ZGIALITIS. 177 
mata, but adult with black or grayish brown 
band across chest much broader.) Downy 
young: “Forehead .white; crown grayish 
brown, mottled with light stone-gray; from 
the base of the bill around the nape a black 
band passes, and is broadest on the nape; a 
broad collar round the neck and the under- 
parts pure white; back and upper parts gen- 
erally grayish stone-brown, finely mottled 
with dirty white and blackish brown.” 
(Dresser.) Length about 7.50, wing about 
5.00, culmen .50-.55, tarsus 1.00, middle toe 
60-65. Hggs 1.40 x 1.00, similar in colora- 
tion to those of . semipalmata. Hab. 
Northern portions of eastern hemisphere, 
and eastern portions of Arctic America. 
275, 4&. hiaticula (Liny.). Ring Plover. 
f’. Bill slender, entirely black; a whitish bar im- 
mediately behind black patch on fore-part of 
crown. (Otherwise much like &. hiaticula, 
but much smaller.) Length about 6.00, wing 
4.35-4.70, culmen .50-.52, tarsus 1.00-1.05, 
middle toe .55-.60. Hab. Northern portions 
of eastern hemisphere, including western 
Africa; accidental in California (?) and 
Alaska (?)......ccsseeee 276. AE. dubia (Scor.). 
Little Ring Plover. 
g’. Upper parts pale brownish gray. 
Summer adult: Forehead, lores, collar round 
hind-neck, and lower parts pure white; patch 
on fore-part of crown, and one across each 
side of chest (the two sometimes connected 
on middle of chest), black (duller or more 
grayish infemale). Winter plumage: Similar 
to summer adult, but black or dusky replaced 
by light brownish gray. Young: Similar to 
winter plumage, but feathers of upper parts 
distinctly bordered terminally with pale buff 
or whitish. Length 6.25-7.50, wing 4.50-4.80, 
culmen .45-.50, depth of bill at base .20-.22, 
tarsus .85-1.00, middle toe .55. 
i. Black patches on sides of chest wholly sepa- 
rated or very imperfectly connected. Eggs 
1.27 X .96, pale buffy rather sparingly 
speckled with black and purplish gray. 
23 
