^« .^&A^^nn Ai^ Zoological Society i'^l^UihS . J .^ .iM 



example I have yet seen of this bird, which appears to have escaped 

 the notice of the French ornithologists. It is marked as having 

 been received from Bogota in 1843 by M. Rieffer. Its form is typi- 

 cal, but in colouring it differs from all hitherto known members of 

 the genus, though perhaps showing some resemblance to Grallaria 

 brevicauda (Bodd.) (PL Enl. 706. fig. 1), which is, however, much 

 smaller. It is of a uniform ferruginous brown above and white be- 

 low, passing into a cinereous tinge on the sides. Some brown colour 

 is mixed with the feathers on the sides of the breast. The bill is 

 black, the tarsi plumbeous ; the thighs and the under wing-coverts 

 brown. 



v>.2. Grallaria MODESTA. 



.- tiO. supra intense hi'unnescenti-olivacea, alls caudaque niyricanti- 

 brunneis olivaceo tinctis : subtus oHvacea, Jlavescenti-albido 

 jiammulata ; ventre medio jlavescenti-albido : tectricibus sub- 

 alaribus pallide castaneis : yyiandibula superiore plumbea, hujus 

 apice et tomiis et mandibula inferiorey nisi basi, albicantibus : 

 pedibus pallide brunneis. -V* i 



Long, tota 6-2, alse 3-2, caudse I'S, tarsi 1*751^ '^';^,^\^^^ 

 This is a rather uniformly-coloured species, of wtiic1i"ttie" British 

 Museum contains a single specimen. There are indications of darker 

 marginations to the feathers of the nape and back. The breast fea- 

 thers are medially yellowish-white, broadly margined with olivaceous; 



3. Cham^za MOLLISSIMA. 9iU w 

 C. supra brumieo-castanea, remigibus rectricibusque intus nigri- 



cantibus : capitis lateribus et corpore toto subtus nigris^ albo 

 dense transvittatis : uropygii plumis laxis, elongatis, densis- 

 si?ms : rostro Chamsezse marginatse simili sed minor e. 

 Long, tota 5*75, alae 3*2, caudae 2-5. 



This peculiar Ant- thrush, of which there is one specimen in the 

 British Museum, has the lower back very densely feathered, the 

 coverts reaching to within an inch of the end of the rectrices. The 

 wings are shorter than is usual in Chamceza — the 4th, .5th, 6th and 

 7th primaries being nearly equal in length, but the 5th rather the 

 longest ; the tail rather more lengthened ; the formation of the feet 

 is much the same. 



Above the colouring is of a brown chestnut, rather darker towards 

 the tail ; the sides of the head and whole under-plumage are blackish 

 barred with white, every feather having three or more transverse 

 white bars. A slight tinge of castaneous is intermixed, particularly 

 on the breast. 



4. FORMICIVORA CALLINOTA. 



F. olivacea ; pileo summo et nucha nigris : loris, capitis lateribus^ 



^ et corpore subtus ad imum pectus cinereis : abdomine pallide 



Jlamcanti-viridi : tergo Icete castaneo, pennis quibusdum nigris 



supra marginato : alls nigris, carpo et tectricum marginibus 



flavis : secundariis et rectricibus olivaceo marginatis : rostro 



