Proceedings of the scientific meetings of the Zoological Society of London, 1880

Page 192

156 MESSRS. SCLATER AND SALVIN ON [Mar. 2, Obs. Species affinis N. ruficipiti et N. sordidce, sed colore uniformi insignis. Mr. Buckley obtained but a single example of this Nemosia, which appears to be* a very distinct species of the section Thlypopsis. The wings are rather short, the third and fourth primaries, which are equal and longest, slightly exceeding the second and fifth. The tail is rather rounded ; the tail-feathers are slightly pointed at their extremities. Fam. TYRANNID^E. 3. PLATYRHYNCHUS SENEX, sp. nov. Brunnescenti-olivaceus, uropygii plumis et tectricum majorum mar­ginibus rufescentibus; pileo nigricante, crista mediali semicelata alba; subtus saturate fiavicanti-fulvus, gula alba ; subalaribus ventre concoloribus ; remigibus et rectricibus nigris brunnescenti-olivaceo extus limbatis ; rostro superiore nigro, inferiore fiavido; pedibus albis: long, tota 4, alee 2*5, caudce 1*3, rostri a rictu 0*7, tarsi 0*6. Hab. Sarayacu, Ecuador (Buckley). Mus. S.-G. Obs. Species Pl. rostrato proxima et ejusdem formae, sed crassitie minore et pileo nigricante necnon ventre saturatiore distinguenda. 4. SERPHOPHAGA ALBOGRISEA, sp. nov. Supra grisea, alis et cauda nigricantibus; macula celata verticali, tectricibus alarum et secundariis extus latissime albis ; loris corpore subtus albis, hypochondriis vix griseo tinctis ; rostro pedibus plumbeis : long, tota 4*2, alee 2*6, caudce 2*3, tarsi 0*75. Hab. Sarayacu, Ecuador (Buckley). Mus. S.-G. Obs. S. cinereee affinis, sed pileo dorso concolori et alis latissime albo marginatis distinguenda. The beak of the single specimen in Mr. Buckley's collection is unfortunately defective, but enough is left to show that the species belongs to the genus Serphophaga, its nearest ally being the bird with which we have compared it. 5. SYRISTES ALBOCINEREUS, sp. nov. Tyrannus, sp. ?, Scl. & Salv. P. Z. S. 1865, p. 189. Sirystes albogriseus, Scl. & Salv. P.Z.S. 1873, p. 280 (nee Lawrence). Supra griseus ; capitis lateribus alis et cauda fusco-nigricantibus, secundariis extus albo limbatis ; capite summo nigerrimo ; dorso postico, uropygio et corpore toto subtus albis; rostro et pedibus nigris: long, tota 7, alee 3*9, caudce 3*3, rostri a rutu 1*1, tarsi 0*9. Hab. Amazon, sup. (Bartlett, Whitely); Sarayacu, Ecuador (Buckley); Columbia (Mus. P.L.S.). Mus. S.-G.et P.L.S.