CEYLON WATER BIRDS. 301 
C.—Size medium ; wing 10°25; nostril tube terminating 
in a single orifice, but divided within ; plumage 
black and white. 
Daption capensis (the Cape Petrel). 
OCEANITES OCEANICUS (Blanford, Vol. IV., p. 354 ; 
Legge, p. 1056). 
Wilson’s Stormy Petrel. 
Description.—Upper parts sooty black ; the forehead and 
under parts slightly browner and paler; the greater wing 
coverts gray-brown ; the upper tail coverts and hindmost 
part of the flanks white. 
Bill black ; iris almost black; legs and feet black, the 
centre of the webs between the toes pale yellow. 
Length 7°5; wing 6:25; tail 3; tarsus 1°3; bill from 
gape °65. 
Distribution.—Legge records the fact that a small black 
Petrel with white tail coverts had occasionally been seen 
round the coast of Ceylon, and that it was probably this species, 
which occurs in the Indian and Atlantic Oceans and is not 
rare in the seas round India. Recently, in October, 1916, 
Mr. W. A. Cave came across some small petrels of a similar 
description skimming close to the water in rough weather at 
the mouth of Colombo harbour. On several occasions he 
came within a few yards of the birds, and identified them with 
practical certainty as belonging to the present species. 
PUFFINUS CHLORORHYNCHUS (Blanford, Vol. IV., p. 356 ; 
Legge, p. 1054). 
Green-billed Shearwater. 
Description—Dark smoky brown above, paler beneath, 
with a grayish tinge, which is most pronounced on the chin 
and throat. 
Bill dusky greenish ; iris almost black; legs and feet 
fleshy-white. 
Length 16; wing 10°75; tail 5; tarsus 1°8; bill from 
gape 1°8. 
