AMERICAN WATER BIRDS. 109 
Egialitis microrhynchus Ridgway. N. se. Winter plumage 
similar to that of Æ. semipalmatus, but the cheeks white up to 
the eye, the white of the forehead less distinctly defined, grading 
insensibly into the gray posteriorly, and anteriorly reaching to the 
bill. Two outer tail feathers white, with a blackish transverse 
spot across the inner web. Much more slender than Æ. semipal- 
matus, and the bill of entirely different form, being short and 
exceedingly attenuated. Wing, 4°35; tail, 2°50; culmen, "50 ; 
depth of bill, -10; tarsus, 1°00; middle toe, °65. Type, No. 
39,523, Nat. Mus., San Francisco, Cal.; E. F. Lorquin. 
Agialitis melodus, var. circumcinctus Ridgway. Breeding 
plumage similar to var. melodus, but the black pectoral band 
complete across the jugulum, instead of being interrupted in the 
middle portion. Wing, 4°60; tail, 2°30; culmen, 50; tarsus, 
‘85; middle toe, °55. Type, No. 9,035, ¢ ad., Nat. Mus., Loup 
Fork of the Platte, July 8; Dr. F. V. Hayden. Length, 64; 
extent, 14}. Habitat. Plains between the Missouri River and 
Rocky Mountains. 
The restricted var. melodus is found only in the Atlantic States. 
Aigialitis Wilsonius, var. rufinucha Ridgway. Similar in color 
to var. Wilsonianus, but the tints much darker; sub-orbital 
region dusky, instead of whitish; occiput of the male deeply 
rufous: frontal white band narrower than the black one bebind it. 
Wing, 4°50; tail, 2-25; culmen, ‘80; tarsus, 1:20; middle toe, 
‘70. Type, No. 30,319, 3, April, 1863, and 26,853, 9, Dec. 20, 
1861, Spanishtown, Jamaica; W. T. March. Habitat. Jamaica. 
Egialitis cantianus Lath., var. nivosus Cassin. (Ægialitis can- 
tianus Coues, Key, p. 245.) ‘This bird is distinguishable from 
the European form by the lores being destitute of a black stripe, 
‘instead of having a quite conspicuous one. 
<Egialitis montanus Towns. (Ægialitis Asiaticus var. montanus 
Coues, Key, p. 245.) This species proves to be very distinct from 
an that of Asia, to to which Dr. Coues referred it on the authority of 
Bentsionss our species having no pectoral black belt. 
ialitis hiaticu’a Linn., var. semipalmatus Bonap. The Amer- 
i ican bird differs from the European merely in lacking the white 
dhl peal mpar in narrower paren band, and in its slightly 
