150 SOME CHINESE VERTEBRATES. 
NYCTICORAX NYCTICORAX NYCTICORAX (Linné). 
Nine specimens, young and adults, both sexes, Hupeh and Changshowhsien, 
eastern Szechwan, spring, and summer. 
4 
BUTORIDES JAVANICA JAVANICA (Horsfield). 
Three specimens, adults of both sexes, Ichang, Hochiaping, and Yangchia- 
tamiao, Hupeh, spring, and summer. 
ORDEOLA BACCHUS (Bonaparte). 
Seventeen specimens, young and adults of both sexes, Ichang, and Hungtze- 
kow, Hupeh, and Omeihsien, and Chiachianghsien, western Szechwan, spring, 
summer, and autumn. 
BuBULCUS COROMANDUS (Boddaert). 
Eleven specimens, young and adults of both sexes, Hungyahsien, and 
Omeihsien, western Szechwan, summer, and autumn. 
IXOBRYCHUS SINENSIS (Gmelin). 
Two males, Ichang, Hupeh, September, and October. 
NANNOCNUS EURYTHMUS (Swinhoe). 
Eighteen specimens, young and adults of both sexes, Ichang, Hupeh, and 
Washan, and Omeihsien, western Szechwan, summer, and autumn. 
DuPETOR FLAVICOLLIS (Latham). : 
One young female Ichang, Hupeh, October 3, 1907. 
BoTauRUS STELLARIS (Linné). 
Seven specimens, both sexes, Ichang, Kunganhsien, Hupeh, and Chang- 
showhsien, Szechwan, autumn, and winter. 
These specimens show as is usually the case in a series of skins of the bittern, 
that there is considerable variation in size and that while the females are smaller 
than the males, individual variation is still very great. 
