175 
D. Taetile Hairs. 
On all 4 pairs of legs at the apex of tibia im- 
mediately in front of the dorsal edge there is a com- 
paratively rather large and deep depression, out of which 
mounts a very conspicous, semiglobular eminence with 
a hole in the centre. From this projects a long and 
very fine tactile hair not filling out the aperture by 
far, and enters into a smooth, jar-like cave with a 
narrowed outlet. Inside the jar the hair appears to be 
articulated. It is easy to find these 4 tactile hairs, and 
I can find none more neither on the limbs nor on the 
palpi. They are most likely characteristic for Thely- 
phonoide Thor. (op. cit. p. 367); I leave it to the 
future to decide, if the are also found in Schizonotoidce 
Thor., a family unfortunately completely unknown 
to me. 
E. Luminous Organs? 
Systematic authors, as Stoliczka, Thorell, Tarnani, 
mention light yellow spots on the exterior side of the 
last abdominal segment in the family Thelyphonoidee 
Thor. Most of the species have but 1, some (genus 
Tetrabalius Thor.) have 2 on each side. Thorell, the 
only author who has given really good descriptions of 
some species of Thelyphonus, uses the number of the 
spots as a character for the genera, and their shape 
as characters for the species. Tarnani mentions besides 
spots on the lower side of the rings of the telson (caudal 
file). These spots are found, no doubt, in all species, 
but their development is partly most different on the 
different joints of the same animal, and partly the shape 
and size of the spots are different according to species 
on the corresponding joints. In an adult female of Tr. 
indicus Stol. the telson is consisting of 29 joints, the 5 
