PHA LA CR OCORA CID^ : CORMORA NTS. 



961 



vertebrae in the neck, where the kink already mentioned (p. 95'2) begins at the 9th; the 20th- 

 24th are opisthocoelous. The sternum has a short deep keel, with which the furculum is not 

 ankylosed. There is a bulky free pa- 

 tella, coexistent with a short cnemial 



apophysis or rotular process of tibia, ;^?C>;^^^'^#=='*'^^^^?§^N 



but perfectly distinct therefrom, as in 

 Grebes. The muscles of the legs are 

 as in Sulidcc ; there are two carotids ; 

 the subcutaneous cellular tissue is not 



Fio. G74. — Sternum and Bhouhler-pirJle 

 of I'hnliicrocorai bicristn/u.^, nat. size. 

 (From nature by Dr. R. W. Shufeldt.) 



emphysematous. The ptcrylosis agrees essentially 

 with ordinary pterylogruphic churacters, but tlio apteria 

 are very narrow, and the plumage is peculiar in certain 

 details. Excepting a few sj)eckled s})ecies, and some 

 others that are largely white below, the plumage is glossy or lustrous black, often highly 



61 



Fio. 675. — Knee-joint of Phalacrocoraz 

 bicrislatii.t, nat. size, from nature by Dr. R. 

 W. Shufeiat. F, fuiuur ; P, patella ; T, tibia ; 

 Fb, fibuhi. 



