& PALMIPEDES. ; 413 
mains so ‘during the summer—Enl. 970; the feet and beak are 
more orlessred. It has been called, from its note, the Laugh- 
— emg Gull.Q) , ; 
, Lar. tridactylus, and Lar. rissa, Gm.; La M. 2 trois doigts, 
“Briss. VI, xvi, 1, and xvii, 2, is also very stati to the preced- 
ing species, but may be distinguished by its very short and im- 
perfect thumb. When young it is more or less spotted with 
black or brown, Enl. 387. 
‘ ‘Lesrtris, Illig.(2)—Srercorarius, Briss.—Lazpes, Buff. 
These birds have very properly been separated from the Common 
Gulls. Their membranous nostrils, larger than those of the latter, 
open nearer to the point and edge of the beak; their tail is pointed. 
They pursue the small Gulls with singular ferocity to rob them of 
ther, food, and, as it is said, to devour their excrement. Hence their 
name. 
Lar. parasiticus, Gm.; Labbe a longue queue, Enl. 762; Edw. 
148) (The Arctic Gull.) A deep brown above, white beneath; 
the two middle quills of the tail are double the length of the 
others. Itis very rare in France. When young it is all brown, 
and is then the Zar. crepidatus, Gm.; Enl. 991, or better, Edw. 
149.(3) * ig, | 
The arctic regions produce a species the size of a Goéland, 
which is brown, with the base of the wing-quills white, Lar. ca- 
taractes, Gm., Brit. Zool. pl. L., 6; and another the size of a 
Mouette, brown above, white underneath, with a brown collar 
on the breast, the Zestris pomarinus, Tem.(4) 
Sterna, Lin.(5 ) 
The Terns, or Sea-Swallows, derive this latter appellation “from 
their excessively long and pointed wings and from their ae tail, 
(1) Add Lar. atricilla, Pall. Nov. Com. Petr., XV, xxii, 2; Catesb., I, 89; Wils. 
IX, Ixxiv, 4, by the name of ridibundus;—Lar. leucopierus;—L. cirrhocephalus, 
Vieill. Gal. 289, or poliscephalus, Licht.;—L. leucophithalmus, Licht. Col. 366;—L. 
Sabini, Leach;—L. minutus, Falk. Voy. Tl, xxiv;—L. melanurus, T. Col. 459, 
and Tiles, Voy. de Krusenst., pl. lvii. 
(2) Anspss, thief, the name of these birds among the Swedish fishermen. Vieil- 
lot has changed these names to STERcoreEvs. 
(3) This is clearly a mistake. The Z. crepidatus, Brehm. is identical with the L. 
Buffonii, Boie, Enl. 762. Am. Ed. 
(4) I cannot affirm the identity of the Lestris catarractes, Freycin., 38, and of 
the Stercoreus pomarinus, Vieill. Gal. 288, with the above species. 
(5) Stern, or Tern, is their English name, latinized as aboye by Turner, and ad- 
~ mitted by Gesner. 
