( Ixvi ) 
Sup-FAMILY Sternine. 
Marsh TERNS... Gull like bill and body. 
RIVER c .... Body slender, long forked tail. 
SEA 3 fn Yellow bill, forked tail, very long 
wings. 
OCEANIC _,, ... or Noddies. Plumage black. 
SKIMMERS ... Rhynchops. 
GENUS Sylochelidon. 
(982) S. caspius—Largest 
GeENuS Gelochelidon. 
(983) G. anglicus—Gull-billed 
GrEnus Hydrochelidon. 
(984) H. Indica—Small Marsh 
GENUS Seena. 
(985) S. aurantia—Large River 
GENUS Sterna. 
(986) S. Nirundo—European 
(987) S, Javanica—Black-bellied 
GENUS Sternula. 
(988) S. minuta—Little 
GrENUuS Thalasseus. 
(989) T. cristatus—Large Sea 
(990) T. bengalensis-—Small Sea 
GENUS Onychoprion. 
(991) O. melanauchen—Black-naped 
(992) O. anasthetus—Brown-winged 
GENUS Anous. 
(993) A. stolidus 
(994) A, tenuirostris—White-headed 
Tern. 
