(PEARLY-BELLIED TYRANT.)
+Todirostrum margaritaceiventer+, _d'Orb. Voy., Ois._ p. 316
(Corrientes). +Euscarthmus margaritaceiventris+, _Scl. et Salv.
Nomencl._ p. 45; _Salvin, Ibis_, 1880, p. 357 (Tucuman). +Triccus
margaritiventris+, _Burm. La-Plata Reise_, ii. p. 456 (Paraná).
_Description._--Above olive-green, wings and tail blackish edged
with olive-green; whole head above, including sides and back of
neck, dark cinereous; beneath pearly white, passing into pale
cinereous on the sides; under wing-coverts pale yellowish, flanks
tinged with olivaceous; bill hazel; feet red: whole length 4·5
inches, wing 2·1, tail 1·9.
_Hab._ Paraguay, Northern La Plata, Bolivia, S. Peru, and S.E. Brazil.
This species, discovered by d'Orbigny in Corrientes, was also met with
near Paraná by Prof. Burmeister, and by Durnford in Tucuman.