440 STKUCTUEE AND CLASSIFICATION OF BIRDS 



distinctly charadriine. A groove runs forward from the 

 nostrils, as in Scopus, &c. (q.v.) 



Family Phcenicopteridse. 1 Phoenicopterus agrees with 

 the storks in the subdivision of the prebronchial air sacs by 

 many septa into smaller chambers. But, as this also occurs 



Ac 



FIG. 209. SYRINX OF Pliccnicoptcrus (AFTER WELDON). 

 An, frout view ; Ac, lateral view. 



in Cliauna and to a much greater extent, less weight must 

 be laid upon it than upon some of the muscular characters. 



In the storks, as in Scopus, but not the Anatidse, the pec- 

 toralis major is divided into two distinct layers. This is also 

 the case with Phoenicopterus. The tensor es patagii are 

 closely similar in the birds under comparison and diverge 

 from those of the cluck. The ducks are peculiar in the origin 

 of the smallest head of the gastrocnemius from the biceps ; 



1 Our knowledge of the anatomy of the ' soft parts ' of Phoenicopterus is 

 mainly due to WELDON (P. Z. S. 1883) and to GADOW (Joitrn. f. Orn. xxv. 

 p. 382.) 



