284 
ZOOLOGY. 
Sp. Ch. —The largest species of this genus, general form short and stout, head large, bill much flattened laterally, entirely 
homy, upper mandible composed of three parts or lamina, the first of which, next to the frontal feathers, is narrow and 
covered with minute spots, the second smooth, with the apertures of the nostrils inserted at its lower edges, and with an 
elevated sub-cylindrical process on its upper edge or the culmen of the bill; third with two or three transverse curved grooves, 
and somewhat hooked at the tip; under mandible smooth. Head with two crests of elongated pendant feathers from behind 
the eyes; wings rather short, tail short, legs and feet strong, claws sharp. 
Two first parts of the bill yellowish green, terminal part and under mandible reddish yellow or orange, the under mandible 
greenish at base. Crests pale yellow; plumage around the base of the bill, including the eyes, white. All other parts of the 
plumage brownish black, darker on the head and back; legs bright orange red. 
Total length, about 15 inches; wing, 8; tail, 3 inches. 
Eab. —Western coast of America; California; accidental on the coast of Maine, (Mr. Audubon.) 
I obtained a specimen of mormon from tlie vicinity of the Straits of Fuca, which was kindly 
presented to me through George Gibbs, esq., by Captain Fowler, of the schooner R. B. Potter. 
The range of the species probably extends as far south as the Farralone islands, off San 
Francisco bay, as certain specimens there obtained were seen by me in collections in San 
Francisco.—S. 
CERORHINA MONOCERATA, (Pallas,) Cass in. 
The Homed-hilled Guillemot. 
Alca monocerata, Pallas, Zoog. Rosso-Asiat. II, 1811,362. 
Cerorhyncha occidentalis, Bonap. Ann. Lyc. N. Y. II, 1828, 428. 
Ceratorhyncha occidentalis, Bonap. Comp. List, 1838, 66.— Aud. Orn. Biog. V, 1839, 104; pi. 402. 
‘ l Cerorhina orientals, Bonap.” Brandt, Bull. Acad. St. Petersburg, 1,1837, 345. 
Cerorhina monocerata, (Cassin,) Baird & Cassin, Gen. Rep. Birds, 905. 
Sp. Ch. —Bill rather large, flattened laterally; upper mandible with an upright horny appendage at its base, the top or 
germination of which is frequently broken or worn off; angle of under mandible very distinct, and having the appearance of 
being a distinct piece; wings moderate, pointed; tail short, rounded; legs short, robust. Head and entire upper parts dark 
fuliginous; lighter and tinged with ashy on the throat and neck in front; darker and nearly black on the back and rump. A 
line of long yellowish white feathers over and behind the eye and another from the corner of the mouth. Under parts of body 
white; under wing coverts and sides ashy brown; bill dark orange; legs light colored. 
Total length, about 15 to 15£ inches; wing, 7|; tail, 2J-; bill to gape, 2 inches. 
Eab. —Northwestern and western coasts of America; northeastern Asia; Japan, (Com. Perry’s Expedition.) 
This curious bird, first described by Bonaparte from specimens said to have been brought 
from the west coast of America, is found moderately abundant on the lower part of Puget 
Sound and in the Straits of Fuca. In the summer of 1854 I obtained a couple of young 
birds from the vicinity of Port Townsend, Washington Territory. Unfortunately they were 
destroyed by rats. Protection island, near the last mentioned locality, is said to be a favorite 
breeding ground of the species, where, according to the accounts given me by Indians, they 
breed in holes dug in the steep banks, like those of the black guillemot, and are said to have 
much the same habits. The most remarkable feature of the bird is the characteristic singular 
wax-yellow protuberance on the bill. 
Dr. Ayres, of San Francisco, had in his cabinet a specimen of this species obtained by him 
from the Farralone islands.—S. 
CERORHINA SUCKLEYI, Cassin. 
Cerorhina suckleyi, (Cassin,) Baird & Cassin, Gen. Rep. Birds, p. 906. 
Sp. Ch. —Smaller than the preceding, and with the bill much more narrow laterally; plumage darker. Bill shorter than 
the head ; upper mandible curved towards the end, without distinct basal knobs ; under mandible with the angle very 
distinct; bill rather widened at the base, compressed towards the end ; wings short; tail very short. Entire upper parts 
brownish black, darker and nearly clear black on the head and back. Throat, neck, and upper part of breast dark cinereous ; 
