606 A New Genus of Minute Pauropod Myriapods. | [ October, 
the, were the parents and consequently that they were sam 
having undergone no change meanwhile. 
The new form, which in several respects differs in a remarkable 
degree from Pauropus, I have called Lurypauropus in reference to 
its great relative width. The antennæ are five-jointed as in Pau- 
ropus, but the proportions of the terminal many-jointed filaments 
are different. These filaments in minute ‘structure are very simi- 
lar to those of the old genus, being composed of saucer-like 
disks, which are superimposed in a linear series and united at 
their centers to each other by delicate but very short pedicels. 
These like the similar filamentous organs of Pauropus, I found 
could be studied very well with a power of 1000 diameters, as 
they measure little over ,1, of a millimeter in thickness or about 
7800 Of an inch. The antennz are inserted close together at 
the front of the head with a very narrow bridge of chitin inter- 
vening between them as shown in Fig. 1. The outer branch 
bears two of the many-jointed filaments, between the bases of 
which arises a pedicel surmounted by a globular or ovoid semi- 
transparent body with linear sepaliform processes clasping it 
(but which are not shown in the figure), much as in Pauropus 
pedunculatus. 
The body is composed, apparently, of six segments ; there isa 
possibility that the head is composed of two, in which case there 
would be seven in all, but the most careful focusing failed to 
reveal more segments than the number stated above. The first 
or head segment is wide and broadly rounded at its anterior mar- 
gin, and overhangs the head like a hood or shield with descending 
bouders, from beneath which the ends of the antennz project for- 
ward in a remarkable manner. The head is partly free, a large 
vacant space appearing on either side and in front of it between 
it and the free hood-like head shield or segment, the surface of 
which, as well as that of all the others, is covered with small 
tubercles and spines, as shown much enlarged in Figs. vi and vill, 
whilst its margins, as well as that of all the others are fringed 
with hooks or spines directed backwards, as shown in Figs. 1 and 
1v. There are no other appendages belonging to the head seg- 
ment except the first pair of legs, which seem a little shorter than 
those following. Between the first segment and the second there 
arises on each side a simple hair, which appears to be attached p 
the second segment, which is more than twice as wide as long, 
