584 CLASS AVES. 



St. Melanogaster. Id. Col. 434. 



Chest and back, ash-grey ; wing-coverts, bluish ; 

 quills and tail, whitish-grey ; crown, nape, abdo- 

 men, and under tail-coverts, black ; lores and cheeks, 

 white. Ceylon and Java. Length, ten and a half 

 inches. St. Javanica, Horsf. 



Sooty Tern. St. Fuliginosa. Wilson. Amer. Orn. 

 xiii. t. 72, f. 7. 



Bill, black ; front exterior edge of the outer tail-fea- 

 thers, and all beneath, white ; tail, deeply forked ; 

 webs, entire. 



Marsh Tern. Sterna Aranea. Wilson. A. Orn. 

 viij. t. 72, f. 6. 



Bill, very short, stout, black ; quills, shaft white ; 

 tail, slightly forked ; tarsus, one and a-half inches 

 long, black, equal to the middle toe ; webs, deeply 

 indented ; hind nail, straight ; crown, deep black in 

 summer. 



Sterna Berc/ii, Licht. 



Bill, long, compressed, arched, white ; base, brownish ; 

 tail, forked, rather longer than the wing; occiput, 

 crested. Length, eighteen inches ; cro^svn, in summer 

 black. Cape of Good Hope. 



Sterna Galericulata, Licht. 



Bill, long, compressed, straightish, white ; tail, forked, 

 two inches longer than the wings ; occiput, crested. 

 Length, nineteen inches ; bill, three inches. Brazils. 

 Crown and forehead, in summer, white ; occiput, and 

 spot before the eye, black. 



