from British Guiana. 427 



304. Cercomacra tyrannina. 



Pyriglena tyrannina, Scl. P. Z. S. 1855, pp. 90, 147, pi. 98. 

 Cercomacra tyrannina, Scl. P. Z. S. 1858, p. 245. 

 Bartica Grove, Camacusa, Roraima (3500 ft.). 



305. Heterocnemis n^evia. 



Sitta 7i(svia, Gm. Syst. Nat. i. p. 442. 

 Heterocnemis navia, Scl. P. Z. S. 1858, p. 247. 

 Holocnemis lineata (Gm.), Cab, in Schomb. Guiana, iii. 

 p. 685. 

 Camacusa. 



306. Heterocnemis leucostigma. 



Percnostola leucostigma, Pelz. Orn. Bras. pp. 86, 160. 



Heterocnemis simplex, Scl. P. Z. S. 1868, p. 573. 



Bartica Grove, Camacusa, Merume Mountains. 



Count H. V. Berlepsch tells mo that he has compared some 

 of Whitely^s specimens (undoubtedly H. simplex, Scl.) with 

 the types of P. leucostigma, Pelz., and finds they belong to 

 the same species. The latter name has priority. 



307. Heterocnemis saturata, sp. n. 



H. leucostigmati affinis, sed omnino obscurior, corpore subtus 

 quam dorsum vix dilutiore : rostro et pedibus nigri- 

 cantibus. ? subtus quoque pauilo obscurior. 



Boraima (3500 ft.). 



I think this bird must be separated from H. leucostigma 

 (vel simplex) . The under surface of the male is very much 

 darker, instead of being pale ash-colour, and the feet and bill 

 are also blacker. 



We have only two specimens, one of each sex, from Mr. 

 Whitely^s Boraima collection, where perhaps it replaces the 

 more lowland paler form. 



308. Myrmeciza cinnamomea. 



Turdus cinnamomeus, Gm. Syst. Nat. i. p. 825. 

 Myrmonax cinnamomeus, Cab. in Schomb. Guiana, iii. 

 p. 684. 



Myrmeciza cinnamomea, Scl. P. Z. S. 1858, p. 249. 

 Bartica Grove, Camacusa. 



