322 LARIDEH, TERNS.—GEN. 289-92. 
the upper surface, white underneath ; feet orange. Young; cap too defective 
to show the crescent; bill dark, much of the under mandible pale; feet 
obscured. Very small, only 8-9; wing 6-63; tail 2-33; bill 1-1}; tarsus 3%. 
U. S. and somewhat northward, chiefly coastwise, abundant. Appears to be 
perfectly distinct from the European bird. S. minuta W11s., vii, 80, pl. 
60, f. 2; Aup., vii, 119, pl. 439. S. swperciliaris Virmuor, Dict. Deterv. 
1819, xxxii, 176. S. argentea Maxtm., Voy. i, 67; Nurr., ii, 280. S. 
antillarum and melanorhyncha Lesson, 1847; Couns, J. c. 552. WS. frenata 
Gams., Proc. Phila. Acad. 1848, 128; Lawr. in Bp., 864. SUPERCILIARIS. 
Trudeaws Tern. Bill orange, crossed by a blackish band, the tip yellow. 
Entire plumage pearly grayish-blue, little if any paler below than above 
but whitening on the head; a black band through the eye; no black cap. 
Size and proportions precisely as in /forsteri (excepting shorter tail?). 
South and Central America, rare or only casual on the Atlantic Coast 
(New Jersey and Long Island, Trudeau). Avp., vii, 105, pl. 4385; Lawr. 
in Bos, 861; Couns, 1. co425 8. ee ELROD HAUI 
ttt No occipital crest. Feet and bill black ; colors darker 
than in any of the foregoing. Size medium. (Haliplanda.) 
Aleutian Tern. Top of the head black, with a 
white frontal crescent; back very dark ash, or dull 
slaty-blue; under parts similar, paler; tail white; 
chin and sides of head, edge and lining of wings, and shafts of primaries, 
white. Length about 14; wing 103; tail 74, forked nearly 4; bill 14; 
tarsus .55; middle toe and claw 14. Alaska; one specimen known. A 
remarkable species, entirely different from any other known to me; it stands 
exactly between Sterna proper and Haliplana, and appears related to 
S. lunata Pears (Cass., U. S. Expl. Exp. 1858, 382). Barrp, Trans. 
Chicaco’ Acad’, 1,7°186959240 plaola ds ae tee :> CAE UBICAS 
Sooty Tern. Brownish-black, continuous from Head £6 tail; under parts, 
outer web of outer tail feather, and a frontal crescent, white. The frontal 
lunule is short and wide, its horns not reaching beyond the eyes; the black 
loral stripe does not quite reach the bill. Very young birds are fuliginous, 
speckled with white. Length 15-17; wing 11-12; tail 6-8; bill 13-2; 
tarsus %. Atlantic and Gulf Coast, southerly; breeds by thousands in 
Florida, with the noddies. Wuts., viii, 145, pl. 72, f. 7; Norr., ii, 284; 
AUD evil. 00); plat32)- AW Rin BD. cole. momar . . FULIGINOSA. 
Bridled Tern. Slaty-gray, bl: enae on crown aa quills, the color of 
the head separated from that of the back by an ashy-gray interval on the 
cervix ; white frontal crescent very narrow, with long horns reaching beyond 
the eyes, involving the upper eyelid and forming a superciliary line ; black 
loral stripe reaching the bill; under parts, and most of 2-3 outer tail 
feathers, white; smaller than the last, and easily distinguished. Central 
America, and various warmer parts of the world; I introduced it to our 
fauna upon the strength of a specimen from Audubon’s collection, now in 
Mr. Lawrence’s cabinet, labelled “Florida.” 8. anosthetus Scorouti (fide 
Fic. 204. Aleutian Tern. 
POs me, 
