Plate II 



LIPAUGUS SUBALAKIS. 



(YELLOW-SIDED MOUBNER). 



Lipaugus sub alar is 



Sclater, P.Z.S. 1861, p. 210. 



L. viridi-olivaceus, dorso imo, ventre et cauda cinerascentioribus, Cauda fere tota cinerea ; crisso albicante ; pilei 

 plumis interne nigro maculatis : gutturis et pectoris plumarum scapis conspicue flavicanti-albis : plumis axillaribus 

 et subalaribus leete citrino-flavis : alis fusco-nigricantibus, extus dorso concoloribus : rostro et pedibus nigris : long, 

 tota 10-5, alse 5*1, caudse 4. 2, tarsi 09. 



Hob. in Eep. ^Equatoriali, ad ripas fl. Napo. 



Since Mr. Sclater described this curious bird from the single example in the British 

 Museum he has obtained a second specimen of it, which has allowed us to add some additional 

 notes to his former description, and from which the present figure is taken. 



The correct place of this species in the genus Lipaugus appears to be near Lipaugus 

 unirufus and L. cineraceus, and not along with L. hypopyrrhus and its allies, as Mr. Sclater 

 formerly supposed. The two external digits are certainly further united than in L. cineraceus 

 and L. unirufus, but not so far as in the case of L. hypopyrrhus and its neighbours. In the last 

 mentioned section also the sexes appear to be differently clothed, and there is a brightly coloured 

 tuft on each side of the breast, which does not occur in the present form. 



The wings of L. subalaris are rather longer and more pointed than is usual in this genus. 

 The first primary is of the same length as the seventh, and about six tenths of an inch shorter 

 than the second, which equals the fourth, while the third is longest. 



There is no other known species liable to be confounded with the present bird, which is 

 recognizable at first sight by its bright sulphur-yellow under-wing-coverts. It would appear to 

 be rare in collections, the two examples above alluded to, which are both from the forest-region 

 of the Rio Napo, being, so far as we know, the only specimens of this bird in Europe. 



Octobek, 1866. 



[3] 



