228 ENTOMOLOGISK TIDSKRIFT 1897 
rally plumose and extend behind and downward beyond the 
mouth. The third joint and the oblong excrescence proceeding 
from the inner side of the second joint form a pair of pinchers; 
they are provided with a row of strong, slender and pointed 
teeth? which are placed quite close together; these teeth are turned 
somewhat forward towards the extremity of the joints, and a little 
backward (or downward, if we suppose the second joint of the 
antenna to turn forward horizontally), and they catch obliquely 
in between each other when the pinchers close. — The levator 
muscle of the basal joint of this pair of limbs is very long, being 
attached to the posterior part of the dorsal carapace of the head; 
its depressor is much shorter as it proceeds from the anterior 
end of the dorsal carapace just behind its anterior angle®. 
The remaining five pairs of limbs (figg. 11, 12, 13, 14, 15) 
we can describe collectively as they show great mutual simila- 
rity of structure, being developed only as organs of motion, ex- 
cept the third pair, which are provided with sensory organs as 
well; moreover, all pairs are articulated very near to the lateral 
margins of the body, the two first pairs even to the margin it- 
self; the second pair, which corresponds to the »maxillæ» in the 
other Arachnida, consist of nine joints, the third of twelve’, 
the fourth and fifth of seven, and the sixth of eight. In their 
appearance and mutual relations the different joints of the wal- 
king limbs (the legs) showing rather considerable deviations from 
those of the other Arachnida, it is very difficuit to conclude from their 
shape alone, how the joints are to be interpreted. In so small 
and so slightly chitinized an animal as the Aoenenza of course 
it is impossible to see by the flexion of the different joints in 
what plane the movement takes place, yet this is the only means 
of ascertaining the fact with absolute certainty. In a tolerably 
large animal seen through a magnifying glass, we can indeed make 
rei the, specimens examined by us there are nine teeth in each row. 
8 These muscles are placed quite similarly in Opiliones Laniatores, where 
however, the musc. levatores extend to the posterior end of the undivided ce- 
phalothorax. So we can refer, to the description hereof given by one of us 
(WILLIAM SORENSEN) in »Naturh. Tidsskr. 3 R. Bd. XII, Kjöbenhavn 1879, 
Mabe 1, ters: 
9 In this (as will be seen further on) the difference from Grassi's state- 
ment is only apparent. 
