224 BIRDS OF THE 
This species is the Bornean representative of M. flavi- 
ventris- from the Continent, from which species it differs 
by its smaller size and the want of black on chin and throat, 
165. Iaidia cyaniventris. 
Pycnonotus cyaniventris Blyth, J. A. S. Beng. XI, p. 792 (1842). 
Ividia cyaniventris Bp. Consp. I, p. 260; Bittik. N. L. M. 1895/6, 
p. 249. 
Brachypus poliopsis Bp. Consp. 1, p. 264 (ex. Miill. MS. in Mus. 
Lugd.). 
Ixidia paroticalis Sharpe, Ibis 1878, p. 418; id. id. 1879, p. 256. 
Rubigula cyaniventris Sharpe, Cat. B. Br. Mus. VI, p. 169. 
Rubigula paroticalis Sharpe, Cat. B. Br. Mus. VI, p. 170; Everett, 
L. B. Born. p. 115; Hose, Ibis 1898, p. 391; Sharpe, Ibis 1893, 
pp. 547 and 551; id. Ibis 1894, p. 5438. 
Adult male and female from Mount Liang Koeboeng, 
where the species is found in the undergrowth of the high 
forest; also from Long Bloe. — Iris dark brown or gray, 
bill black, feet pale blue, soles ochre. = The above-men- 
tioned two birds are similar in every respect to four spe- 
cimens of R. cyaniventris from Sumatra and one from Ma- 
lacea in the Leyden Museum, so that I am absolutely 
unable to find distinguishing characters. Those mentioned 
by Sharpe in his above-quoted Catalogue do not hold at 
all in the specimens which I have before me. The larger 
size of the Bornean specimens is mentioned by Sharpe as 
the strongest argument for a specifical separation, but the 
following measurements will show that this argument does 
not hold with the specimens in the Leyden Museum. 
Wing. Tail, Tarsus. Culmen. 
Borneo (R. paroticalis) 2,7—2,8 inches; 2,0 ; 0,6 3 0,55. 
Sumatra (R, cyaniventris) 2,8—2,9 »; 2,2—2,5; 0,55—0,65; 0,6. 
Malacca (> > ) 3,05 ; 2,4 3 0,6 ; 0,6. 
Hab. Tenasserim, Malay Peninsula, Sumatra and Borneo, 
where it was hitherto only recorded from Sarawak. 
Notes from the Leyden Museum, Vol. X XI. 
