LITTLE GUILLEMOT. 305 
Aca auie, Linn. Syst. Nat. vol.i. p. 211.—Lath. Ind. Ornith. vol. ii. p. 795- 
Lintie Aux, Atca ate, Wils. Amer. Ornith. vol. ix. p. 94, pl. 74, fig. 5. 
Uria axxe, Ch. Bonaparte, Synopsis of Birds of United States, p. 425. 
Lirtite Guittemot, Uria ature, Richards. and Swains. Faun. Bor.-Amer. vol. ii. 
p- 479- 
Lirtte Aux, or Sra Dove, Nuttall, Manual, vol. ii. p. 531. 
Adult Male in summer. Plate CCCXXXIX. 
Bill shorter than the head, stout, straightish, subpentagonal at the 
base, compressed towards the end. Upper mandible with the dorsal 
line convexo-declinate, the ridge convex, the sides sloping, the edges 
sharp and overlapping, the tip rather obtuse. Nasal depression short 
and broad; nostrils basal, oblong, with a horny operculum. Lowér 
mandible with the angle long and wide, the dorsal outline very short, 
ascending, and straight, the sides convex, toward the end ascending 
and flattened, the edges thin and inclinate, the tip acute, with a sinus 
behind. 
Body full and compact ; neck short and thick ; head large, ovate. 
Feet short, rather stout ; tibia bare for two-twelfths of an inch ; tarsus 
very short, compressed, covered anteriorly with oblique scutella, be- 
hind with angular scales; hind toe wanting; anterior toes connected 
by reticulated webs, the inner much shorter than the outer, which is 
almost as long as the middle; the scutella numerous. Claws rather 
small, moderately arched, compressed, rather acute, that of the middle 
toe having its inner edge considerably expanded. 
Plumage dense, blended, glossy. Wings of moderate length, nar- 
row, pointed ; primaries pointed, the first longest, the rest rapidly gra- 
duated; secondaries rounded. Tail very short, slightly rounded, of 
twelve feathers. 
Bill black. Iris dark hazel. Feet pale flesh-coloured ; webs dusky ; 
claws black. Inside of mouth light yellow. ‘The head, upper part of 
neck, and all the upper surface, glossy bluish-black. A small spot on 
the upper eyelid, another on the lower, several longitudinal streaks on 
the scapulars, and a bar along the tips of the secondary quills, white. 
The lower parts white ; the feathers on the sides under the wings have 
the outer webs white, the inner dusky ; lower wing-coverts blackish- 
grey. 
Length to end of tail 74 inches, to end of claws 72, to end of wings 
67, to carpal joint 27; extent of wings 141; wing from flexure 47; bill 
VOL. Iv. U 
