description. A skin in Sclater' s collection from Tri- 

 nidad (or Venezuela) is much darker below, and has the black throat 



