778 SYSTEiMA TIC SYNOPSIS. —LON GIPENNES. — TUBINARES. 



Atlantic, swarming at some of its favorite breeding places, especially St. Kilda, wide ranging at 

 other seasons ; S. to U. S. in winter. Nest on crags over the sea ; egg single, white, with 

 rough brittle shell, resembling a hen's egg in size and shape ; young covered with whitish 

 down ; fed in the nest by regurgitation of an oily fluid. The fulmars are very greedy of fatty 

 substances, and constantly attend the whale-fishery to feed upon the blubber. 



815. F. g, paci'ficus. (Lat. pacificus, pacific.) Pacific Fulmar. Averaging darker than No. 

 S14, the mantle bluish -cinereous rather than pale pearly-blue ; the bill rather weaker and 

 less strongly hooked. N. Pacific, in vast numbers. Changes of plumage, habits, etc., the 

 same as those of the common species. 



816. F. g. rod'gersi, (To Comm. John Rodgers, U. S. N.) Rodgers' Fulmar. The mantle 

 dark, as in pacificus, but much restricted, most of the wing-coverts and inner quills being 

 white ; primaries mostly white on inner webs, their shafts yellow. Size and shape as before. 

 N. Pacific, swarming on some of the rocky islands in Behring's sea. Nest on the crags ; 

 single egg white, nearly equal-ended, rough with innumerable pits and points, 2.90 X 1-90; 

 chick hatches like a pufi'-ball of white down. 



322. PRIOCEL'LA. (Prion -\- Procella.) Gull Fulmars. Character of Fulmarus proper; 

 l)ill little shorter than head or tarsus, about f the middle toe and claw, compressed, higher 

 than broad at base, not very robust, sides regularly tapering to rather narrow tip ; grooves 

 not so well marked as usual ; hook moderate ; commissure a little curved ; outlines of inferior 

 mandibular rami and gonys both slightly concave ; nasal tube i-| the culmen, depressed at 

 base, high and narrow at end. Feet, wings, and tail as in Fulmarus. Two species ; ours 

 curiously resembling a gull. 



817. P. tenuiros'tris. (Lat. tenuirostris, slender-billed. Fig. 524.) Slender-billed Fulmar. 

 Adult (J 9 '■ Plumage white, with clear pearly-blue mantle, and black primaries, just like a 



Fto. 524. — Slender-billed Fulmar, nat. size. (From Elliot.) 

 gull ; the mantle beginning faintly on the nape, continuing over whole back, rump, tail, wing- 

 coverts and inner quills ; edge of the wing slaty-gray ; primaries black, their shafts yellowish- 

 white at base, their inner webs pearly-white to near the ends ; white of first primary extending 

 to within two inches of the tip, further on the rest successively, reaching the end on the 6th ; 

 outer webs of secondaries slaty-black, inner white •, a small dusky spot before eye ; a faint 

 pearly shade on sides of breast and body. Bill and feet (dry) yeUow ; nasal tube and h<jok 

 obscured with bluish horn-color. Length about 18.50: extent about 36.00; wing 13.00; 

 tiiil 5.25; tarsus 2.00;- middle toe and claw 2.60; outer do. 2.70; inner do. 2.25; chord of 



