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In the Latin »Conspectus« (p. 531—84) in Arthr. Dan. 
I have made use of several more characters, considering, 
however, these which are omitted here as being not so 
important and too uncertain, as the existing descriptions 
and drawings af Cheloneth', as a rule, do not exhibit 
the concerned features, at least not in such a way that 
they can be picked out and used as generic characters. 
Here I shall only refer to, if tibia always is longer than 
tarsus in Cheliferide, shorter than tarsus in Gary- 
pide, if the shape of the abdomen can provide a good 
character between Chiridiine and Cheliferine. After 
the study of some American species I do not approve 
of the old character, taken from the existence of sternum 
in Garypide and its absence in Cheliferide, as 
in a large Chernes I have found a sternum just as 
developed as in an Olprum | presume besides that on 
a large material of Zmictenodactyli several good 
characters for its groups may be found in the form of 
femur on the posterior pair of legs, in tarsus and 
perhaps above all in serrula, lamina interior and »fla- 
gellum« ; it is also necessary to settle if these characters 
coincide with the number of the eyes. 
J. Specific Characters. 
In Arthr. Dan. I have called attention to a couple 
of these characters which have but partly been used 
by earlier and later authors, and therefore I shall 
shortly repeat them. 
1) Arolium renders in the fam. Garypide an 
excellent specific character, being in some species much 
longer, in others much shorter than the claws. It 
appears to be shorter than the claws in all the other 
Chelonethi. 
2) The large chelæ of the maxillary palpi show a 
