PHALACEOCOEAX. 153 



Juv. Supra griseo-bronzinus, plumis nigro marginatis ; pileo et collo postico saturate brunneis ; facie laterali 

 et eorpore subtus cinerascenti-brunneis ; abdomine, hypoohondriis et subeaudalibus nigris. 



Edb. Eastern North America generally, breeding to the northward of the United 

 States (P. auritus) ; South Atlantic and Gulf States and Lower Mississippi 

 Valley, north to Southern Illinois ^ ^^ {P. floridanus). — Mexico, Cozumel I. 

 [Gaumer ^) ; British Honduras, Turneff Lagoon '', Man-o'-War Cay, Belize coast * 

 {0. S.). 



This species, like the preceding, has twelve tail-feathers, and is therefore an ally of 

 P. pelagicus, but differs from the latter in the black-edged feathering of the upper 

 surface. It belongs, however, to a different group of Cormorants, as in the breeding- 

 season no white flank-spots are assumed, and the white ornamental plumelets are 

 otherwise disposed, taking the form of two lateral tufts, one on each side of the crown. 

 These crests, which spring from the side of the head just behind the eye, are either 

 black, or white intermixed with a few black plumes. 



Four races of this form of Crested Cormorant are recognized by American ornitho- 

 logists, viz. : P. auritus (i. e. P. dilophus, auct.) and P. floridanus of Eastern North 

 America, both with black crests ; these are replaced on the Pacific coast by P. cincinnatus 

 and P. albociliatus, in which the crests are wholly or partially white. 



We follow Mr. Ogilvie Grant in recognizing two forms only, as he has pointed out 

 that the characters of P. auritus and P- floridanus merge into each other, and the same 

 may be said of P. cincinnatics and P. albociliatus. 



Of P. auritus we have received a few examples from Cozumel Island, off the coast 

 of Yucatan, from Dr. Gaumer ^ ; and Salvin met with the species on Man-o'-War Cay, 

 off the Belize coast s. After climbing along the matted tree-roots to the northern end 

 of the Cay, he found the birds sitting on the outer boughs of the fringe of mangroves 

 some twelve feet above the water. It was the breeding-season, and the nests, 

 which were strongly built of sticks, hollowed inside, and partly lined with freshly- 

 picked mangrove-leaves, contained from one to four chalky-white eggs, the latter 

 number appearing to be the full complement. 



3. Phalacrocorax cincinnatus. 



Carbo dncinatus, Brandt, Bull. Acad. St. P^tersb. lii. p. 55 '. 



Phalacrocorax dncinatus, Ogilvie Grant, Cat. Birds Brit. Mus. xxvi. p. 373 ^ 



Phalacrocorax dilophus dncinatus, A. 0. U. Check-1. N. Amer. Birds, 2nd ed. p. 43 ' ; Ridgw. 



Man. N. Amer. Birds, 2nd ed. p. 78 '. 

 Phalacrocorax dilophus albociliatus, Ridgw. Water Birds N. Amer. ii. p. 150' ; A. O. U. Check-1. 



N. Amer. Birds, 2nd ed. p. 43 ' ; Ridgw. Man. N. Amer. Birds, 2nd ed. p. 78 '. 



P. aurito similis, sed cristse plumis in ptilosi aestiva plerumque vel omnino albis, rarius nigro mLstis : rostro, 

 pedibus, iride, facie gulaque midis sicut in P. aurito coloratis. Long, tota circa 30-5, alse 13-0, caudae 5-5, 

 culm. 2-25, tarsi 2-6. (Deser. exempl. ad. ex Aleutian Is. Mus. Brit.) 



BIOL, centr.-amer., Aves, Vol. III., October 1901. 20 



