592 
CATALOGUK. 
with great avidity ; tliey became very tame, and always greeted their 
feeder with a croak. On one occasion, they bolted some ducklings 
which ventured within reach of their beaks. "When first procured, 
one of these was very young, and without any sign of a horn upon 
his head ; it grew, however, very rapidly. Small flocks of these birds 
may sometimes be seen at dusk flying steadily along over the tops of 
the jungle, and evidently bound for a long flight. Their note is a very 
harsh and discordant croak, uttered with the mouth wide open, and 
with a curious alternate movement of the floor of the mouth and the 
short tongue, at every repetition. It lasts sometimes for a minute 
or more, and is very striking when heard in the woods ; it sounds 
something between the bray of an ass and the croak of a Landrail." 
— (Messrs. Motley and Dillwyn, Nat. Hist, of Labuan, 1855.) 
Genus novum ? 
872. HYDROCISSA (?) MALAYANA, Raffles Sp. 
Buceros malayanus. Baffles , Trans. Linn. Soc. XIII. 
p. 292 (1822), juv. ^. Temminch, Text, de Rl. 
Col. G. B. Gray, Gen. of B. II. p. 399. Blyth, 
J. A. S. Beng. XVI. p. 995 ; XVIII. p. 803 ; Cat. 
B. Mus. A. S. Beng. p. 43. 
Hydrocissa malayana, Bonap., C. G. Av. p. 90. 
Buceros anthracinus, Temm., Bl. Col. 529. 
Buceros bicolor. By ton, B. Z. S. (1839), p. 104. Blyth, 
J. A. S. Beng. XII. p. 995. 
Buceros Elliotti, Say, Madr. Journ. XIII. pt. II. p. 152 
(1844). 
The mite-browed Hornbill. 
Quay Quay, Malays, Eyton. 
Mattee See-cawak, Malays, Cantor. 
a. S • Juv. Malacca. Presented by J. Middleton, Esq. 
b. c. ?. Province . Wellesley, Malacca. Presented by 
Dr. Cantor. 
In our specimen of immature male, the plumage is wholly glossy- 
black, excepting a superciliary coronal circle and tips of the four 
outer tail-feathers, which are white ; the bill and casque are spotless 
yellowish-white, excepting the base of the former and hindmost part 
of the latter, which are black, the casque sloping gradually in front 
to the curvature of the bill. Length of \ving 10^ in., of tail 12^ in., 
