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of the legs and the maxillary palpi, as well as on the 
mandibles and the 12th abdominal segment, that besides 
the entire body, the mandibles, maxillary palpi and 
some of the joints of the legs are furnished with spread, 
mostly very short fissures. These latter fissures appear 
as pore-channels on the thick integument of the body, 
the outlets of which have become fissure-shaped, with 
a slight dilatation in the. centre. The dilatation lies, 
however, in the longer fissures placed in groups a little 
removed from the proximal end, in the shorter fissures 
close to or in the centre (Tab. II, fig. 1 and fig. 2), 
and consequently as in Phrynide. 
? C. The Eyes. 
The usual description is that the animals have 2 
centre-eyes and 3 eyes in a group on each side. Marx - 
has in the year 1886 pointed out (op. cit.) that in an 
American species there are found 2 small eyes between 
the 3 large lateral eyes, and later it is used asa 
specific character by Tarnani, if »Nebenaugen« are found 
or not. I believe they are present in all species, they 
can often with certaintv be recognized under a strong 
magnifying-glass, but even that being impossible, they 
are easily seen if the lateral eye-protuberance with the 
surrounding integument is cut off and examined from 
the interior side with the light falling through. Tab. 
III, fie. 3 represents the 5 lateral eyes in Th. indicus 
Stol., and I shall but add that in proportion to the 
other eves their position differs a little according to 
the species, but owing to their littleness these differences 
will, as practical characters, not easily be of any use 
by the definition of the species. 
