Zoological Society* 201 



wing, and shorter Regulus>like bill. Above uniform olive-brown ; 

 laterally pale slaty and below pure white ; cap clear brown -red or 

 chestnut. Dwells near the snows, like the last-named. Length, 

 A\ inches; bill, \\ tail, 2yV ; wing, l|f; tarse, |; central toe and 

 nail, |- ; hind, -^-^, 



Alhed to the last two species are some more Cachar birds of very 

 similar manners and plumage, distinguished by a compressed bill, 

 which is raised between the keeled nares, as in our Stachyris, and 

 by the inner toe and nail of their strong ambulant feet being longer 

 than the outer toe and nail. Some have the tarse smooth and the 

 tail more or less scansorial, that is, cuneate in form and rather rigid 

 or worn; these I call Trihura. The others have the tarse scutellate 

 and rather longer, and the tail broad and fan- shaped, and not at all 

 rigid or worn ; these I style Horornis, though they hardly deserve 

 subgeneric separation. 



Genus Tribura, mihi. 



Bill to gape equal to head or less, straight, cylindric, compressed ; 

 at base higher than broad, and having the ridge raised and keeled 

 between the oval apert nares ; tip of upper mandible scarcely inclined, 

 but distinctly notched ; rictus smooth ; wings short and feeble, but 

 not much or equally gradated ; first two quills conspicuously gra- 

 dated, three next subequal and longest ; tail more or less elongated, 

 and gradated throughout, rather cuneate than fan- shaped, and some- 

 what rigid or worn ; tarse stout, smooth, longer than the mid toe and 

 nail; toes and nails simple, compressed, inner fore with its nail ex- 

 ceeding the outer fore, central elongate, hind least ; nails acute. 



Type, T. luteoventris, mihi. 



Tribura luteoventris, mihi. — Above olive-brown, with a luteous 

 lustre ; below lutescent laterally and albescent centrally ; a pale line 

 over the eye ; bill dusky horn ; legs carneous. Length, 5| inches ; 

 bill, -j^ ; tail, 2| ; wing, 2^ ; tarse, ^ ; central toe and nail, -^ ; 

 hind, ^. Inhabits the Cachar, among brushwood ; manners un- 

 known. 



Genus Horornis, mihi. 



General structure of Tribura, but the rictus more or less armed ; 

 the tarse strongly scaled ; the wings more gradated, having the fifth 

 or sixth longest, and the tail broad, fan-shaped, and not worn or rigid. 

 Inhabits the northern hills ; manners unknown. 



Types, for tipes and flaviventris. 



H. fortipes, mihi. — Above olive-brown, dark and pure ; below and 

 the brow yellowish ; bill yellow horn ; legs pure fleshy. Length, 4-| 

 inches ; bill, J ; tail, 2 ; wing, 2-jlg^ ; tarse, \^ ; central toe and nail, 

 H;hind,^. 



H. flaviventris, mihi. — Very similar to the last, but a smaller bird, 

 with shorter tarse ; above olive-brown ; below and the brow greenish 

 yellow and pale ; bill and legs fleshy. Length, 4| inches ; bill, \ ; 

 tail. If ; wing, 2 ; tarse, \^ ; central toe and nail, i^; hind. -^, 



H. ? fuligiventer , mihi. — Aberrant; probably a Tribura, having the 

 wing of that form, but the tail not worn or rigid, and hence perhaps 



