44 G. 0. SABS. [No. 7. 



at a short distance from the ocellus, are rather small, not reach- 

 ing by far to the tip of the rostrum, and of cylindrical form, or 

 taper somewhat distally. They are furnished anteriorly, a little 

 beyond the middle, with a small knob-shaped projection, bearing 

 a delicate bristle, and at the tip the usual fascicle of sensory 

 filaments originate, some of them much longer than the rest. 



The antennae, as in all other known Lynceidae, are compara- 

 tively small, the scape consisting of two sharply defined seg- 

 ments, very movably jointed together. The branches are about 

 as long as the scape and narrow cylindrical, both composed of 

 but 3 joints, the first by far the largest, longer even than the 

 two others taken together. The upper branch has only 3 na- 

 tatory setae, issuing from the tip, whereas the lower exhibits a 

 4th seta affixed to the 2nd joint. All the setae are very slen- 

 der, distinctly biarticulate, and provided with exceedingly deli- 

 cate cilia. 



The labrum projects inferiorly as a very large compressed 

 lamella, well-nigh securiform in shape, and exhibiting posteriorly 

 a sharp corner. The structure of the mandibles and maxillae I 

 have not closely examined, but they do not seem to present any 

 essential difference from those parts in other Lynceidse. 



The structure of the legs would also appear on the whole 

 to be that characteristic of the family. As usual, those of the 

 first pair are the largest and exhibit anteriorly a sharp geni- 

 culate bend, beyond which the anterior edge is beset with small 

 tufts of hair; the terminal spines are however not very strong, 

 less so at least than in most other Lynceidse. The 2 posterior pairs 

 have, as usual, rather large rounded lamellar appendages (exo- 

 podites), by the rythmical motion of which the renewal of the 

 water within the shell is effected. 



The tail (fig. 3) exhibits a form deviating considerably from 

 that in any of the known European Lynceidse. It has a rather 

 clumsy shape and exhibits in the middle a peculiar bend, not 

 found in other species. Hence, the ventral edge is deeply sinu- 

 ated above the middle, and the opposite part of the dorsal edge 

 forms a strongly projecting angular prominence, located immedi- 



