237 
different types, it suffices to take one single form, 
namely the male of Zpeira diademata Clerck. Partly 
this animal has a suitable size, and partly it is exactly 
the species, on which Gaubert dwells most fully (p. 
65—71; a preliminary view p. 64; and the organs on 
the sternum p. 59). He points out altogether 13 
compound organs on each leg and mentions the 
occurrence of some isolated fissures, next several organs 
on the palpi, mandibles and sternum, consequently a 
very considerable number. I have not searched for 
the compound organs on the legs and palpi exhibited 
by him, supposing his representation to be correct, but 
I directed my attention to find organs or fissures, over- 
looked by him, on the abdomen, cephalothorax, mandibles 
et cet. Thus I produce but a supplement to his represen- 
tation, making the remark, however, that of isolated 
fissures he has found on the legs 1 on the lower side 
of the 6th joint, and he writes about the 7th joint 
(p. 64): »Pas organes, cependant on trouve quelquefois 
des cordes isolées«. 
1st pair of legs. On the anterior side towards 
the dorsal side of the longer distal portion of the od 
joint and on the 4th joint very few, tiny, spread 
longitudinal fissures. On both sides from the middle 
and upwards on the dorsal side of the 5th, 6th and 
‘th joint several, spread, short longitudinal and oblique 
fissures, having almost the length of the diameter of 
the insertion of the small sets; the longest are found 
on the distal portion of the 7th joint. This joint 
carries besides on the posterior side and on the lower 
side, close by the distal end 2 good-sized transverse 
fissures placed almost in the prolongation of each other. 
2d pair of legs as the Ist, but besides on the 
posterior side of the 3d joint, almost in front of the 
