the submedian pairs nearlv one third as long as the posterior 
breadth of the segment (fig. 2 d) or even a little longer. 
Anal Segment (lig. 2 b, 2 d and 2 e). The tergum is rounded 
behind and has a rather broad but very low projection either 
o\ erreaching the posterior margin (fig. 2 c) or in other specimens 
placed just below it (fig. 2 e); the setæ are tapering and rather 
long, those of the lateral pair are somewhat more than half as long 
as the breadth of the segment, the submedian setæ are nearly two 
thii ds as long as the lateral pair and a little longer than the inter- 
mediate paii; the distance between the submedian setæ is somewhat 
longer than between a submedian and an intermediate seta. — The 
stvli are very short and besides clavate to a most extraordinary de- 
gree: they are only twice as long as broad beyond the middle and 
conspicuously shorter than the branches of the anal plate. (In this 
species I have discovered close above the styli a pair of setæ, 
v, hich are so short that they could only be observed under high 
magnifying power; being overlapped by the styli they could not be 
drawn in fig. 2 e). — The sternum has three pairs of setæ; the 
posterior setæ are cylindrical and a little longer than the submedian 
dorsal pair, the lateral setæ are tapering and half as long as the 
lateral dorsal ones; the anterior pair is short and inserted rather 
near the anterior margin of the segment. — The anal plate is 
slightly broader tlian long, posteriorly broadly rounded without 
lateral angles; from its hind margin originate rather close to each 
other two siender branches which are parallel and somewhat shorter 
than the plate. 
Legs. They are rather long and increase somewhat in lengtli 
posteriorly. The last pair (fig. 2 f) is rather siender; the femur 
is a little longer than the trochanter and somewhat longer than 
thick; the tibia is slightly longer than the femur, more than twice 
as long as thick and slightly more than half as long as the tarsus. 
The haiis on coxa and trochanter are biramous; the seta on the 
tibia is more than two thirds as long as the joint. 
Copulcitory Organs (fig. 2 g). Seen from behind they are 
