142 
of the common large, East-Indian species Pandinus 
cyaneus C. Koch for my study, thinking that a good 
magnifying-glass would be sufficient at least to a prelimi- 
nary examination of such a large dark-coloured form, 
and I succeeded without any great difficulty to find on 
each leg no less than 9 groups of these organs. Now, 
Pandinus (see Thorell, op. eit. p. 12) is belonging 
to quite another family than Androctonus (Buthus) ; 
Thorell even places the families concerned in each end 
of his system; therefore I subsequently undertook an 
examination just of Andr. australis L. with magnifying- 
glass and microscope. The result is shown in the 
succeeding; but I feel obliged directly to state, thas as 
I have not found any important differences in the 
number nor in the quality of the organs on the 4 diffe- 
rent pairs of ambulatory limbs, I shall treat them all 
together. 
1. Pandinus cyaneus C. Koch. 
Ambulatory limbs. 
URE ron On the anterior side near the 
upper side a little above the apophysis of the apical 
margin a group with 3 or 4 fissures, and behind these 
a longer longitudinal fissure, all slightly apart from 
each other (Tab. II, fig. 1). On the apical margin of 
the posterior side above the apophysis 5 or 6 longitudinal 
fissures a little removed from each other, the uppermost 
one being the longest, as well as a few (c. 5) very 
short fissures at the lowest end (Tab. II, fig. 2) of the 
group. 
3d joint. On the posterior side close behind the 
apex 1 or 2 long and 2 or 8 short fissures in a little 
group. 
4th joint. On the anterior side at the base close 
outside the basal apophysis a most remarkable, curved 
