CEYLON RAILS, WADERS, GULLS, AND TERNS. 219 
to stray specimens of one species having been recorded from 
the north of the Island. The remaining genera—T'erekia 
(Avocet Sandpiper) and Pavoncella (Ruff and Reeve)—are 
each confined to a single species, of which rare stragglers have 
been obtained within our limits. 
The two genera devoid of webbing between the toes are : 
First, Tringa (the Stints), out of which five species visit us. 
These are all small birds about the size of a sparrow. Three 
of them swarm, about the flat shores of our lagoons, but two 
are excessively rare. Second, Calidris (the Sanderling), another 
single species, placed in a separate genus by reason of its 
having no hind toe, and only once recorded from, Ceylon. 
Rough Key to Ceylon Totanine. 
I.—Toes partially webbed. 
A.—Bill curved downwards, long; wing over 9 inches. 
Genus Numenius. 
(a) Crown streaked, wing about 11°5. 
Numenius arquatus (Curlew). 
(6) Crown brown with a pale broken band down 
centre, wing about 9°5. 
Numenius pheopus (Whimbprel). 
B.—Bill straight, long, and with a blunt point ; wing 7°5 
or over. Genus Limosa. 
(a) Tail half white, half black. 
Limosa belgica (Black-tailed Godwit). 
C.—Bill curved upwards, twice as long as tarsus, which is 
short. Genus Terekia. 
Terekia cinerea (Avocet Sandpiper). 
D.—Bill about same length as tarsus, slender, straight 
(except in one species), the tip of upper mandible 
hard and slightly bent down. Genus Jotanus. 
(a) Small forms, wing not over 5 inches, legs greenish. 
(1) Rump not white. 
Totanus hypoleucus (Common Sandpiper). 
(2) Rump white. 
Totanus glareola (Wood Sandpiper). 
