FALCUNCULID-®. 
681 
Muscitrea simplex (Gould). (8-219.) Brown Whistler. 
Pachycephala simplex Gould, Proc. Zool. Soc. Lond. 1842, p. 135, 
Feb. 1843 : Port Essington, Northern Territory. (Fig. Gould, ii. 
pi. 72 ; Math. viii. pi. 397.) 
Pachycephala grisola riordani Mathews, Austral Av. Rec. vol. i. p. 41, 
April 2nd, 1912 : Melville Island, Northern Territory. 
Distr. —Northern Territory of Australia. 
Muscitrea sulfuriventer (Wald.). Yellow-vented Whistler. 
Distr .—Celebes. 
Muscitrea sulfuriventer sulfuriventer (Walden). (8-221.) 
Hyloterpe sulfuriventer Walden, Ann. & Mag. Nat. Hist. 1872, p. 399 : 
Celebes (North). (Fig. M. & W. pi. 18.) 
Distr .—Celebes (North). 
Muscitrea sulfuriventer meridionalis (Butt.). 
Pachycephala meridionalis Biittikofer, Notes Leyden Mus. vol xv. 
p. 168, 1893 : Macassar, Celebes (South). 
Distr. —Celebes (South). 
Genus HYLOCITREA Math. 
Hydodtrea Mathews, Bull. Brit. Orn. Club, vol. xlv. p. 87, 1925. 
Type (by original designation): Pachycephala honthaina M. & W. 
Hylocitrea bonthaina (M. & W.). Celebes Whistler. 
Pachycephala bonthaina Meyer & Wiglesworth, Abh. Ber. K. Zool. Mus. 
Dresd. Bd. vi. no. 1, 1896, p. 10: Bonthain Mts., South Celebes. 
(Fig. M. & W. pi. 19.) 
Distr .—Celebes (mountains in South). 
Hylocitrea bonensis (M. & W.). Buff-throated Thickhead. 
Pachycephala bonensis Meyer & Wiglesworth, ib. 1894, p. 2 : Bone 
Mts., Celebes. (Fig. M. & W. pi. 18.) 
Distr . — Celebes (mountains in North). 
Hylocitrea pluviosa (Riley). Pluvian Thickhead. 
Pachycephala pluviosa Riley, Proc. Biol. Soc. Wash. vol. xxxii. p. 95, 
1919 : Rano Rano, Celebes. 
Distr. — Mountains of Central Celebes. 
