wel 
large transverse fissure; below on the exterior side 
straight above the lower apophysis 3 longitudinal fissures. 
4th joint. On the interior side towards the basis 
of the large process a rather long transverse fissure. 
5th joint. On the upper side a little behind the 
basis of the large process a rather long transverse 
fissure; at the corner between the process and the 
distal margin of the joint 1 slighter longitudinal fissure; 
towards the middle of the upper side of the process 3 
spread, short longitudinal fissures. On the interior side 
close to the lower sider at the apical margin 1 rather 
long longitudinal fissure; on the limit between the lower 
and the exterior side at the basis 2 rather long transverse 
fissures. 
6th joint. All around, partly a little removed 
from the basis, partly towards the apex, some spread, 
middle-sized transverse fissures; close to the basis on 
the upper side one shorter and some very short longi- 
tudinal fissures not much removed from each other. 
Some of the before mentioned very short fissures 
on the 2d joint, going in all directions, are moreover 
found spread on all the joints. 
Owing to the enormous thickness of the maxillary 
palpi, and a magnifying-glass not being sufficient, it is 
most difficult to give a complete list of the more 
characteristic fissures, as it is not possible to examine 
the palpus in its entirety with the compound micro- 
scope on account of its thickness and shape. It is 
possible only by dividing every joint into several parts 
and examining each separately, and this manner of 
proceeding has been attempted here. The palpus must 
beforehand have been prepared with caustic potash; 
I shall come back to this question in the concluding 
remarks of this treatise. 
