464 Zoological Society : — 



tectricibns nigris alba terminatis : cauda brevi, colore nigro- 

 cinerea, rectricum macula subapicali nigra, ipsarmn autem api- 

 cibus albidis : rostro cornea, pedibus nigris. 

 ? . Olivascenti-brunnea, subtus clarior, capite subcinereo gutture 



albicantiore : tectricum alarium apicibus colore dilutioribus. 

 Hub. In Brasilia Orientali prope urbem Bahia {Sw.). 

 Mus. Brit, et P. L. S. 



Obs. Species ab auctoribus cum F. axillari et affinibns confusa, 

 sed crassitie minore, cauda breviore, colore corporis cinereo unicolore 

 et plaga gutturali ovali bene defiuita facile dignoscenda. 



7. FoRMicivoRA Hauxwelli. 



Phimbea, subtus jiaulo dilutior, mento albescentiore : alls nigris, 

 tectricibus omnibus albo terminatis, duas lineas albas formanti- 

 bus ; secundariis dorso proximis extus cauda quoque tectrici- 

 bus et rectricibus ipsis omnibus macula terminali alba prceditis : 

 uropygii plumis laxis, elnngatis : ca%ida brevissima : rostro 

 nigricanti'plumbeo, pediljusfuscis. 



Long, tota 37, alse 2-1, caudse 9. 



Ilab. In Peruv. Orientali {Haiixwell). 



Mus. Brit. 



8. FORMICIVORA CINERASCENS. 



Formicivora ccerulescensl, Sclater, P. Z. S. lSr)4, p. 112 (nee 

 Vieill.). 



Pallide cinerascens fere unicolor, subtus dilutior; interscapula- 

 rium basibus albis : alis nigricanti-brunneis cinereo limbatis ; 

 tectricum apicibus albo guttulatis : cauda nigricante, rectricibus 

 omnibus albo terminatis : rostro et pedibus nigris. 



Long, tota 6*0, alae 2*4, caudae 2'2. 



Hab. In Peruv. Orientali, Chamicurros (Hauxwell) et in ripis fl. 

 Napo. 



Mus. Brit. 



Obs. Similis F. carulescenti ex Brasilia sed rostro fortiore et lon- 

 giore, cauda breviore et sequaliore, colore corporis inferioris dilutiore 

 et campteriis nou albis distinguenda. 



I formerlv referred this bird to Vieillot's Fortn. ccerulescens, of 

 which Mcnetries has given a figure in his ' Monograph of the INIyio- 

 therinse,' pi. 6. But a comparison of specimens of both sjiecies, 

 which are now in the British ^Museum, has convinced me that these 

 two birds, though much resembling each other in plumage, are essen- 

 tially distinct, and I have given above the characters by which they 

 may be easily separated. 



The example from Chamicurros, which was part of Mr. Ilaux- 

 well's fine collection, is not quite mature, and shows brownish colour- 

 ing beneath and upon the wings. Like F. ccerulescens, this bird has 

 only ten rectrices. 



9. Herpsilochmtjs pectoualis. 



Cinereus, dorsi medii pluynis albo mixtis ; pileo nigrn : /route. 



