348 



SAUROPSIDA (BIEDS> 



(ii) ^rdccB.— Cosmopolitan waders. Bill long and pointed, laterally- 

 compressed. Nares pervious. Neck long with long apteria. 

 Downs of adults only upon the apteria. Legs long ; four un- 

 webbedtoes. Young nestlings. Caeca rudimentary. Carnivorous 

 and piscivorous. 



ArdeidcB (Herons). — Several pairs of powder -down patches. 

 19-20 cervical vertebrae. 11 primaries. 



Fia. 182.— Types or Birds' Skdlls. 



c, skull of owl (Schizogiiathous, with Desmognathous tendency) ; u, skull of duck 

 (Desmognathous). Bpty basi-pterygoid ; L, lamellae of bill. 



(iii) Ciconim. — Waders. Long neck without apteria. Nares pervious. 

 Legs long. 



(1) CSscomiidcB (Storks).— Animal-feeders. 17 cervical vertebrae. 



Hallux long ; toes not webbed. Young nestlings. Tongue 

 and CEeca rudimentary. 



(2) Phwnicopteridce (Flamingoes). — Not found in these islands. 



