LARID^ — THE GULLS AND TERNS — STERNA. 



277 



America, known only from the Gulf and South Atlantic coasts, north, casually, to Penn- 

 sylvania. 

 14. S. anaestheta. Above, sooty plumbeous, lii^htenin}? gradually on the upper back into 

 ashy, tills gradually fading into whiti'h on the nape, the black of the pileuni being 

 strongly contrasted. Wing, about lO.oO inclies. Jlab Sea-coasts throughout the warmer 

 parts of the world ; casual on the coast of Florida. 



Sterna anglica. 



THE OTTIIrBIILED TERV. 



Sterna anglica, Mo};tac.ve, Orn. Diot. Suppl. 1813. — Nutt. Man. IL 1834, 269. — Am. Om. 



Biog. V. 1839, 127, pi. 410 ; Synop. 1839, 316; B. Am. VII. 1844, 81, pi. 430. — Coi'Es, Key, 



1872, 319 ; Chi-ck List, 1873, no. 560 ; 2J cil. 1882, no. 792. — Ridow. Norn. N. Am. B. 1881, 



no. 679. 

 Gclochclidmi anglica, Bonap. Comp. List, 1838, 61. — CouEs, Pr. Ac. Nat. Sci. Pliilad. 1862, 536 



(critical). 

 Sterna (Gelochelidon) anglica, CouES, B. N. W. 1874, 664. 

 Sterna aranea, WiLs. Am. Oni. VIII. 1814, 143, pi. 72, f. 6. — Lawu. in BairJ's B. N. Am. 1858, 



859. — Baird, Cat. N. Am. B. 1859, no. 681. 

 Slcma risoria, Breum, Lclirb. 1823, 683 ; Beitr. III. 650. 



? Sterna macrotarsa, GouLn, Proc. Zool. Sec. Lond. pt. v. 1837, 26 ; B. Austr. Suppl., pi. 

 Sterna affinis, Horsf. (fide Blas.) 

 Gelochelidon pahudris, Macgilu Man. II. 1842, 237. 

 Gelochelidon ballhica, agraria, 'nieridionalis, Bueiim, Viig. Deutschl. 1831, 772, 773, 774. 



IIab, Nearly cosmopolitan, but in North America confined to the Eastern Province, and rare 

 away from the coast ; the greater part of tropical America, south to Brazil ; both coasts of Central 

 America ; Bermuda 1 



Sp. Char. Adult, in summer : Pileum and nape deep black ; upper parts, including the rump, 

 u]iper tail-coverts, and tail, delicate i)ale pearl-gray, tlie i)rimaries more hoary, and usually darker ; 

 inner webs of primaries ivsh-gray, with a broad white space from the edge more than half way to 

 the shaft, but not extending to the ends of the (luills. Rest of the plumage jjure white. Bill 

 wholly deep black ; interior of mouth flesh-color ; iris dark brown ; legs and feet dark walnut- 

 brown, the soles pale pinkish brown; claws black. Adult, in winter : Similar, l)ut whole head 

 and neck white, the nape tinged with grayish, tiio auricuhirs darker grayish, as is also a crescentic 

 space immediately in front of the eyes. Young, first jduinagc: Above, pale pearl-blue, the feathers 



more or less tipped with light clay-color, this sometimes almost uniform over the back and scap- 

 idiu-s, where the feathers are bluish only beneath the surface ; a blackish crescentic spot inmiedi- 

 atcly in front of the eye, and a dusky grayisii suffusion on the auriculars, forming a more or less 

 distinct postocular stripe. Lower part* entiivly pure white. Rump, upper tail-coverts, tail, and 



