145 
margin 2 fissures slightly removed from each other, 
rather short and oblique. 
6th joint. On the anterior side near the apex 
just above the apophysis a lyriform organ consisting of 
but 6 rather long fissures, less regular, however, and 
not so beautifully curved as in Pandinus, chiefly an- 
swering to the lowest and most vigorously developed 
part of the organ in this genus. — On the posterior 
side close to the apex a little above the middle 1 single, 
very long, longitudinal fissure. 
Maxillary palpi. 
2d joint. On the apical margin of the upper side 
a little behind the apophysis a row of c. 11 tiny fissures, 
rather removed from each other. 
38d joint. On the outside near the apical margin 
below the upper apophysis 8 fissures of middle length, 
and above the lower apophysis 2 similar longitudinal 
fissures. 
This list states, that the chief difference between 
Androctonus australis and Pandinus cyaneus is, that 
the latter form possesses an organ with some fissures 
on the posterior side of the 2d joint of the legs, 
besides the remarkable organ at the basis of the 4th 
joint, while Androctonus is devoid of both these organs. 
I consider it evident, from the proceeding, that the 
lyriform organs exist on the legs and probably also 
on the maxillary palpi of all Scorpions. — It has been, 
however, no part of my plan to study their occurrence 
in the numerous genera. 
B. Tactile Hairs. 
Gaubert informs us (op. cit. p. 45) that he has 
found 2 rows of »poils sensitifs« on the last but one 
joint of the legs of Buthus australis; these hairs being 
Entom. Medd 4 B. i 10 
