1867.j messrs. sclater and salvin on amazonian birds. 981 



44. Myrmelastes plumbeus. 



Recent researches have convinced us that Gould's Thamnoi)hilu% 

 hyperythrus is the female of this species. As, however, the term 

 hyperythrus is only applicable to one sex, it will be more convenient 

 to use the more recent name. A pair of this species are in the pre- 

 sent collection, procured on the same day, and with the sex of each 

 marked. 



4 55. Tyranniscus gracilipes, sp. nov. 

 Tyranniscus gracilipes, Sclater, MS. 



Olivaceusy pileo obscure cinereo : Io7-is albidis : alls nigris, secun- 



dariis et tectricibus Jlavo marginatis : cauda nigricante, oli- 



vaceo extus marginata : subtus palliJe Jlavus : rostro nigricante, 



pedibus plumbeis : long, tota 4'3, alee 2, caudce 1*9, tarsi •55. 



Hab. in Peruv. orient. Pebas (Hauxwell). 



Three specimens of this species agree with an indifferent skin in 

 Sclater's collection (No. 1317 of his 'American Catalogue'), said to 

 be from Venezuela. Two of them are somewhat shorter in the wing 

 than the described specimen, which is marked male. The nearest 

 described species seems to be T. parvus, Lawrence (Ibis, 1862, 

 p. 12), which is of about the same size, but has the throat and breast 

 white. 



65. MuSCIVORA castelnaudi. 



Onychorhynchus castelnaudi, Deville, R. Z. 1849, p. 57. 



A single specimen of this bird is in the collection, but does not 

 appear quite adult. It presents some of the distinctive characters 

 pointed out by M. Deville ; but we should prefer to see further speci- 

 mens before guaranteeing the species as distinct from M. regia. 



4128. PORZANA FASCIATA, Sp. nOV. 



Corethrura, sp., Scl. & Salv. P. Z. S. 1866, p. 200. 



Castanea: dorso et alis extus brunnescenti-olivaceis : ventre toto 

 cum hypochondriis et subalaribus nigra transfasciatis : rostro 

 nigro, pedibus rubeUis : long, tota 6*8, alee 3*8, caudce '9, 

 tarsi 1"6, rostri a rictu '0. 



Hab. Peruvia orient. Pebas et Chamicurros (Hauxwell) ; fl. Uca- 

 yali (Bartlett). 



Obs. Similis P. castanea, Cuv., sed ventre fasciato diversa. 



A single specimen of this Rail was in Mr. Bartlett's Ucayali col- 

 lection and is now in the British Museum. In the same collection 

 is a second example, obtained some years ago by Mr. Hauxwell at 

 Chamicurros. 



The species appears to be unnamed, but it is a very distinct one, 

 and belongs to the group Rujirallus of Bonaparte. We propose to 

 give a figure of it in a forthcoming number of our ' Exotic Orni- 

 thology.' 



-v-- 



