Vol. xxxix.] AG 
A large bird: wing varying between 116 and 133 mm., 
and averaging for 34 specimens 122°] mm. 
The under wing-coverts are boldly barred black and 
white. General colour bright rutous-brown. 
Habitat. India, Burma, and Siam as far south as central 
Tenasserim. 
(2) Penthoceryx sonnerati venustus. 
Cuculus venustus Jerdon, Madr. Journ. xiii. p. 140 (1842). 
Type-locality. Malacca. 
The type is probably in the Indian Museum. 
A much smaller bird: wing varying between 98 and 
114 mm., and averaging for 21 specimens only 105°7 mm. 
The general tint is much the same as in sonnerati. 
Habitat. Borneo, Sumatra, Malay Peninsula to central 
Tenasserim. 
(3) Penthoceryx sonnerati pravata. 
Cuculus pravata Horsf., Trans. Linn. Soc. xii. p. 179 
(1822): Java. 
Cuculus rufovittatus Drap., Dict. Class. d’Hist. Nat. iv. 
p. 568 (1823): Java. 
Cuculus fasciolatus S. Mull., Verh. Nat. Gesch. Land-en- 
Volk. p. 177 (1839-44) : Java and Sumatra, 
Type-locality. Java. 
Intermediate in size between sonnerati and venustus, but 
nearer the latter, and probably a larger series would show it 
to be much the same. These birds vary in wing-measure- 
ments between 109 and 111 mm. It is distinguishable at a 
glance from all other races by having the under wing- 
coverts with only the faintest possible indication of bars 
instead of being strongly barred black and white. In 
general colour it is perhaps rather brighter and paler than 
sonnerati, especially below. 
Habitat. Java. 
A Timor bird seems to belong to this race; its under 
wing-coverts are quite unbarred, but its wing only measures 
104mm. + 
