riiOCELLARIIDjE — PUFFININ.E: SHEARWATERS, ETC. 1031 



agent from the verb is ddiTTrjs, daptes, devourer.) Pigeon Petrel. Bill much shorter than 

 head or tarsus, very stout and especially wide, as broad as high to the hook, where abruptly 

 compressed; culmeii nearly straight from tube to hook, which latter is neither large nor much 

 decurved ; sides of bill turgid, with convex outline from base to hook ; forks of lower mandible 

 wide apart, enclosing a Hat-irtm shaped space; rictus ample; skin of throat loose and disten- 

 sible, partly naked ; gonys very short, with slight angle ; inside the edge t)f upper mandible a 

 series of oblique ridges ; nasal case ^ as long as culmen, broad, depressed, with circular trun- 

 cate orifice. (Chai-acters of bill approaching those of Prion.) Wings folding about to end of 

 the short rounded tail, which is contained 2| times in length of wing, and is 14-feathered. 

 Tibiie little bare below ; tarsus much shorter than middle toe and claw, stout, compressed, 

 reticulate witli small circular plates outside, large ones inside ; outer toe without claw longer 

 than middle toe alone; hind toe well developed for this family. Small; plumage spotted. 

 One species. 



D. capeii'sis. (Of the Cape of Good Hope.) Pintado Petrel. Checkered Petrel. 

 Cape Pigeon. Pahdela. Dajiier. Spotted above with blackish and white ; white below; 

 tail black-barred; bill and feet black. Length 15.00; wing 11.00; tail 4.50; bill 1.33; tarsus 

 1.67. Southern seas at large; accidental on coast of California and iu Maine. (See especially 

 N. Eng. Bird-Life, ii, 1883, p. 380.) 



Subfamily PUFFININ/E: Shearwaters, etc. 



Nasal tubes usually short and low, with more or less thickened partition between the nos- 

 trils, and obliquely truncated at the end, so that separate openings of the nostrils are usually 

 visible from above (best seen in PuJJinus; little different in some other genera from Fulina- 

 ruuB). Bill variable in size and shape, from slend(;r and strict to stout and short; both man- 

 dibles well hooked at their ends ; no sign of ridges inside edge of upper mandible. Tail 

 variable in length and shape, but constantly 12-feathered. Wings very long and pointed ; 

 1st primary never shorter than 2d. Coloration as a rule bicolor, dark above and white below, 

 but in some cases wholly fuliginous. Cranial and other osteological characters as in Fulma- 

 rince (see p. 1020). 



This is the largest subfamily oi Procellariidic, including over 50 species, or about half the 

 family. It corresponds to the sections Piiffinece and (Estrelateoi of my early papers (18G4-CG), 

 and most of the species belong to the two genera Puffinus, with about 20 species, and (Estre- 

 lata, with probably over 30. The large sooty Majaqnens and the small snowy Pagodroma are 

 extralimital genera. The North American forms are readily determined by the following 



Analysis of Genera. 



S/iefirwaters, with tarsi much compressed, thin-edRed in front ; bill strict, with low broad nasal tube. 



Nasal tube ending somewhat as in Fulmars. Bicolor, but with dark under wing- and tail-coverts. Wing over 12.00 



Priojimts 

 Nasal tube ending very obliquely, so muesli bevelled off that both nostrils are visible from above, separated by a 



thick partition. Bicolor or unicolor ; size medium to small Pujf'inn.<t 



Petrel.^, with tarsi not notably compressed nor thin-edged in front ; bill stout, with short strict nasal tube. Tail 

 graduated. 



Tail less than half as long as wing, graduated less than one-third its length. Tlumage white below (in all our 



species) (ICstrelalu 



Tail more than half as long as wing, graduated more than one-third its length. Plumage fuliginous Buiweria 



I'lilOF'INUS. (Name compoundrd (if /V/o/; -\- Puffin us.) Fulmar Sheakwatkks. Hill 

 a little shorter than head, about ^ as long as tarsus, broad and stout at base, narrowing regu- 

 larly to the strong, much compressed and hooked tip; under mandible hooked to correspond 

 with upper, witli concave ijonys (as in Puffinus). Nasal tubes long for this subfamily, broad, 

 depressed (as in J'uffi'nus), but truncate and with thin ])artitiou (as in Fulmarus), so that the 



