414 
are biramous, but the two branches of the same hair are excee- 
dingly different from each other as to length and shape, and the 
hair on the coxa is partly very thick and very different from that 
on the trochanter. Furthermore, the tarsus has a seta on the lower 
side somewhat before the end, and this seta is not found in the 
other families. 
The „eyes“ are well developed, occupying, as far as could be 
ascertained, a small part on the dorsal and a somewhat larger part 
on the ventral surface of the head. — The antennæ (fig. 4 a) are 
rather similar to those in the fam. Brachypauropodidæ, but the 
unringed sbasal part of the flagella is somewhat longer and the 
stalk of the globulus is much longer; I am, liowever, unable to 
say if these features exist in all members of the family, and at 
any rate such characters will be rather unessential. — In my species 
the tactile setæ are short, the two anterior pairs (fig. 4 b) are longer 
thau the posterior ones (fig. 4 c) and the third pair (fig. 4 d) is the 
shortest; but the descriptions of other species do not aliow one to say 
much on these organs. — The anal segment (fig. 4 g and 4 i) is well 
developed: in my species it possesses three pairs of dorsal setæ, 
styli, three pairs of ventral setæ and an anal plate, which is excee- 
dingly curious (fig. 4 h and 4 k). But the study of the anal seg¬ 
ment being neglected by all authors it is impossible to say any- 
thing on other species. 
That the family must be divided into two or more genera is 
certain: my species has no metatarsus in any pair of legs, while 
a metatarsus is sharply defined in seven of the pairs in Eur. spi - 
nosus Ryder and at least in the same pairs in Eur. ornatus Latz. 
But the genus Trachypauropus Tomosvary and the two other ge¬ 
nera proposed by Cook have evidently been established on accidental 
features, without any real examination of the animals. It is a pity 
that superficially writing authors trouble the natural development 
of zoology by new divisions and new names without adding solid 
observations of valuable new facts to our knowledge or without 
elucidating any essential point by sound thinking. I do not possess 
