NATURAL SCIENCES OP PHILADELPHIA. 12S 



The bill is flesh color, tinged with brown ; much darker along the culmen 

 and on the unguis ; the legs and feet are flesh eolored, with a tinge of yellow. 



This species measures from 15 to 16 inches in total length ; the wing from the 

 carpus 10-f)0 to 11*25. The tail varies somewhat in length, from nearly five 

 to quite six inches ; the graduation of the lateral feathers usually being about 

 2 inches. Bill about 1-60; height at base 35, width *50 ; length of nasal 

 tubes -25. Tarsus 1*90 middle toe and c'aw 2*35. 



This species can be confounded with no other, (except, perhaps, T. chloro- 

 rhynchus, which see ;) and there are no involved points of synonymy. 



Thielltjs chlokorhynchus Bp. ex Less. 



Puffinus chlororhynchus, Lesson, Tr. Ornith., p. 613. Pucheran, Rev. 



Zoologique, 1850. p. 633. Thiellus chlororhynchus, Bp., Consp. Av., ii. 



1866, p. 201. Procellaria chlororhynchus, Schlegel, Mon. Proc. Mus. 



Pays-Bas, 1863, p. 25. 



Habitat. '' Western Australia," Bp. Dr. Schlegel has specimens from the 



Bourbon Islands and the Cape of Good Hope. 



Almost identical with T. sphenurus in the color of the plumage ; and with 

 much the same dimensions. The main diagnostic points seem to be the fol- 

 lowing : The bill is of a greenish orange color, except along the culmen and 

 at the tip, where it is black. The bill is longer than that of sphenurus by 

 about a fourth of an inch on the average, and appears a little larger at the 

 base, though quite slender in its continuity, "While chlororhynchus is, upon 

 the whole, a larger bird than sphenurus, nevertheless the wings are abso- 

 lutely s barter (h an inch or more) on an average. The feet are slightly 

 longer and stouter. In color the present species differs slightly in being 

 rather more cinereous below ; but the difference is not well marked. 



The species not as yet a well known one, nor contained in many mussea. 



NECTRIS Bp. (emend, ex Forst.) 



Char. Generally similar to Puffinus ; colors uniformly fuliginous ; bill and 

 feet wholly or partially light colored. Bill long and slender, much hooked at 

 the tip ; nasal tubes short, broad, depressed, very obliquely truncated, the 

 septum broad, the nostrils narrowly oval. Wings reaching a little beyond 

 the tail, which varies in length, but is always more or less rounded. Feet 

 moderate ; tarsus about equal to middle toe without claw ; outer toe without 

 claw equal to middle ; tip of inner claw not reaching base of middle one. 



This genus comprises five, perhaps six, species, all agreeing in the uniform 

 fuliginous of their plumage, and in the partial or entire paleness of the bill 

 and feet. In form it hardly differs from Puffinus, and its retention as a valid 

 genus is perhaps questionable, except as a matter of convenience in a group 

 where it is of importance to distribute the numerous closely-allied species in 

 as many groups as may be at all characterizable. 



Necteis fuligunostjs, Keys, et Bias, ex Strickl. 



Puffinus fuliginosus, Strickland, Proc. Zool. Soc. Lond., 1832, p. 129. 

 Lawrence, Birds N. A., 1858, p. 803, et auct. recent. Sed nou Proc. 

 fuliginosa, Gm., Lath., quae probabiliter species Thalassidromce (cauda 

 furcata ex " Otaheite ") ; nee Banks, tab. 19, Kuhl, sp. 12, pi. x. fig. 

 6 ; quse certe Pterodroma atlantica, Gould. Quid sit Proc. fuliginosa, 

 Kuhl, p. 148, sp. 27 (ex Banks,) nescio. Nectris fuliginosa, Keys, et 

 Bias. Wirbelt. Europ., 1840, p. 

 Puffinus major foemina!) Temminck, Man. Orn., iv. 1840, p. 506. Puffi- 

 nus cinereus (foemina!), Gould, Birds Europ., pi. 445, fig. 2. 

 Habitat. More northern portions of the Atlantic Oceau ; especially numer- 

 ous off the coast of Newfoundland ; more rarely on the European coast. 



Sp. ch. Upper parts a uniform fuliginous brownish black, the primaries 

 and tail feathers of a deeper color ; under parts a much lighter fuliginous 

 1864.] 



