CATHAKACTIDJE. 
better classification would obviously be C. skua Brunnicb and L. pmnarinus 
Temminck in one genus, and the other two in another genus, each with 
subgeneric rank. 
As I am only using one rank I am separating each under a separate 
genus. The present genus, Catharacta, is characterised by its large size, large 
powerful biU, strong legs and feet, and wedge-shaped tail. The bill is broad 
at the base, and the horny cere overhangs the longitudinal nostrils ; the hook 
is strong and powerful. The strong legs have the toes fully webbed, and 
provided with long, curved, sharp claws. The centre feathers of the tail 
are not specially lengthened, and the tad is less than half the length of 
the wing, which has the first primary longest. 
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