Young. 
520 NATATORES. CATARACTES. SkuA. 
webs of the quill-feathers white; the tips and outer 
webs black. Wings, when closed, reaching upwards of 
an inch beyond the tail. 'Tail-feathers having part of 
their shafts and the basal half of their inner webs white ; 
the rest black ; and the two middle ones exceeding the 
rest about three-quarters of an inch in length, but pre- 
serving their full breadth, and rounded at the ends. As 
the bird advances in age the under parts become whiter, 
and the subulated feathers upon the head and neck make 
their appearance. 
ARCTIC SKUA. 
CATARACTES PARASITICUS, Flem. 
PLATE CI. anp CI *. 
Cataractes parasiticus, Flem. Br. Anim. 1. 138. No. 222. 
Lestris parasiticus, Temm. Man. d’Ornith. 2. 796.—Faun. Amer. Boreal. 
2. 430. No. 195.—Sabine, Mem. Birds of Greenland, 551. No. 24. 
Stercorarius Cepphus, Steph. Shaw’s Zool. 13. 211. pl. 23. 
Stercorarius longicaudus, Briss. Orn. 6. 155. 
Larus parasiticus, Linn. Syst. 1. 226. 10.—Gmel. Syst. 1. 601.—Lath. Ind. 
Orn. 2. 819. sp. 15. 
Le Labbe & longue queue, Buff: Ois. 8. 445.—Id. Pl. Enl. 962. 
Stercoraire parasite, ou Labbe, Temm. Man. d’Orn. 2. 796. 
Arctic Bird, Edward’s Glean. 148 and 149. 
Arctic Gull, Penn. Br. Zool. 2. 533. No. 245. pl. 87.—Arct. Zool. No. 459. 
—Lath. Syn. 6. 389. 10. t. 99.—Mont. Orn. Dict. and Sup.—Lewin’s 
Br. Birds, 6. pl. 207.—Bewick’s Br. Birds, ed. 1826, p. t. 232.—Flem. 
Br. Anim. 1. 138. No. 222. 
Arctic Jager, Shaw’s Zool. 13. 211. pl. 23.—Faun. Amer. Boreal. 2. 430. 
No. 195. 
Larus crepidatus, Gmel. Syst. 1. 612.—Zath. Ind. Orn. 2. 819. sp. 14. 
Lestris crepidatus, Zemm. Man. d’Orn. 1. ed. 515. 
Cataracta Cepphus, Brann. 36. No. 126.—Raii Syn. 129. 11. 
Cepphus, Dr Lyons in 'Trans. Phil. Soc. 42. 137. 
Le Labbe, ou Stercoraire, Buff: Ois. 8. 441. t. 34.Id. Pl. Enl. 991. 
Labbe & courte queue, Cuv. Reg. Anim. 1. 520. 
Black-toed Gull, Penn. Br. Zool. 2. 532. No. 224. pl. 86.—Arct. Zool. 
2. No. 460.— Lath. Syn. 6. 387. 15.—Id. Sup. 268.—Bewick’s Br. Birds. 
ed. 1826, p. t- 235.—Mont. Orn. Dict. and Sup. 
Provincrat—Teazer, Dung Hunter, Scull, Boatswain, Dung 
Bird, Faskiddar, Dirten-Allen, Scoute-Allen, Badock, Allan, 
Skui. 
