1918. | H. C. Ropinson & C. B. Kxoss: Birds. 129 
Singly or occasionally in pairs along the river at the upper 
end of the valley, more abundant at the lower end on the 
shores of the lake. 
All these specimens except No. 1648 are quite adult 
as 1s shown by the absence of black edges to the feathers of the 
breast. There is no tinge of fawn on the flanks of any and 
they cannot therefore be referred to the nominal H. hum, 
Sharpe, of the Malay Peninsula, though some of the males have 
the wings very bright blue as in that form. The ear coverts 
are in most of the birds nearly black, in some slightly washed 
with bluish green on the lower margin and the black cervical 
collar is well marked. Sharpe has recorded both H. chloris, 
A. hum and H. armstrongi from Acheen from amongst 
specimens shot in one and the same month by Davison but 
we do not think that his theory that certain of the races are 
migratory is borne out by the facts, which are done less 
violence to by assuming that the species H: chloris is very 
variable in the same district. 
41. Rhytidoceros undulatus (Shaw). 
Rhytidoceros undulatus (Shaw); Salvad. Ann. Mus. Civ. 
Gen. xii, p. 190 (1879); Buttikofer, Notes Leyden Mus. ix, 
p. 34 (1887) ; Vorderman, Nat. Tijd. Neder]. Ind. xlix, p. 392, 
no. 95 (1889); Ogilvie Grant, Cat. Birds Brit. Mus. xvii, 
p. 382 (1892) ; Salvad, Bull. Mus. Zool. Turin, xi, p. 6 (1896). 
a,b. & %. Siolak Daras, Korinchi Valley, Sumatra, 
3,000 feet. 21st March, 1914. [Nos. 292, 
293. | 
c,d. 26. Sungei Kumbang, Korinchi, Sumatra, 
4,700 feet. April, May, 1914. |[Nos. 733, 
1586. | 
‘“‘ Male, iris red with a white inner ring, bill ivory white, 
tinged with reddish at the base, gular skin chrome with a 
transverse greenish bar.” 
Female, iris hazel with a white inner ring, bill ivory white 
tinged with brownish green at base, gular skin, silvery cobalt, 
with a transverse interrupted black bar.” 
Fairly common in heavy jungle on Korinchi Peak up to 
over 6,000 feet and also on the Barisan Range to its summit 
at nearly 7,000 feet. 
The only other large hornbill that we saw was Riinoplax 
vigil, of which the dried heads command a high price. No 
Buceros were seen. 
42. Anorrhinus galeritus (Temm.). 
Anorrhinus galeritus (Temm.); Salvad. Ann. Mus. Civ. 
Gen. xiv, p. 189 (1879); Buttikofer, Notes Leyden Mus. ix, 
p. 35 (1887); Vorderman, Nat. Tijd, Nederl. Ind. xlix, p. 392, 
Part II: Vertebrata. 7 
