"■ 



V ' 



150 



TOTIPALMATE SWIMMERS — STEUANOl'ODEa 



,1 



I*' V 



h. FloridanuB. THE 80VTHBBH D0UBLE-CBB8TED COBMOKANT. 



Phalacrocorax floridamuH, Aun. Orn. Biog. 111. 1835, 087 ; V. 1839, 032, i-l. 261 ; Synoii. 183U, 303 ; 



B. Am. VI. 1843, 430, pi. 417. 

 Oracuhis floridanua, Honaf. Coiisp. II. 185,'), 172. — Lawii. in Haiid'H B. N. Am. 1858, 879.— 



BAiiti), Cat. N. Am. B. 1859, no. 624. 

 Omculus (li/uphus, \a.\\ floridnnus, CoUEs, Key, 1872, 303 ; Check List, 1873, no. 530rt. 

 Gmeulus dilophus, b. fluiidanus, I'oUE.s, B. N. W. 1874, 587. 

 Phalacrocarax dilophus flondatius, RiDow. Nom. N. Am. B. 1881, no. 643rt. — CouE», 2d Check 



LUt, 1882, no. 753. 



c. CinoinnatuB. THE WHITE-TTTITBD COBKOBAITT. 



Carho cinciivnatus, Biiandt, Bull. Sc. Ac. St. Petersb. 111. 1838, 55. 



Omculus eincinnalus, Giiay, Gen. B. 1845. — Lawiu in Baii-d's B. N. Am. 1858, 877. — Baiki), Cnt. 



N. Am. B. 1859, no. 622. 

 Pluihicrocoriix eincinnalus, BoNAr. Consp. II. 1855, 168 ; Compt. Rend. XLIl. 1856, 766. 

 Phalacvocorax dilophus cincinwUtia, lliDOW. N. Am. B. 1881, no. 6436. — CoiiES, 2d Check List, 



1882, no. 752. 

 Oraculus dilophus, Dai.i. & Bannist. Trans. Chicago Acad. 1. 1869, 302 (Sitka). 



d. AlbociliatuB. THE lEBSEB WHITE-TUFTED COBMOBANT. 



Phalacrocarax dilophus albociliaius, RiDow. Cat. A(iuat. and Fish-eating Birds, 1883, 27 (mo descrip- 

 tion) ; Proc. Biol. Soc. Washington, II. Apr. 10, 1884, 94. 



Hab. Of true dilophxis, the whole of Eastern North America, breeding chiefly north of tlip 

 United States ; of Jlnridanus, South Atlantic and Gulf States, and Lower Mississippi Valley, to 

 Southern Illinois ; of cincimuitus, the Pacific coast of North America, south in winter, to Cali- 

 fornia, north to coast of Norton Sound, Alaska ; of alhociliatus, coast of California, south to Cape 

 St. Lucas and Revillegigedo Islands. 



Sp. Char. Basal outline of the gular pouch extending straight across the throat or projecting 

 slightly back along the median line. Adult, in full hreedimj-plmnagc : Head, neck, rump, and 



entire lower parts, glossy black, 

 with a faint lustre of dull bluish 

 green ; back, .«capulars, and wings, 

 dull grayish brown, each featiier 

 conspicuously and broadly bor- 

 dered with black ; tail uniform 

 dull black. A tuft of narrow, 

 lengthened, curved feathers on 

 each side the crown, springing 

 from behind and above the eye, 

 these feathers either wholly black 

 (in eastern specimens), mixed black 

 and white (in specimens from the 

 interior), or wholly pure white 

 (in Pacific coast examples); neck 

 sometimes, but rarely, with a 

 few scattered white filamentous 

 feathers. Maxilla black, mottled 

 with grayish or dull yellowish 

 along the sides ; mandible yellowish or pale bluish, mottled with dusky ; loral region and gular 

 sac deep orange ; eyelids and whole interior of the mouth bright cobalt-blue, the former some- 

 times dotted with white iris bright grass-green; legs and feet deep black.^ Adidt, in xdnkr : 



> Audubon gives the fresh colors of the larger ea.stern foi-m (or true dilophus) as follows: — "Jdnlt 

 male, at commencement of tlw breeding-season: Upper mandible dusky, along the edges grayish-yellow ; 

 lower yellow, irregularly marked with dusky toward the edges. Iris bright green, margin of eyelids. 



P. dilophus floridanus, nuptial dress. 



I IV... i. 



iisiiiii! 



