ANSERIFORMES, 27. 
Suborder 19. HERODIONES. 
The Storks and the Herons may be diagnosed as follows :— 
A. Palate desmognathous. B. Spinal bare tract reaching far up the neck. ©. Man- 
dible not produced and recurved behind its articulation with the quadrate. 
This diagnosis may be strengthened by many other characters :— 
D. Basipterygoid processes absent. EE. Young born helpless. 













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The Herodiones consist of three families :—Ardeidi, Scopide, and Ciconiide. 
Ardeide.—Interclavicle projecting conspicuously within the angle of the furculum; a 
large powder-down patch on each side of the rump; no lateral bare tracts on neck. 
Scopide.—No interclayicular process within the angle of the furculum; no powder- 
down patches ; well-defined lateral bare tracts on neck. 
Oiconiide.—No interclayicular process within the angle of the furculum; no powder- 
down patches; no lateral bare tracts on neck. 
