Order PASSERIFORMES. Family MUSCIOAPID M. 
No. 452. 
ETHELORNIS MASTERSI. 
GULF FLYEATER. 
(Plate 384.) 
Pseudogerygone mastersi Sharpe, Cat. Birds Brit. Mus., Vol. IV., p. 224 (footnote), 
(pref. March) 1879. New name for Gerygone simplex Masters : Norman River, 
Gulf of Carpentaria, Queensland. 
Gerygone simplex Masters, Proc. Linn. Soc. N.S.W., Vol. I., p. 52, Feb. 1876 : (Norman 
River) Gulf of Carpentaria; Ramsay, Proc. Linn. Soc. N.S.W., Vol. II., p. 
183, 1878. 
Not Gerygone simplex Cabanis, Journ. fur Ornith. p. 316, 1872. 
P seudogerygone mastersi Sharpe, Cat. Birds Brit. Mus., Vol. IV., p. 224 (footnote), 1879 ; 
Ramsay, Proc. Linn. Soc. N.S.W., Vol. IV., p. 316, 1879 ; Mathews, Handl. Birds 
Austral., p. 64, 1908. 
Gerygone mastersi Ramsay, Tab. List Austr. Birds, p. 7, 1888. 
Gerygone Icevigaster mastersi Mathews, Nov. Zool., Vol. XVIII., p. 310, 1912 : (Cape York 
errore). 
Gerygone Icevigaster mungi Mathews, ib., Jan. 31st, 1912 : Mungi, North-west Australia. 
W ilsonavis Icevigaster mungi Mathews, List Birds Austr., p. 173, 1913. 
Wilsonavis Icevigaster mastersi Mathews, ib. 
W ilsonavis mastersi Mathews, Austral Av. Rec., Vol. II., p. 135, Jan. 28th, 1915. 
Wilsonavis simplex Mathews, ib. 
Distribution. Interior Northern Australia from Normanton, Queensland, to Mungi, 
North-west Australia. 
Adult female. General colour above pale russet-brown including the crown of the head, 
sides of the face, hind-neck, upper tail-coverts, and upper wing-coverts ; bastard- 
wing, primary-coverts, and flight-quills hair-brown with pale inner edges to the 
last ; tail like the back with a dark subterminal band on the lateral feathers and 
with more or less white on the apical portion ; lores and a line over the eye whitish ; 
throat, breast, abdomen, under tail-coverts, axillaries, and under wing-coverts 
silky-white ; under-surface of quills pale brown with paler inner edges ; lower 
aspect of tail darker than the quill-lining with more or less white at the tip. Total 
length 95 mm. ; culmen 8, wing 52, tail 37, tarsus 18. Figured. Collected at 
Kimberley (= Normanton), Gulf of Carpentaria, Queensland, in July 1884, 
Adult male. Similar to the adult female. 
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