328 
small, thin wooden wedge (cut for instance of the margin of a match - 
box) under the middle of the back edge of the glass-cover in order 
to prevent this from crushing or at least depressing and deforming 
the animal. By moving the wedge forward or backward the glass- 
cover is easily arranged so that it either only touches the animal 
or presses it as much as desired, and when the animal by the help 
of a hair is arranged in a direction at right angles to the length 
of the object-glass, it can be rolied round by slight pushing of the 
glass-cover to the left or to the right side and thus become exa- 
mined from all sides without damaging it.“ 
A few remarks may be set forth on the figures. The camera 
has been used as much as possible, but in many instances I found 
it necessary to measure some of the setæ and hairs when their di¬ 
rection prevented a real judgment of their relative length in the 
position drawn by aid of the camera, and the figure had to be cor- 
rected by construction based on such measurements. The flagella 
of the antennæ were often much curved, and in this case they were 
exceedingly difficult to draw correctly. I rolied the animal and 
measured the flagellum in question when it had arrived to a hori- 
zontal position: sometimes it was even necessary to discover a 
casual insignificant mark on a flagellum and to measure the portion 
on each side of this mark separately in order to obtain a thorough 
result. If it shall be possible to describe and figure the species of 
the Pauropoda so that other Zoologists shall be able to recognize 
them with certainty, such circumstantial precautionary measures must 
be taken. 
III. On the Geographical Distribution of the Order and the 
Number of its Species. 
Hitherto it was probably generally believed that the order 
Pauropoda is a very small group. The proportionally large number 
of new species of Pauropodidæ described in this paper will shake 
this opinion, and I consider it to be one of the more important 
