148 
BB, The Palps (Tåb. IV 9). 
The -palps are articulated. to the pseudocapitulum. in front of 
the above named projection. They consist of four free joints as 
the basal one is fused. into or identical with the maxillae. The 
first joint (trochanter) is small, almost round and provided.with two 
pointed hairs below. The second joint (femur) (pl. IV fig. 9) is 
enlarged towards its end. The upper side is provided. with fan hairs, 
the lower with a single. one.. Besides. there are short pointed 
hairs. The. third. joint (tibia). is a little shorter than.the former 
and provided. with few fan hairs and several pointed hairs. The 
last joint (tarsus) is the longest; a forwards bending line separates 
it into two parts, a proximal , longer one (fig. 9 i), and a distal, 
shorter one. The first part is provided with relatively few pointed 
hairs; the hairs of the second part are placed nearer to each. other 
especially along the upper margin, their tips bending downwards. 
Some hairs on the under side bear distally two short. branches. 
There are two claws. 
The palps are almost as long as the pseudocapitulum and are 
carried in a downward-bent direction. The articulations between the 
maxillae and the trochanter and between. the trochanter and femur 
give the forward, backward and lateral directions. to the appendage. 
Between the patella and tibia there is a ginglymous articulation, 
which effects. down- and upwards movements; the. articulation be- 
tween tibia and tarsus also permits a lateral movement. 
C. The Antennae (Tab. IV fig.4, 5 & 10). 
This pair of appendages ought to: have been dealt with before 
the pharyngeal tube, as this is partly formed of the basal part of 
the second pair of limbs, but as the whole pseudocapitulum forms 
one organ, including the antennae, I think it most correct: to de- 
scribe them here. Winkler (20 pag. 322) homologizes these limbs 
with the mandibles of the insects, on account of the suboesophageal 
origin of their nerves. No doubt he overvalues the importance of 
