Order PASSERIFORMES. 
No. 501. 
Family ORTHON YGID/E. 
MACRORTHONYX SPALDINGI. 
BLACK-HEADED LOG-RUNNER. 
(Plate 422.) 
Orthonyx spaldingi Ramsay, Proc. Zool. Soc. (Lond.), 1868, p. 386, Oct. 1st : Rocking- 
ham Bay, Queensland. 
Orthonyx spaldingi Ramsay, Proc. Zool. Soc. (Lond.), 1868, p. 386 ; Gould, Birds Austr., 
Suppl., pi. 53, pt. 5, Aug. 1st, 1869 ; Ramsay, Proc. Zool. Soc. (Lond.), 1875, p. 599; 
Sharpe, Cat. Birds Brit. Mus., Yol. VII., p. 331, 1883 ; Ramsay, Proc. Linn. Soc. 
N.S.W., Vol. II., p. 191, 1878; id., Tab. List Austr. Birds, p. 15, 1888; Hall, 
Key Birds Austr., p. 27, 1899 ; Campbell, Nests and Eggs Austr. Birds, Yol. I., 
p. 252, 1901 ; North, Austr. Mus. Spec. Cat., No. 1, Yol. I., p. 318, 1904; Mathews, 
Handl. Birds Austral., p. 69, 1908 ; id., Nov. Zool., Vol. XVIII., p. 329, 1912 ; id., 
South Austr. Omith., Yol. II., p. 57, 1915 ; Campbell and Barnard, Emu, Vol. XVII., 
p. 26, 1917 (N.Q.). 
Macrorthonyx spaldingi Mathews, List Birds Austr., p. 197, 1913. 
Macrorthonyx spaldingi albiventer Mathews, Austral Av. Rec., Vol. II., pt. 7, p. 130, 
Jan. 28th, 1915 ; Atherton, North Queensland. 
Distribution. North Queensland (Rockingham Bay district). 
V \ 
Adult male. Crown of head, nape, sides of face, sides of neck, and sides of breast black ; 
back, wings, tail, sides of body, thighs, and under tail-coverts dark smoke-brown 
like the axillaries and under wing-coverts ; chin, throat, breast, and middle of 
abdomen white ; under-surface of flight-quills and lower aspect of tail smoke- 
brown. Eyes brown, bill and feet black. Total length 280 mm. ; culmen 19, wing 
133, tail 111, tarsus 50. Figured. Collected on the Johnstone River on the 18th 
of June, 1900. 
Adult female. Crown of head, nape, hind-neck, sides of face, sides of neck, and sides of 
breast black ; entire back, wings, tail, and sides of body coffee-brown like the 
vent, thighs, under tail-coverts, axillaries and under wing-coverts ; shafts of flight- 
quills and tail-feathers glossy black, which extend beyond the webs of the latter ; 
chin, throat, and fore-neck chestnut ; middle of breast and middle of abdomen 
white with dark brown tips to some of the feathers ; under-surface of flight-quills and 
lower aspect of tail dark smoke-brown. Eyes dark brown, bill, feet and legs black. 
Total length 235 mm. ; culmen 16, wing 122, tail 87, tarsus 45. Figured. Collected 
at Atherton Scrubs, near Cairns, North Queensland, in September 1908. 
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