NATATORES — PROCELLARIDiE — DIOMEDEA. 289 



(EXTRA-LIMITAL.) 



P. anglorum, Ray. (Aud. B. of A. Vol. 7, p. 214, pi. 457.) Bill very slender, much incurved 

 at the tip, 1 -6 long. Tarsus 1 -8. Tail rounded, of 12 feathers. Brownish black ; beneath white. 

 Length, 15-0. Sable Island. Coast of Maine. 



Genus Diomedea, Linnaeus. Bill longer than the head, very robust and hard, deeply seamed on each 



side, strongly hooked at the point. Lower mandible smooth : palate with serrated processes. 



Nostrils in distinct tubes on the sides of the bill. Feet stout, short. Tarsus a fourth shorter 



than the middle toe : no rudiment of hind toe or nail. 



D.fusca, Bonap. (Albatross, Aud. B. of A. Vol. 7, p. 200, pi. 454.) Uniform dusky: bill black; feet 



yellow. Ridge of the bill carinate, entering the forehead in an acute angle. Length, 34-0. 



Columbia river. 



D. nigripes. (Aud. lb. p. 198.) Sooty-brown; beneath grey: feet black. Ridge of the bill broad 



and convex. Length, 36*0. California. 

 D. chlororhyncos, Gmel. (Aud. lb. p. 196.) Bill compressed, convex above, black above, yellow 

 beneath; feet yellow; head and neck ash-grey ; beneath white. Length, 37-0. California. 



Genus Procellaria, Linnaus, Bonaparte. Bill as long as the head, stout, broad and hard ; lower 

 mandible straight, somewhat truncated at the tip : mental angle projecting. Nostrils in a single 

 tube. First quill longest. Hind toe merely a thick and obtuse nail. 



P. glacialis, Linn. (Aud. I.e. Vol. 7, p. 204, pi. 455.) White; back and wing-coverts bluish grey ; 

 bill and feet yellow. Tail conical. Summer, a dusky spot before the eye. Young, pale cine- 

 reous, varied with brown. Length, 17*0. Northern regions. Oceanic. Occasionally on the 

 coast of the United States- 



P. pacifica. (Aud. 1. c. Vol. 7, p. 208.) Head, neck and beneath white. Nasal tube straight ; its 

 ridge distinctly carinate. Length, 18* 0. Northwest coast. 



P. tenuirostris (Aud. 1. c. p. 210.) Bill more elongated and slender than the preceding; 2-0 long. 

 Color of the preceding. Length, 18*5. An. var. ? Columbia river. 



[Fauna — Part 2. J 37 



