109 
the chitine of the depression is perforated by 5 channels 
rather spread from each other (Tab. II, fig. 6, 1), and 
that they are mutually very different in width, the widest 
10 or 15 times larger than the common pore-channels 
(p). These holes have inside almost a circular section, 
little by little, however, becoming very flat towards the 
exterior side, showing themselves on the exterior side of 
the chitine as the common narrow fissure with a small 
dilatation in the centre. I have also tried on the figure 
to reproduce the shape of this channels perforating the 
chitine, in the way the are seen, with the light falling 
through. Undoubtedly we here have lyriform organs in 
a somewhat modified shape. 
On the lower side of the ist joint”) a little behind 
the articulation between the Ist and 2d joint (Tab. II, 
fig. 8, b) a small group of tiny, stripe-like depressions 
is seen under a magnifying-glass. This portion is drawn 
in fig. 7 (the enlargement is 24/2 times smaller than by 
fig. 6). The figure shows 15 fissures (and a couple of 
common pore-channels) of very different size and very 
irregular position; the structure is the same as in the 
above mentioned organs on the 2d joint. The size of 
the fissures may be estimated by the thickness of a few 
neighbouring sete, the basal portions of which are seen 
in the figure (s). 
I have not been able to find more than these 2 
remarkable groups. I have also found them in Galeodes 
orientalis, Rhax annulata? and Cleobis Cube Luc., 
*) In his endeavour to procure as many common characters 
as possible for the orders of the Arachnids Pocock (op. cit. 
p. 10) believes that he has found a basal joint, unknown 
hitherto, which is said to be fused with »the cephalic 
shield.«e — Not being able neither to sanction nor to deny 
it, I make use of the old mode of designation. 
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