130 



than the typical members of the genus. The bill also is shorter, 

 broader, and more flattened, and furnished wįth many basai bristles. 

 Togetber with Lafresnaye's Grallaria nana, they seem to form a sub- 

 ordinate group pointing tovrards Conopophaga. 



3. Hypocnemis melanopogon. 



<? . Cinereus, subtus dilutior, ventre medio albicante ; gula nigra : 



alis brunnescenti-nigris, tectricibiis omnibus albo marginatis : 



cauda nigra rectricibus omnibus anguste albo terminatis : rostro 



nigro, pedibus fiiscis. 



? aut S junr. Supra mari adulto similis, mibtus gutture et pectore 



cinereo variegatis, gastrceo albo, lateraliter cinerascentiore. 

 Long. totą 4'5, alse 2'5, caudse 1*5. 

 Hab. In Peruvia Orientali, Chamicurros {Hauxwelt). 

 Mus. Brit. et P. L. S. 



This bird nearly resembles H. pcecilonota and H. myiotherina in 

 style of colouring, but the bill is longer and more slender, and more 

 likę that of some of the species of Myrmeciza. From H. pcecilonota 

 it is easily distinguished by the want of the white edgings of the 

 interscapularies, from H. myiotherina by the restraint of the black 

 colour to the throat, the want of the superciliary mark, and by the 

 white termination of the rectrices. 



I have two specimens of this species in my owu eoUection, and 

 there is one in the British Museum, which formed part of Haux- 

 weirs collection from Chamicurros. 



4. FORMICIVORA MĖLYNA. 



Fuliginoso-niger, subtus intensior ; lateribus plumosis citm tectri- 

 cibus subalaribus albis : alarum tectricibits et caudce rectrici- 

 b%is albo terminatis : rostro et pedibus nigris. 

 Long. totą 4*0, alse 3"1, caudse 2-5. 

 Hab. New Grenada, Bogota. 

 Mus. P. L. S. 



Obs. Similis F. azillari, sed colore corporis supra nigri nec plum- 

 bei dignoscenda. 



5. FoRMICIVORA UROSTICTA. (PI. CXXVI. fig. 1.) 



Cinerea subtus dilutior et magis albescens : plaga gulari elongata 

 nigra : alis nigricanti-cinereis extus cinereo strictissime lim- 

 batis, tectricibus autem tdgris, albo terminatis : cauda nigra, 

 rectricibus omnibus albo late terminatis ; rectricis una utrin- 

 qiie extimee tertia fere parte apicali alba, koc colore apud alias 



•^rectrices gradatim decrescente : rostro nigro, pedibus f uscis. 



Long. totą 3-5, alse 2-0, caudse I '2. 



Hab. In Brasilia Orientali. 



Mus. Brit. et P. L. S, 



Obs. A Formicivora axillari et aliis affinibns colore subtus dilu- 

 tiore, gula nigra magis restricta et prsesertim rectricum apicibus late 

 albis distinguenda. 



