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which at least the one form possibly may be a sense- 
organ. 
1) Nemastoma. 
Systematic authors state that the palpi in a series 
of species of this genus are furnished with clavated 
hairs. I have studied them in Nem. lugubre O. F. 
Miller. They are situated between the common seti- 
form hairs and found on the lower side of the 38d, 
4th and 5th joint, on the distal half of the whole 5th 
joint and on the entire 6th joint (Tab. III, fig. 15). They 
are much shorter than the other hairs, and much more 
slender, straight and gradually getting finer towards the 
apex that is ending in a globe, on the upper side of 
which traces of a continuation of the hair is to be 
noticed; the globe is largest on the hairs sitting on the 
upper side of the penultimate joint. The globe is hollow 
and the exterior wall seems to be pierced with small 
holes (Tab. IV, fig. 7, b); the hair itself is hollow and 
lengthens into the globe, where it takes the shape of a bow] 
(fig. 7, a) the lateral margin of which is in all probability 
the united with the interior surface of the globe. That is 
what I mean to have seen with my, not very modern, 
microscope, but I am quite unable to set forth any 
reasonable hypothesis about their significance. It is just 
possible that they are a kind of sense-organs, but in all 
cases they seem to differ much from those known 
hitherto. 
2) Phalangium parietinum De Geer. 
In my treatises quoted later on under Chelonethi 
I have shortly described and figured some remarkable 
tufts of hairs, found in the male of this species on the 
lower side of metatarsus and some of the proximal joints 
of tarsus of the 3 foremost pairs of legs, but are lacking 
