BIRDS—CTERNINAE—STERNA REGIA. 
859 
Bill long and ratlier strong, black ; mantle deep black ; under plumage white ; tail very 
deeply forked ; legs and feet black. S. fuliginosa. 
Bill slender, coral red, black near the end, tip yellow ; mantle light grayish blue ; 
beneath pearl gray ; tail deeply forked ; the outer web of the lateral feather blackish 
gray ; legs and feet coral red... S. ivilsoni. 
Bill slender, deep carmine ; mantle light grayish blue ; under plumage bluish gray ; tail 
very deeply forked ; legs and feet crimson. S. macrura. 
Bill rather slender, orange yellow at base, black near the point, which is pale yellow ; 
mantle bluish gray ; below white ; tail deeply forked ; the outer web of exterior 
feather white ; legs and feet scarlet. S. forsteri. 
Bill slender, brownish black, orange at base ; mantle pale bluish gray ; under plumage 
white, with a roseate tinge; tail very deeply forked; legs and feet vermilion. 
S. paradisea. 
Bill slender, carmine ; mantle bluish gray ; under surface white ; tail deeply forked ; 
legs and feet orange. .....S. pilcei. 
Bill small and slender, pale orange yellow ; mantle bluish gray ; below white ; tail 
forked ; legs and feet pale orange red. S. frenata. 
STERNA ARANEA, Wilson. 
Tile Marsli Torsi. 
Sterna aranea, Wils. Am. Orn. VIII, 1814, 143 ; pi. lxxii.—B onap. Syn. 1828, No. 285. 
Sterna anglica, Nutt. Man. II, 1834, 269. — Aud. Orn. Biog. V, 1839, 127. —Ib. Birds Am. VII, 1844, 81 ; 
pi. ccccxxx. 
Sp. Ch. — Adult. Upper part of the head, occiput and sides of the head upon a line with the lower eyelid, black ; back and 
wings light bluish gray ; primaries hoary on the outer webs and ashy gray on the inner, becoming lighter towards the base ; tail 
same color as the back, but paler and with the outer feather nearly white ; a line at the base of the upper mandible, neck in 
front and entire under plumage, pure white ; bill deep black ; iris brown ; legs and feet black. 
Length, 13J inches ; wings in extent, 34, from flexure 10|; tail, 4 ; bill, If ; tarsus, 1. 
Hah .— Coast of the United States as far north as Connecticut. 
Specimen in my cabinet. 
■ STERNA CASPIA, Pallas. 
Tlie Caspian Tern. 
Sterna caspia, Pall. Nov. Com. Petr. XIV, 582 .—Lawr. Ann. Lyc. N. Y. V, 1851, 37. 
Sp. Ch. — Adult. Forehead, crown, sides of the head, and occiput black, glossed with green ; this color extends below the 
eye, under which is a narrow white line ; back and wings light bluish ash ; the six outer primaries dark slate grey on their inner 
webs ; quill shafts strong and white ; tail and its upper coverts grayish white ; neck and entire under plumage pure white ; bill 
and inside of mouth bright vermiliQn ; legs and feet black. Bill very stout. Tail not deeply forked. 
In the young the back, wing coverts, and tail are mottled and barred with blackish brown. 
Length, 211 inches ; extent of wings, 51 ; from flexture, 16| ; bill from base, 2-J ; depth at base, | ; tarsus, 1| ; middle toe 
and claw, 1J ; tail, 6. 
Hab. —Coast of New Jersey northward. 
Specimens of adult and young are in my cabinet, obtained on the south shore of Long Island. 
STERNA REGIA, G a m b e 1. 
Tlic Royal Tern. 
Sterna cay ana, Bonap. Syn. 1828, No. 284 .—Nutt. Man. II, 1834,268 .—Aud. Orn. Biog. lit, 1835,505; Y, 
639.— Ib . Birds Am. VII, 1844, 76 ; pi. ccccxxix. 
Sterna regia, Gamb . Proc. Ac. Nat. Sc. Phil. IV, 1848, 128. 
Thallasseus regius, Gamb. Jour. Ac. Nat. Sc. Phil. 1, 1849, 228. 
