Organs and Characters in different Orders of 
Arachnids. 
By 
Dr. H. J. Hansen. 
(With Tab. II—V). 
Introductory Remarks. 
Several years ago I had already made observations 
on some’ new, or little known organs in Pedipalpi, but 
a publication was constantly postponed. In October 
1892 I read the voluminous work of Gaubert, quoted 
in the following; I was struck by a complete want of 
reference to the Danish literature, and in examining 
some large specimens of Phrynidce and Scorpiones 
I soon discovered that his statements on the occurrence 
of the so-called lyriform organs were very deficient. 
This gave me the wish to spend some time on the 
study of these and several other organs in the higher 
orders of Arachnids. 
The study of many publications on the anatomy 
and the embryology of Insects and Arachnids has shown 
me that but few of the authors of those essaies are 
aquainted with any greater number of genera (and 
species) of the order in question, that they often do not 
know the characters that are pointed out as being 
