BAM: BARID As AI 
KEY TO THE SPECIES OF APHELOCEPHALA 
1. Upper parts plain olive-brownish or greyish, pileim somewhat darker than back. No 
pectoral collar 2 
— Back and rump chestnut-brown, pileum and wpper tari coverts hary-brown. With a 
black oy chestnut pectoral collar . 4 
2. Flanks pale greyish brown, sometimes faintly shaded with rufescent oF 
— Flanks cinnamon-rufous . 5. A. CASTANEIVENTRIS. 
Shel) CRON SUn espe ks bss RAW acre Re os ae tee: Se nee AER COLSISBEEN CORSIS= 
— Paler cree ne 2. A. LEUCOPSIS PALLIDA. 
4. Pectoral band broad, chestnut 3. A. PECTORALIS. 
— Pectoral band narrow, black. 4. A. NIGRICINCTA. 
1. Aphelocephala leucopsis leucopsis (Gould). (Pl. 2, Fig. 1.) 
Xerophila leucopsis Gould, Proc. Zool. Soc. Lond. Vol. 8, 1840, p. 175 (July 1841) (South Australia). 
Fig. Gould, Birds Australia, Vol. 3, pl. 67. 
Hab, South Queensland, New South Wales, Victoria, South Australia, Central- and parts of West 
Australia. 
< 
No 
. Aphelocephala leucopsis pallida Mathews. 
Aphelocephala leucopsis pallida Mathews, Bull. Brit. Ornith. Club, Vol. 27, p.62 (1911) (Leigh’s Creek, South Australia). 
Hab. Interior of South Australia (Leigh’s Creek). 
5. Aphelocephala pectoralis (Gould). 
Xerophila pectoralis Gould, Ann. Mag. Nat. Hist (4), Vol. 8, p. 192 (1871) (Port Augusta, South Australia). 
Fig. Gould, Birds New Guinea, Vol. 1, pl. 12. 
Hab. South Australia (Port Augusta). 
4. Aphelocephala nigricincta (North). 
Xerophila nigricincta North, The Ibis (7), Vol. 1, p. 340 (1895) (Missionary Plain, Central Australia). 
Fig. Report Horn Exp. Centr. Austr. Vol. 2, pl. 7, fig. sup. 
Hab. Central Australia. 
5. Aphelocephala castaneiventris (Milligan). 
Xevophila castaneiventrvis Milligan, Emu, Vol. 3, p. 70 (1903) (Day Down, Murchison District). 
Fig. Emu, Vol. 4, 1905, pl. 13, f. 1. 
Hab. West Australia: Murchison District, Central- and Western Division, as far north as Gascoyne River. 
-5. GENUS SPHENOSTOMA GouULpD 
Sphenostoma Gould, Proc. Zool. Soc. Lond. Vol. 5, 1837, p. 149 (1838) (sp. un. : S. cristatum Gould). 
Characters. Bill rather long, somewhat compressed, at base nearly as deep as wide; 
culmen distinctly curved; maxillary tomium without trace of subterminal notch; gonys 
decidedly concave. No rictal bristles. Nostrils basal, situated in a small, operculate groove, 
the roundish nasal opening wholly exposed, not covered by plumes, Latero-frontal plumules 
not directed forward. Wing moderately long, rounded; fourth and filth primaries longest; first 
primary well developed, about as long as half the second. Secondaries very long, being equal 
to about six-sevenths of the whole wing. Tail conspicuously longer than wing, much rounded. 
Tarsus robust, relatively short, about equal to middle toe; acrotarsium distinctly scutellate. 
Toes rather long and large, claws relatively short, though strong. Feathers of pileum lengthened 
and narrowed, forming a long, though not dense, erect crest. 
