530 Records of the Indian Museum. [Vo.. XI, 
It has already been mentioned that Phrynichus ceylonicus, 
variety pusillus, is a much more thirsty animal than P. ceylonicus, 
s. sty. When thirsty, however, specimens of both species behave 
much alike if water is sprinkled into their cage. As long as small 
drops only are met with these are caught up between the spines 
of the hand, whose arrangement, when the hand is closed, is admir- 
ably adapted for this purpose. ‘The drop is conveyed by the hand 
to the chelicerae which suck it off with movements like those of 
mastication. When, however, a small pool is found on a leaf or 
other receptacle the chelicerae are inserted directly into this and 
with the same movements proceed to suck it up. Once when 
I attempted to give water to a specimen of P. ceylonicus, variety 
pusillus, which did not want it, a drop that had been placed on 
the chelicerae was drawn off into one of its hands, and flung aside 
by a sudden movement of the arm. I have not seen Charinides 
drinking. 
The brushing up of the other appendages by the chelicerae 
may often be seen in all species. I am inclined to think that this 
is sometimes done chiefly for the sake of the moisture upon them, 
small though this must be; at least the evident relish with 
which it is sometimes done after water has been sprinkled about, 
and before the creature has found any separate drops, emphatically 
suggests this. When the feet have to be brushed they are sup- 
ported in position by the hands. The great care which is taken 
to keep the tips of all the appendages free from dirt is very 
striking. In the case of the second appendages this is probably 
due to the presence on the two terminal segments of an elaborate 
system of spines, clubbed hairs and pits, which may perhaps con- 
stitute an organ of taste or smell, functioning as a test of the 
suitability for food of anything that is captured. In the case of 
the feet it is probably necessary for the pulvillus in Charintdes, and 
the pulvillus-like pad in Phrynichus, as well as the claws, to be kept 
perfectly clean if they are to be used effectively; and it is not 
unlikely that tactile organs may be concentrated in this region. 
That the antenniform legs should be kept clean, not only at 
the tip (as are the other appendages), but also throughout a con- 
siderable part of their length, is clearly necessary on account 
of their great service to the animal as feelers. When Phrynichus 
moves sideways (at it usually does) these legs are extended out- 
wards, their mobile extremities feeling cautiously about in all 
directions; when it moves forwards they are extended forwards 
somewhat as in the Thelyphonidae; and 1} have seen them, too, 
when the animal was at rest, extended straight outwards and 
then slowly rotated, the one forwards and the other backwards, so 
as to sweep as large an area as possible round the body. When 
undisturbed their position is rarely very different from that shown 
in Spolia Zeylanica, VII, p. 43, fig. A. 
To what extent the sense of vision has been replaced in these 
creatures by senses localized in the anteniform legs I am unable 
to state with certainty. When a specimen is first found and 
