842 MESSRS. SCLATER AND SALVIN [ Dec. 6, 
ture albicante, subalaribus flavidis ; rostro dilatato, corneo, pedi- 
bus obscuris : long. tota 4, ale 2, caude \°9. 
Hab. Western Ecuador, Pallatanga and Babahoyo (fraser) ; 
Venezuela, Lake of Valencia (Goering). 
Mus. P.L.S. 
We base this species upon two skins obtained by Fraser in Ecua- 
dor, which have hitherto stood in Scelater’s collection under a MS. 
name. The single specimen, above referred to, obtained by Mr. 
Goering nearly agrees with these, and belongs, we have little doubt, 
to the same species. 
The bill is rather flatter and broader at the base than in other spe- 
cies of the genus Tyranniscus, the wings rather shorter, and the tail 
somewhat longer. The margins of the wing-coverts, instead of being 
distinctly defined as in 7. vilisstemus and its two allies T. parvus and 
T. improbus, are not nearly so bright and conspicuous. The second, 
third, fourth, and fifth primaries are nearly equal and longest. 
The three species above described increase the number of the 
members of this obscure genus to nine, which may be arranged as 
follows :— 
Clavis generis Tyrannisei. 
a. tectricibus alarum nigris, albo terminatis. 
‘regione auriculari olivacea: pileo nigro ............... 1. nigricapillus, 
i regione auriculari nigra: pileo cinereo ................-- 2. cinereiceps. 
. tectricibus alarum fuscis, flavo distincte marginatis. 
a', pileo dorso concolori: fronte aurea.................04+4 3. chrysops. 
é'. pileo cinereo: fronte albida. 
a’. gutture albo aut grisescente. 
major: pectore grisescente ...............-+ 4. vilissimus. 
major: pectore flavidescente ............... 5. improbus. 
minor: pectore albicante.................00+ 6. parvus. 
b". gutture flavido perfuso. 
{ major: mandibula albicante ............... 7. leucogonys. 
| minor: mandibula nigra..........e0.. cee 8. gracilipes. 
¢. tectricibus alarum fuscis, olivaceo obsolete marginatis ... 9. gréseiceps. 
The synonymy and localities of these nine species are as follows :— 
(i) TyRANNISCUS NIGRICAPILLUS. 
Tyrannulus nigricapillus, Lafr. Rey. Zool. 1845, p. 341; Sclater, 
P. Z.S. 1860, p. 93. 
Tyranniscus nigricapillus, Cab. et Hein. Mus. Hein. ii. p. 57 ; 
Sel. Cat. Am. B. p. 216. 
Hab. Ecuador, Puellaro (Fraser); Bogota (Mus. P. L.S.). 
(2) Tyranniscus cinereicers. (Plate LIII. fig. 2.) 
Tyrannulus cinereiceps, Sclater, P. Z. 8. 1860, p. 69. 
Tyranniscus cinereiceps, Sel. Cat. Am. B. p. 216. 
Hiab. Pallatanga, Eeuador (Fraser) ; Bogota (P. L. 8.). 
(3) TyRANNISCUS CHRYSOPS. 
Tyrannulus chrysops, Sclater, P. Z. 8.1858, p. 458, 1859, p. 144, 
et 1860, p. 93. 
