Psyche 
84 
[September j 
arms are unequal, the inner being the shorter. The crest 
is markedly pilose outwardly. The appendiculate spine is 
attached near the terminal upcurving horn, and is unusually 
long, with a recurving hooked tip. There are two spines 
arising from small prominences, one at the junction of the 
furcation and the other proximal to the inner arm of the 
Y-shaped tip. The peculiar shape of the clasper can best 
be noted by reference to the figure. 
The ninth tergites are ovoid, closely approximate, but not 
touching, with bare rounded tips. The bases are conically 
produced mesially, and bear numerous prominent tubercles, 
from which arise long, strong setae. 
The tenth sternites are rather long, with 7 or 8 strong 
blunt teeth. 
The paired inner plates of the mesosome are T-shaped, 
the middle portion of the cross-bar of the T being some- 
what rounded and elevated. The inner arm of the cross-bar 
is produced into a long pointed downcurving horn, while 
the outer arm consists of a short process set at an angle of 
about 45 degrees with the plane of the plate, and terminat- 
ing in a truncate tip which is serrate, with four or five 
ragged teeth. 
The type slide has been deposited in the U. S. National 
Museum. 
