444 Records of the Indian Museum. [Vor. XI, 
margin are obsolete, while on the dorsal margin the first of the 
three long spines is situated in about the middle of the length of 
the joint, asin females of S. cavernicola. ‘This spine is preceded 
by an additional spine about half way to the base of the joint 
and nearly as long as the spine following the distal of the three 
long spines, which terminal spine is fully half as long as the three 
long spines. The granulation of the convex posterior surface 
of both femur and tibia is obsolete. The backs of the hand and 
finger are smooth. The hand is armed above by two spines of 
about equal length and not much shorter than the long spines of 
the upper margin of the tibia; it is armed below by one somewhat 
shorter spine opposite the distal of the two upper ones. The 
finger is armed above with three minute tooth-like spinules. 
The legs are coloured in a similar manner to the rest of the 
body. They appear to have been long and slender, with the 
antenniform legs exceptionally long as in the other species of the 
genus, all of which are known to be cavernicolous. The hind femur 
scarcely exceeds the basal piece of the hind tibia in length by 
more than the length of the patella, which suggests that the 
remaining pieces, which are broken, may have been two instead 
of three in number. 
Stygophrynus cavernicola (Thorell).’ 
The habits of this species have been described from speci- 
mens found, like the type specimen, in the Khayon or ‘‘ Farm”’ 
caves near Moulmein.” The Indian Museum collection includes a 
number of specimens from the larger of these caves, and two from 
a small cave at Dhammathat. The species has been recorded 
from Saigon by Kraepelin.* Kraepelin had, however, insufficient 
material for the determination of specific characters*, and geogra- 
phical considerations render it very improbable that this determina- 
tion is correct. 
The carapace of specimens which are probably adult—no 
ovigerous females of this species ever appear to have been found— 
is about 9°5 mm. broad by 7 mm. long in the middle line. It is 
of a pale yellowish-brown colour, and is finely granular as in the 
preceding species. 
The arms are always slender; in the female the femur is a 
little longer than the carapace is wide, in the male it is nearly 
twice as long. ‘The femur and tibia’are finely granular, with two 
smooth longitudinal bands on the convex posterior surface. There 
4 | Charon cavernicola, Thorell, Ann. Mus. Civ. Genova, XXVII, 1889, pp. 
-542. 
i 4 Fourn. Asiat. Soc. Bengal (n.s.|, 1X, 1914, pp. 418-9. 
® Bull. Mus. Hist. Nat. Paris, 1901, p. 265. 
* This statement is based on an examination of specimens from Mentawei and 
Java, which Prof. Kraepelin showed me in Hamburg. They, too, are distinct and 
Prof. Kraepelin very kindly promised to send them to me for description whenever 
I should be ready to deal with them, a promise whose fulfilment the war has 
unfortunately made impossible. 
