90 CAPT. F. WALL ON THE [ Feb. 3, 
to whitish on labials. A light temporal streak. Belly whitish, 
with or without sparse lateral mottling, except beneath tail 
where this is abundant. 
31. DINODON SEPTENTRIONALIS. China, Formosa, Himalayas ? 
32. ZAocys DHUMNADES. S. China, Chusan.—A very common 
snake about Shanghai and evidently throughout the Yangtse 
Valley, for there are many specimens in the Siccawei Museum. 
I have encountered it frequently, and consider its generic name 
most apt, as it is very active, swift, and clever to elude capture. 
I saw as many as four in a day’s ramble in the spring, when 
batrachians were clamouving in the water engaged on matrimonial 
matters. The snakes were each coiled up on the banks close to 
the water, and in low vegetation, awaiting the excursion of some 
unwary individual. One I saw coiled up similarly two yards or 
so away from two toads (Bufo vulgaris), whose curious behaviour 
it was that first attracted my attention. In spite of every care 
my presence was always detected by the snake before I was 
aware of its presence, and it immediately made off in great haste 
for the water, and disappeared among the roots of the aquatic 
vegetation. On one occasion in the summer I watched one for 
some time in a strip of grass in the open, myself unobserved ; 
and it was most interesting to notice the method and care 
with which it beat the patch of grass like a harrier, prying into 
every recess in the ground or tussock that might harbour some 
possible prey. I have seen Chinese jugglers with this snake in 
their stock in trade, and I believe that it is this species that 
is even now occasionally met with in houses in the heart of 
the town of Shanghai. On October 3rd, 1901, I captured a 
young one recently hatched in camp which closely resembled the 
adult in colouring. Loreal: in one specimen there are two 
superposed shields on one side. Temporals: a single anterior 
in one specimen on one side. Anterior chin-shields in contact 
with four lower labials on both sides in one specimen. Ventrals 
190-199. Subcaudals 96-119. 
33. ZAMENIS KorROS. Sikkim Himalayas, Assam, Burma, 
Siam, Malay Peninsula, Sumatra, Java, W. Yunnan, S. China, 
Hainan, Hongkong, Formosa (City Hall Mus.).—I obtained one 
specimen on the mainland opposite Hongkong. There are two 
specimens in the Siccawei Museum. Loreal single on both sides 
in one specimen, three on one side in one specimen. Subcaudals 
100-116, 
34, ZAMENIS MuUcosUS. Southern Asia from Transcaspia to 
Malay Peninsula, Java, 8. China, Hainan (City Hall Mus. & Herz), 
Hongkong, Formosa, Chusan (Cantor & Giinther).—I obtained 
two examples from Stonecutter’s Island in Hongkong Harbour, 
and three from the mainland opposite Hongkong. There are two 
specimens in the Siccawei Museum. Labials nine, the fifth and 
sixth touching the eye in one specimen on one side. 
