Vol. IX, No. 10.] The Limestone Caves of Burma. 419 
[V.8.] 
supply to insects of the sub-family nine which 
have enormously long and very sensitive ante ti 
gerous specimens of 8, sieeraiioe se to have 
been pees “although Gravely made a special search for them 
and obtained a number of specimens which appear to be 
mature. | — the species breeds during the rains, as do 
Stygophrynus cerberus, Simon, 
Simon described this species from specimens obtained in 
caves in the neighbourhood of Biserat in the Siamese State of 
Jalor (Proc. Zool. Soc., 1901, p. 76). 
It is much more abundant than the Moulmein species, and 
is larger, darker in colour, and more heavily built. It is known 
to breed in May and June, the female carrying her eggs in a 
sac covering the lower surface of the abdomen as in other 
species of T'arantulidae. It resembles the Tenasserim species 
in its habits; both sexes sit on the walls of the caves in total 
darkness, with the femora of the antenniform legs crossed over 
their backs; they feed on the Locustid Diestrammena annan- 
dalei, which they catch with their arms, in spite of the fact 
that the insect is very active and is cons tantly feeling for the 
approach of enemies with its enormously long antennae, 
Sections of the eyes have shown them to be pigmented 
and apparently well oe but it is sindbis whether 
they are sensitive to light or n 
Catagius pusillus, Thorell. 
Fea obtained the type of this species in the Farm Caves 
(Ann. Civ. Mus. Genova [2a] VII [XX VIT] 1889, p. 531). 
Gravely has since obtained other specimens from the same 
place and from the Buddha Cave at Dhammathat. They live 
under stones, especially in the large Farm Cave, at the end 
furthest from the entrance; one or two immature specimens 
were found under stones in a crevice on the outside of the 
rocks. No ovigerous specimens have as yet been seen. 
The antenniform legs are unusually variable in length; as 
a rule their femora are about twice as long as the carapace is 
broad, as in non-cavernicolous species; .but in one or two speci- 
mens they are about three times as long as the carapace is 
broad, i.e. very nearly as long, in proportion to the size of the 
body, as in ieee cavernicola. 
In addition to the Pedipalpi, a species of scorpion of the 
genus Chaerilus (stated to be new but not described) is recorded 
by Ridley from the Batu Caves; while three kinds of appar- 
1 At k loakt one of them contains ova, apparently ready for extrusion. 
