144 PROCEEDINGS OF THE ACADEMY OP 



14. P. LEUC'OMELAS T5p. 



Proc. leucomelas, Temm. 

 Smaller than P. Kiihlii; weaker bill. Feathers of the upper parts and 

 sides of head and neck grayish white, eacli with a longitudinal shaft line of 

 brown. 



15. P. CREATOPUS Cooper, n. sp. [in epistolis.] 



With the general aspect of P. major. Bill short, nsually swollen and stout 

 at the base, nasal tubes elevated, turgid, short. Bill yellowish flesh color. 

 Nasal tubes, culmen and tip blackish. Feet light flesh color ! Upper parts 

 generally a~ in P. major, but no white on upper tail coverts ; no white at 

 bases of primaries ; the color of sides of head extending round on the throat, 

 with no dividing line ; and the under tail coverts entirely fuliginous black. 

 Bill along culmen 1-60 ; height at base -GO. 



16. P. MAJOR Fab. 



Proc. pii'frnus, Kulil, et auct. al. aliq. Europ. (sed non Linn., Gm., Lath. 



qxise P. anfjlorum, Ray ; nee Temm. quae Kuklii, Boie.) Pi'^- sive 



Proc. major, Auct. Ardenna major, Reich. Puff, cinereus, Bp. [1828.] 



Audub., Nutt. non Gm. 



Above smokey brown, the feathers with lighter edges. Posterior upper tail 



coverts mostly white. A definite line of demarcation between the brown and 



white on the sides of the head and neck. Length 18 to 20 inches ; bill 2, 



wing 13, tarsus 2-40. 



17. P. ANGLORUM Temm. 



Proc. anglornm, Ray. Puff. anr/Iorum, auct. Proc. pujinus, L., Gm. 



Lath., Briinn. sed non al. auct. quje P. major. Nectris pujinus. Keys. 



et Bias. P. arcticiis. Fab. P. Baroli, Bonelli. 



Tarsus equal to middle toe without claw. Bill about two-thirds the tarsus, 



along culmen 1"40- inches ; wing 9-25. Above very deep lustrous brownish 



black, — darker than in any other species. 



18. P. YELC0ANUS Bp. 



Proc. yelkuan, Acerbi. 

 From the Mediterranean Sea. Like P. anglorum, but lighter colored above, 

 the point of the wing more elongated, and lateral under tail coverts uniformly 

 deep grey. 



19. P. OBScuRus Vieill. 



Proc. obscurus, Gm. Proc. sive Puff, obscurux, auct. NectrU obscurus, 

 Kuhl. Cijm.ostomns obscurus, Macgill. Puff. I'herminieri, Less. P. 

 fluridanus, Mus. Berol. 

 Bill three-fourths as long as the tarsus. Tail very long, much graduated. 

 Above grayish, or plumbeous black, not extending on the sides of the head 

 below the eyes. Axillary feathers white. Longest posterior under tail co- 

 verts brownish black, rest white. Bill 1*25, wing 8, tail 4*25, exterior rec- 

 trices an inch shorter. Tarsus I'tIO ; middle toe an^i claw 180 — inches and 

 hundredths. 



20. P. orisTnoMELAS Coues, nov. sp. 



From Cape St. Lucas. Generally like P. ohscuru.<,'biit larger, with a longer 

 bill and wings, a shorter, less graduated tail ; almost all the under tail co- 

 verts and axillary feathers fuliginous black, and a difl'erent line of demarca- 

 tion between the color of the upper and under parts on the sides of the head 

 and neck. Bill 1-40, wing 0, tarsus I'SO, middle toe and claw 2-10, tail 3-75, 

 outer rectrices only "(lO hundredths of an inch shorter. 



21. P. NUGAX Bp. 



Proc. 7iufjax, Solander. Pvff. assimilis, Gould. " Proc. austraiis, Eyton." 



From the Australian seas. Smallest of all ; wing only 65 inches, tail 2|, 



bill one inch, tarsus 1-|. The white of the under parts mounts high up on 



the sides of the head. Under tail coverts entirely white. Under surfaces of 



inner webs of primaries dull whitish. 



[April, 



