218 
I have found hitherto unknown organs (Tab. V, fig. 14, 
o). Their appearance “and structure are exactly an- 
swering to the above mentioned organs situated in Scor- 
piones on the upper side of the last tarsal joint, being, 
however, different in as much as the single organs, in 
Scorptones collected in 1 or 2 groups, are spread here 
on both fingers on the proximal half of the side, turning 
towards the median plane, and slightly backwards on the 
distal portion of the interior side of the hand. 
These organs are probably found in a series of 
species of the sub-genus Chernes. I have also found 
them in Chelifer granulatus, but not more than 2, both 
on the movable finger. I have, however, sought them 
in vain in Chiridium and Garypus, and I do not 
believe they are having any; Obisrum is most decidedly 
devoid of them. 
Other sense-organs are unknown, excluding the eyes. 
D. Remarks on the Systematic. 
In Arthrog. Dan. p. (517—29) I have discussed the 
value of the generic characters hitherto made use of 
and of some specific characters, besides I have given a 
detailed representation of some new characters for 
families, genera and species of this order, and p. 551—34 
is found a »Conspectus systematicus« of the then 
described main genera. Balzan has later on, not being 
acqainted with my treatise, described in his 2 quoted 
works highly interesting new genera, necessitating altera- 
tions in the system set up by me 
In his last work Balzan has divided the orders into 
2 sub-orders, solely according to the one sharp character, 
if »serrula« on the movable finger of the mandibles is 
coalesced to its complete extent with the finger, or if 
it is free at the distal end (this division answers fully 
