AVES. 
197 
Motacilla Boarula . —The Gray Wagtail. 
Plate XLII. fig. 1. 
Bluish-gray above, rump bright sulphur-yellow; a white 
streak over the eyes; throat black ; under parts bright chrome- 
yellow ; wings grayish-black, coverts tipped with white; tail 
until the middle feathers black, and the outer ones white. 
Seven inches long. Inhabits Europe. 
Motacilla flava. — The Yellow Wagtail. 
Plate XLVI. fig. 7. 
Upper parts pale yellow ; wing-coverts blackish brown, mar¬ 
gined and tipped with yellowish white; quills black brown, 
margined with pale yellow; middle tail-feathers black, margined 
with pale yellow; the two outer ones white; legs and feet 
dusky ; hallux produced and slightly curved. 
Genus 35.—E NIC U R U S. — Temminck. 
Generic Character .—Bill elongated, dilated at the base, abrupt¬ 
ly acuminated at the tip, which is attenuated and curved-, nos¬ 
trils situated in a groove, with an elevated membrane; tarsi 
slender ; hallux strong and short; tail forked. 
Enicurus coronatus. — The White-Crowned Enicurus. 
Plate XLV. fig. 1. 
Black; crown white; a crescent-shaped undulated white 
stripe passes over the upper wing-coverts, and ends at the 
bastard; wings black; rump, venter, and crissum, white; tail 
much forked; feathers of unequal length, each with three bars 
of white, and tipped with the same; outer feathers wholly 
white ; hides hazel; legs ochreous yellow; claw of the hallux 
large and hooked ; bill dusky gray. Ten inches and a half long. 
Inhabits Java. 
Genus 36.—ANTHUS.— Bechstein. 
Generic Character. —Bill straight, cylindrical, slender, subu¬ 
late near the point; edges inflected towards the centre ; base 
of upper mandible carinated, slightly bent down, and notched at 
the tip; nostrils basal, lateral, and ovate ; partly hid by an ar¬ 
cuated membrane ; tarsus usually longer than the middle toe, to 
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