57 



CHRYSOCOMA. GORFOU. 



Generic Character. 



Rostrum basi rectum, latera- 

 tim compressum, oblique 

 sulcatum; mandibula su- 

 periore adunc^, inferiore 

 apice rotundata. 



Nares plumis tectae. 



Remiges et rectrices nuUae. 

 Pedes breves, tetradactyli. 



BeaTc straight at the base, 

 laterally compressed, ob- 

 liquely grooved ; the up- 

 per mandible hooked, the 

 lower rounded at the tip. 



Nostrils clothed with fea- 

 thers. 



Quills and tail-feathers want- 

 ing. 



Legs short, four-toed. 



CHRYSOCOMA. Cuv. ? 

 APTENODYTES. Forst., Gmel., Lath. 

 CATARRACTES. Briss. 

 PHAETON. Linn. 

 EUDYPTES. Vieill. 



These birds are distinguished from those of the 

 preceding genus by the beak being stronger, com- 

 pressed, and pointed ; it has the top rounded, and 

 the tip but little arched ; the groove in which the 

 nostrils are placed terminates obliquely at the lower 

 edge at one-third of the length from the tip. From 

 the Sphenisques they may be distinguished by the 



