CLASSIFICATION. 



X. — Pbiofinus, Hombr. et Jacq. 



Priofinus, Hombr. et Jacq., Comptes Rendus, XVIII., 

 p. 355 (1844) ; Jacq. et Pucheran, Voy. Pole Sud, 

 Zool., III., p. 145, PI. 32, Figs. 9-14 (1853) ; Coues, 

 Pr. Acad. Nat. Sci. Philad., 1866, p. 192; Salvin, 

 Cat. Birds Brit. Mus., XXV., p. 390 (1896) 



Adamastor, Bp., Consp. Av., II., p. 187 (1855) ; Coues, 

 Pr. Acad. Nat. Sci. Philad., 1864, p. 119 



The genus Priofinus is represented by a single species, 

 P. cinereus (p. 155), an inhabitant of the Southern Oceans. 



XI. — Thalassceca, Reichenb. 



Type 



P. cinereus 



P. cinereus 



Type 



Thalassceca, Reichenbach, Syst. Av., p. iv. (1852) ; Coues, Pr. 

 Acad. Nat. Sci. Philad., 1866, p. 29 ; Salvin, Cat. 

 Birds Brit. Mus., XXV., p. 392 (1896) 



Acipetes, Forbes, Voy. " Challenger," Zool., IV., pt. XI., 

 p. 59 (1882) 



Represented by a single species, Thalassceca antarctica (p. 161), peculiar to the 

 Antarctic Ocean. 



T. antarctica 

 T. antarctica 



XII. — Priocella, Hombr. et Jacq. 



Type 



Priocella, Hombr. et Jacq., Compt. Rend. XVIII., p. 357 

 (1844) ; Jacq. et Pucheran, Voy. P61e Sud, 

 Zool., III., p. 148, PI. 32, Figs. 43, 56 (1853) ; 

 Salvin, Cat. Birds Brit. Mus., XXV., p. 393 (1896) P. glacialoides 



Thalassceca, pt., Coues, Pr. Acad. Nat. Sci. Philad., 1866, p. 29. 



A single species, P. glacialoides (p. 165), inhabiting the Southern Oceans. 



XIII. — Majaqueus, Reichenb. 



Majaqueus, Reichenbach, Syst. Av., p. iv. (1852) ; Coues, Pr. 

 Acad. Nat. Sci. Philad., p. 117 ; Salvin, Cat. Birds 

 Brit. Mus., XXV., p. 395 (1896) 



Cymatobulus, Heine, Nomencl. Mus. Hein., p. 363 (1890) . . 



Key to the Species. 

 a. Larger ; chin and sides of face with a varying amount 

 of white 



Type 



M. aiquinoctialis 

 M. cequinoctialis 



cequinpctialis, p. 169 



XLIII 



