1905.] oN SNAKES FROM JAPAN AND THE LOO CHOO ISLANDS. 511 
it secures most of its food from the activity of the anemones in 
capturing small organisms, these being afterwards abstracted by 
the crab; (2) a possible protective influence against enemies 
by the ejection of stinging-cysts as a result of the irritation of 
the polypal tentacles. The only possible advantage to the 
anemone would seem to be that of being carried about by the 
erab, whereby it may be brought into contact with more prey, 
against which is the disadvantage of having much of its food 
abstracted by the crab. 
2. Notes on a Collection of Snakes from Japan and the Loo 
Choo Islands. By Captain F. Watt, C.M.Z.8., Indian 
Medical Service. 
[Received August 28, 1905. ] 
I am indebted to Mr. Alan Owston, of Yokohama, for the 
opportunity of examining a large number of Snakes collected by 
him in Japan and the Loo Choo Islands. Of a total of 513 
specimens, 461 are Land Snakes; and the special interest of the 
collection lies in the extensive and representative area in which 
the specimens have been captured, for besides a large number 
obtained from Japan itself and many from all the important 
islands of the Loo Choo Group, examples have been obtained from 
the two islands, Tanega and Yaku, interposed between Japan and 
the Northern Loo Choos. They are distributed as follows :— 
( Yuzo. 
1. Ancistrodon blomhoffit. (1) 1 
Hownpbo. 
1. Tropidonotus vibakart. (14) ) 
2. - tigrinus. (53) 
3. Dinodon japonicus. (1) 
4. Coluber conspiciilatus. (18) 165 
5 »  climacophorus. (11) 
6.- ,, guadriwirgatus. (30) 
7. Ancistrodon blomhoffit. (38) 
TanEeGA ISLAND. 
Japanese. 
| 
. Tropidonotus tigrinus. (1) 
2. Coluber conspicillatus. (1) 3 
3. Ancistrodon blomhoffit. (1) 
Yaxku IsLanp. 
. Tropidonotus tigrinus. (2) 
. Coluber quadrivirgatus. (2) 
Ancistrodon blomhoffii. aD) 
Lachesis okinavensis. (1) | 
co ee 
_— 
He Oo bo 
