GIALITIS. | 175 
6. Culmen equal to middle toe, with claw. (Subgenus Ochthodromus RutcuxEn- 
BACH.) . 
Adult male: Forehead, superciliary stripe, and lower parts white; 
upper parts brownish gray; fore-part of crown, streak across lores 
(sometimes wanting), and band across chest, black. Adult female: 
Similar to the male, but black replaced by brownish gray, usually 
more or less tinged with ochraceous or light rusty. Young: Similar 
to adult female, but feathers of upper parts margined terminally 
with paler. Downy young: Crown and occiput light grayish buff, 
irregularly marbled with black; back and rump similar but more 
grayish, the mottling coarser and less distinct; arm-wing light buff, 
mottled with dusky; hand-wing entirely pure white; forehead, 
superciliary region, sides of head, collar round hind-neck, and lower 
parts white; a post-ocular black streak. Length about 7.50-7.90, 
wing 4.50, culmen .80, tarsus 1.25, middle toe .75. 
ce. Nape and sides of occiput only slightly tinged with ochraceous. 
Female with lores chiefly or entirely white, and band across chest 
usually grayish, tinged more or less with ochraceous. Hggs 1.38 
X 1.02, dull light buffy, very irregularly speckled and zigzagged 
with black or dark brown and purplish gray. -Hab. Atlantic and 
Gulf coasts, north to Long Island (casually to Nova Scotia) ; 
both coasts of Mexico, north to Cape St. Lucas in winter. 
280. A. wilsonia (OrD). Wilson’s Plover. 
c’. Nape and sides of occiput very deeply suffused with ochraceous 
or rusty. Female with lores chiefly or wholly brownish gray, and 
band across chest usually ochraceous or light rusty. Hab. West 
Indies and northern Atlantic coast of South America, to Bahia. 
A. wilsonia rufinucha Ripew. Rufous-naped Plover.! 
6%. Culmen much shorter than middle toe, with claw. 
c. Tarsus twice as long as bill, measured from anterior point of loral 
feathering ; no band across chest. (Subgenus Podasocys Covuzs.) 
Summer adult (sexes alike): Upper parts light grayish brown, 
sometimes tinged with buff or ochraceous; lower parts dull 
white, more or less shaded with pale buffy grayish across 
chest (more or less suffused with buff or ochraceous in spring) ; 
forehead and superciliary stripe purer white; fore-part of 
crown, and streak across lores, black. Winter plumage : Similar 
to summer dress, but black markings of head wanting, and 
plumage more strongly tinged with buff. Young: Similar to 
winter plumage, but whole side of head and neck, and chest, 
deep creamy buff, and all the feathers of upper parts distinctly 
bordered with light buff. Downy young: Above brownish buff, 
1 Agialitis wilsonius var. rufinuchus Ripew., Am. Nat. viii. Feb, 1874, 109. ? Charadrius crassirostris 
Sprx, Av. Bras. ii. 1825, 77, pl. 94. (Qf. Pxuz., Orn. Bras, 1870, 297.) 
