826 U. S, P. R. R, EXP. AND SURVEYS—ZOOLOGY—GENERAL REPORT. 
These birds abound in the North Atlantic ocean, also in the large bays and straits; they are 
constant attendants upon the whalers, and when the process of cutting up a whale commences 
they assemble in immense numbers, and are so greedy and fearless, at such times, as to approach 
within a few yards of the men engaged in the work. 
List of specimens. 
Locality. 
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Whence obtained. Original No. 
NortheAt antiCiesms see eee sees sine ole eee | GaeorcoeNrlawrenCe ss seis cone cae seteeise siciniec ine 1014 
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PROCELLARIA PACIFICA, Audubon. 
The Pacific Fulmar. 
Procellaria pacifica, Avp. Orn, Biog. V, 1839, 331.—In. Birds Am. VII, 1844, 208. 
Fulmarus glacialis, var. C. pacifica, Bon. Consp. IT, 1855, 187. 
Sp. Cu.—Adult. Back and wings light grayish blue ; the feathers largely terminating with brownish gray ; primaries and 
coverts blackish brown tinged with gray ; tail brownish gray, white at the base ; head, neck, and under plumage, pure white ; 
bill, tarsi and feet, yellow. 
Length, 18 inches; wing, 12? ; tail, 43; bill, 13; tarsus, 143. 
Young of a uniform brownish gray ; a dark spot before the eye ; primaries brownish black ; bill and legs yellow. 
H«b.—Pacific coast of North America. 
The type specimens are now in the cabinet of Prof. Baird, by whom they have been transmitted 
to me for examination. 
Differs but little in form and size from the Atlantic bird, but the bill is rather smaller, with 
the unguis narrower and much weaker ; the nasal case differs in having its ridge distinctly 
carinate, and its upper outline straight. Bonaparte considers it as merely a variety of the 
P. glacialis. 
List of specimens. 
Catal. No. | Locality. Whence obtained. Collected by— "| Wings. 
2750 | Paciic,#s-s-.ce2oe 2 seseeecee eae 2B. Baird: leone eons Jord) ATGnbOn === ees 12. 50 
2751 pee BS h Seen RAB Ode ASB SeneA ldeesac OO ee anaScoRSoseSoso55¢|baese0 do. Sees ses eacomee 12. 25 
Thalassoica, Reich. 
PROCELLARIA TENUIROSTRIS, Audubon. 
The Slender-billed Fulmar. 
Procellaria tenuirostris, Aup. Orn. Biog. V, 1839, 333.—Is. Birds Amer. VII, 1844, 210. 
Thalassoica glucialoides, var. b. tenuirostris, Bon. Consp. II, 1855, 192. 
Sr. Cu.— Adult. Back and wings clear grayish blue ; tail of the same color, but rather lighter; primaries brownish black on 
phe outer webs and on the inner at the end, remainder of inner webs white ; secondaries dark bluish gray on the outer web and 
ture white on the inner; front, top, and sides of the head, neck in front, and under plumage, white ; sides under the wing 
