The eggs are of an oval shape, pointed at one end, and measure .68 by .48 of an inch. They have a white ground, marked with spots of lilac and purple and two shades of umber-brown.
Subfamily GEOTHLYPINÆ.
Section SEIUREÆ.
The diagnosis of the subfamily will be found on page 178. The Seiureæ, as there stated, have the wings pointed, and rather longer than the nearly even tail, which is unspotted. The genera differ in proportion rather than absolutely, Oporornis having longer wings and larger claws. The coloration, however, is always distinctive, as follows:—
Under part white or whitish, thickly streaked … Seiurus.
Beneath yellow, without spots … Oporornis.
Genus SEIURUS, Swainson.
Seiurus, Swainson, Zoöl. Jour. III, 1827, 171. (Sufficiently distinct from Sciurus.) (Type, Motacilla aurocapilla, L.)
Henicocichla, Gray, List of Genera, 1840.
