DUTCH BORNEO-EXPEDITION, 159 
22. Cyanops mystacophanos. 
Bucco mystacophanos Temm. Pl. Col. Il, N°. 815 (1824). 
Chotorea mystacophanus Salvad. Ucc. Born. p. 34, pl. 1. 
Megalaema mystacophanus Goffin, Mus. P. B. Buccones, p. 18; 
Everett, L. B. Born. p. 167. 
Megalaema mystacophanes Sharpe, Ibis 1890, p. 4. 
Cyanops mystacophanes Shelley, Cat. Birds Br. Mus. XIX, p. 72. 
Nineteen adult males and thirteen females from Sanggau, 
Roema Manoeal, Mounts Kenepai and Liang Koeboeng, 
Nanga Raoen and Poelau and thirteen from Long Bloe (Upper 
Mahakkam). — Iris dark brown, eyelid olive-green, bill 
entirely black in the males, black with the base of lower man- 
dible greenish white in the female; feet dirty olive-green. — 
Contents of stomach: rests of the fruits of Urostigma. 
Hab. Malay Peninsula, Sumatra and Borneo. 
The question whether the adult females are similar in 
color to the adult males or not, has hitherto never satisfac- 
torily been settled, though the species is very common in 
the forest-regions of the above mentioned countries. 
Goffin (1. c.) considers the adult female to be of the 
same color as the adult male, but this opinion is solely 
based upon a specimen collected by Schwaner and mentioned 
as a female, while there are strong reasons to consider it 
an adult male, 
Salvadori (l.c.) does not share the opinion of Goffin’s, 
the collections of Doria and Beccari containing not a 
single specimen in full color (i. e. with golden yellow 
fore-head) sexed by the collectors as a female. 
Shelley (1. c.) on the contrary, says that the adult female 
does not differ from the adult male, but amongst the 
numerous specimens enumerated in the Catalogue, there is 
only a single female (specimen c’) mentioned as adult, 
thus with yellow fore-head, while all the other numerous 
authentical females are considered to be immature. 
The mentioned two »females” in the Leyden- and in 
British Museum are, in fact, the only specimens in fall 
color which are mentioned to be females, while in littera- 
Notes from the Leyden Museum, Vol. X XI. 
