310 
Lord Tweeddale on Birds from 
Sharpe (/. c .) has recently bestowed a new title, problematicus, 
on the Bornean form, giving as its distinctive character the 
black-centred under wing-coverts. 
94. Henicurus frontalis. 
Enicurus frontalis, Blyth, J. A. S. B. 1847, p. 156, “ Ma¬ 
lacca;” Elwes, Ibis, 1872, p. 259, t. ix. 
Hitherto only recorded as inhabiting Malacca. Closely 
allied to H. leschenaulti, but of smaller dimensions. In one 
of Mr. Buxton's examples the white tips of the fourth pair of 
outer rectrices overlap the black portion of the third outer pair. 
In another individual the fourth pair is much shorter, and 
the white bars on the tail appear as represented in Mr. Elwes's 
plate. Both birds are otherwise alike and in full plumage, 
the frontal plumes being much developed and fully equalling, 
if not exceeding, the frontal crest of Javan H. leschenaulti. 
In all Ningpo examples of fully plumaged specimens of H. 
leschenaulti (E. chinensis) I have examined, the outer pair of 
tail-feathers are about an inch shorter than the second pair, 
whereas in typical (Javan) H. leschenaulti , the outer pair 
equals the next pair; and this holds good in individuals from 
the Dafla hills and Tenasserim. The Javan bird is also con¬ 
siderably smaller than the Chinese species. 
95. Calobates melanope. 
Motacilla melanope, Pallas, It. iii. p. 696 (1776). 
Motacilla bistrigata, Raffles, t. c. p. 312, “Sumatra" (1821). 
96. Budytes viridis. 
Motacilla viridis, Gm. S. N. i. p. 962 (1788). 
97. CORYDALLA MALAYENSIS. 
Anthus malayensis, Eyton, P. Z. S. p. 104, “ Malacca." 
(?) Anthus hasseltii, Temm .; Schlegel, Handleiding Dierk. 
i. p. 263, “Java" (1857). 
Alauda pratensis, Linn., apud Raffles, t.c. p. 315, “Su¬ 
matra," nec Linn. 
One Sumatran example is in the collection, and does not 
differ from the common Malaccan C. malayensis. Count 
Salvadori has suggested that C. hasselti = C. malayensis; but 
