( 352 ) 



b. N. flaxicollis centralis Helltu. 



Hab. Western Brazil : Hnmaytha, Rio Madeira (Hoffmanus); Engenho do 

 Gama, Rio Guapore, Mattogrosso (Natterer). N.E. Bolivia: Tilotilo (Buckley). 

 c? ad. Head, mantle, etc., deep velvety black; middle of the upper back, 



ramp, throat and < .-rissum bright lemon-yellow ; rest of under-jiarts white, 

 foreueck handed with blackish. Bill strong and rather longer than in .X. f. 

 flavicollis. 



(M.s-. As stated above, an adult male from Tilotilo differs from the type by 

 having the yellow portions of the plumage of a deeper, more golden yellow tint. 

 A young male from Mattogrosso, in the garb of the female, apparently belongs to 

 this form. 



Material. Winy. Tail. Bill. 



1. S ad., Hnmaytha, Rio Madeira. Type of the sub- 



Bpecies 72 55 14 mm. 



2. <? ad., Tilotilo, N. Bolivia (Buckley coll., Brit. Mus.) 73! 56 damaged. 



3. $ jtiv., Engenho do Gama, Mattogrosso (Natterer, 



Vienna Mus.) 70 57 13i mm. 



c. N . Jtavicollh melanoxantha (Lcht.). 

 Sylvia melanoxantha Lichtensteiu, Verz. Dubl. Berliner .!/»*. p. 34 (1823. — Bahia). 



Hab. Bahia, Eastern Brazil. 



$ ad. Head, mantle, etc., brownish black, as in N. f. Jlamcollis, from which it 

 differs in its considerably larger size, stronger bill and decidedly paler, more lemon- 

 yellow rump, throat and crissum. The foreneek is crossed by numerous blackish 

 transverse hands, as in N.f.Jlavicollis ; the yellow of the rump sometimes extended 

 to the middle of the upper hack, as in N.f. insignia. 



Fifteen cJc? ad. from Bahia measure: wing 72 — 78; tail 57 — 61; bill 

 13J — 14J mm. 



Five ? ? from Bahia measure : wing 65| — 68; tail 52 — 55; bill 13 mm. 



(I. ,\. Jlamcollis insignis Scl. 



Nemosia insignis Sclater, P.Z.S. 1856. p. llu ("South Brazil.'' — Tbe type is a skin of the well- 

 known 7?/o-make). 



Hab. South-east Brazil, vicinity of Rio de Janeiro : Cabo Frio (Wied), 

 Sapitiba (Natterer). 



S ad. Exactly like N. f. mcluiio.r<iiitliii } but with only a few blackish cross- 

 hands on the sides of the foreneek, and the middle of the abdomen faintly tinged 

 with pale yellowish. The yellow of (he rump is always extended far up to the 

 middle of the mantle. 



Obs. This form is perhaps not properly separable from the foregoing one, 

 since such specimens as described above may occasionally also he found in Bahia 

 collections. I am, however, unwilling to unite the two forms until their identity 

 is unquestionably proved. 



