ZOOLOGY. 105 



2. Palmamedia. Screamer. Bill conical, the upper man~ 



dible hooked ; nostrils small, oval ; toes slightly con- 

 nected at their bases. 



Only two species are known, the Horned Screamer 

 P. Corfiuta, and the Crested Screamer, P. Crisiata^ they 

 are both natives of South America, and feed like the last 

 genus ; the young and eggs are sometimes eaten : their places 

 of resort are principally in the vicinity of extensive swamps. 



3. Myderia. Jabiru. Bill long, sharp pointed, inclining 



upwards at the tip, upper mandible triangular ; front 

 of the head bare of feathers ; nostrils linear ; tongue 

 small ; feet as in the last genus. 



The Jablrus are natives of India, South America, and 

 New Holland, they feed principally on fish, in default of 

 which, small animals and even carrion are greedily devoured. 

 Their flesh is not applied for the purposes of food : they fre- 

 quent marshy places, and the banks of rivers and lakes. 



4. Cancroma. Boat-bill. Bill gibbous, shaped like an 



inverted boat ; nostrils small, placed in a furrow ; 

 tongue small : feet four toed, all separate. 



This genus is confined to South America, is of a dull 

 heavy disposition ; they frequent woody situations on the 

 margins of rivers, or in the vicinity of the sea • build In tree?, 

 And feed on fish, reptiles, and crabs. 



