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originate nearer to the base of the plate than the inner branches. 
— The tergum is pubescent as the preceding segment. 
Legs. They are long and increase considerably in length po- 
steriorly. The last (eighth) pair (fig. 5d) is long and very siender, 
with the proportions between the joints about as in Stylopauropus 
pedunculatus : the femur is twice as long as thick, much longer 
than the trochanter and slightly shorter than the tibia, which is 
nearly three times as long as thick and slightly more than half as 
long as the tarsus. The hairs on coxa and trochanter are bira- 
mous; the seta on the tibia is half as long as the joint, pubescent, 
while the joints are almost naked. 
Copulatory Organs (fig. 5 e). Though the specimen has only 
eight pairs of legs the copulatory organs are apparently well deve- 
loped. Seen from in front they are siender, with the distal half 
produced almost as a rather elongate process; the inner margin is 
straight, the outer is convex in the basal and slightly concave 
in the distal half; the apex is subacute and the usual seta terminal. 
Length. The immature and rather contracted specimen mea- 
sures *55 mm. 
Locality. Isl. Koh Chang (Gulf of S i am), under stones. 
Jan. 7. 1900 (Dr. Th. Mortensen leg.). 
Remarks. It is easily distinguished from all other species de- 
scribed in this paper by the process on the sternum of the anal 
segment. Furthermore, the anal plate, the setæ on the tergum of 
the anal segment and the posterior segments of the trunk, the an- 
tennæ and the head etc. present numerous excellent characters. 
6. Pauropus armatus n. sp. 
PI. II, fig. 6a—6c; pi. III, fig. 1 a—1 c. 
Material. Four more or less tolerably preserved specimens; 
one of them is immature with eight pairs of legs, one is an adult 
temale and two are adult males. 
Head (fig. 1 a). The eyes are large, and the distance between 
diem is about as long as three fourths of an eye. — The dorsal 
