FULIGULXNJE. CRYMQNESSA. 185 
female, having the upper parts dull brown, the lower brown- 
ish-white, transversely undulated with light brown. 
Male, 17, 26, 7f, 1*> Hh iV. Female, 15, 24. 
Of this species, which is common in many parts of North 
America, and of Eastern Europe and Northern Asia, a few 
individuals have been obtained in Britain. Its habits are 
similar to those of the Golden-Eyed Garrot. 
Harlequin Duck. 
Anas histrionica and minuta, Linn. Syst. Nat. i. 204.-— 
Anas histrionica, Lath. Ind. Ornith. ii. 849. — Anas histrio- 
nica, Temni. Man. d’ Ornith. ii. 878. — Clangula histrionica, 
Harlequin Garrot, MacGillivray, Brit. Birds, v. 
GENUS CXXXII. CBYMONESSA. ICE-DUCK. 
Only one species of this genus is known to me. It dif- 
fers from Clangula chiefly in having the bill shorter, and 
the tail longer. The body is full and depressed ; the neck 
rather short ; the head moderate, oblong, compressed, 
rounded above. Bill much shorter than the head, of the 
same height and breadth at the base, broad, toward the end 
narrowed ; upper mandible with the frontal angles obsolete, 
the dorsal line sloping, the ridge broad at the base, the un- 
guis large, roundish, convex, decurved, the laminse project- 
ing considerably beyond the margin ; lower mandible with 
the intercrural space long and narrow, the outer laminae pro- 
minent, the unguis broadly elliptical, little convex. Tongue 
fleshy, thick, medially grooved, papillate at the base, late- 
rally ciliated, with the tip thin and rounded. (Esophagus 
rather wide ; stomach roundish, very muscular, with rugous 
epithelium, having the grinding surfaces roundish ; intes- 
tine of moderate length and width ; coeca rather long ; rec- 
tum very short. Trachea gradually narrowed, at the lower 
part expanded, having six rings extremely narrow before, 
with a transversely oblong tympanum, membranous in front. 
Nostrils large, oblong, subbasal. Eyes rather small. Legs 
very short, placed far behind ; tarsus compressed, with an- 
terior small scutella ; hind toe very small, with a lobiform 
membrane ; outer toes equal, and about double the length 
of the tarsus ; membranes full ; claws small, slender, little 
arched. Plumage firm, blended ; the feathers oblong and 
