1918. } H. C. Rogsinson & C. B. Koss: Birds. ¥37 
a-d. 246,14 imm.18. Siolak Daras, Korinchi 
Valley, Sumatra, 3,000 feet. 17-25th March, 
1914. [Nos. 198, 430-1, 442.] 
e. 1 6. Sungei Kumbang, Korinchi, Sumatra, 
4,700 feet. 315th May, 1914. [No. 1561.] 
f-h. 24,1 %. Sandaran Agong, Korinchi Valley, 
Sumatra, 2,450 feet. 25-26th May Ig14. 
[Nos. 1657, 1681-2. ] 
Adult :—‘‘Iris inner ring claret, outer white; bill sage 
green, a narrow stripe through nostril to gape claret, feet 
slaty green, orbital skin crimson lake.” 
Immature: ‘Iris reddish brown; bill: upper mandible slaty 
grey, lower green; feet greenish grey.” 
Fairly common on the lower forested slopes of the 
Korinchi valley and also amongst secondary growth but not 
ascending to any height as it was never seen above Sungei 
Kumbang. 
An awkward, clumsy bird, which climbs about trees, 
especially those festooned with creepers, apparently using its 
wings with difficulty and progressing largely by hopping. 
This race, for it is little more, comes very close to the 
form of Rh. tristis from the Malay Peninsula, Indo-China and 
Hainan, described as Rh. tristis hainanus by Hartert (Nov. 
Zool. xvii, p. 218 (Ig10)). In size it is slightly smaller (wing 
about 146 against 155 mm.), while it generally has a pronounced 
wash of yellowish on the breast and lacks the dark shaft 
stripes to the feathers of the head and foreneck. In one 
specimen however (No. 430), the yellow wash is almost absent, 
while the dark shaft stripes are distinctly in evidence. 
Rhopodytes diardi, Less. 
Melias diardi, Lesson, Traite, p. 132 (1831). 
Phoenicophaes sumatranus® Snelleman (nec. Raffles), in 
Veth’s Midden-Sumatra Vogels iv, p. 34 (1884). 
Rhopodytes diardt, Salvad. Ann. Mus. Civ. Gen. xiv, p. 186 
(1879); Buttikofer Notes Leyden Mus. ix, p. 30 (1887); Shelley 
Cat. Birds Brit. Mus. xix, p. 390 (1891); Salvad. Ann. Mus. 
Civ. Gen. (2) xil, p. 46 (1891). 
a.—b. 146,1?. Pasir Ganting, West Sumatran Coast, 
Lat. 2° S. 18th-22nd June, 1914. [Nos. 
1998, 2081. ] 
“Tris reb or grey, bill sea green, bluish at base of 
mandidle, feet slaty green, orbital skin crimson.” 
___ Very common in swampy jungle along the sea coast and 
in clumps of bamboo. 
Part II: Vertebrata. 8 
