184 



MEMOIRS OF THE CARNEGIE MUSEUM 



" P. perspieillatus appears to have been a much heavier bird than carbo, and a bird 

 of weaker flight ; with more robust and muscular legs, and a more slender and more 

 feeble head and neck. 



Skull and Jaw-bones of Pallas' Cormorant. (After Lucas.) 



Flo. 31. Phalocrocorax perspicillatua, inferior aspect of cranium. The anterior and posterior portions are from dif- 

 ferent individuals. (Nat. size. ) 



Flo. 32. Phalacrocorax perspieillatus, left ramus of jaw, external aspect. ( Nat. size. ) 



FIG. 33. Phalacrocorax perspieillatus, mandible and left palatine, external aspect. (Nat. size.) 



" In comparing the tables of measurements it must be said that they do not 

 adequately convey the impression produced by a comparison of the bones them- 

 selves. Thus, in the measurements of the lower mandible the greatest vertical width 



