404 Mr. J. Blackwall on new Species of pion: 
equidistant from the eyes constituting its extremities. The 
cephalothorax is large, convex, glossy, and somewhat quadri- 
lateral; it slopes to each extremity, projects a little beyond 
the falces in front, and has a broad shallow indentation be- 
tween the posterior pair of eyes ; its prevailing colour is black ; 
a broad red-brown band passes from the posterior pair of eyes 
to its base, and another band of the same hue extends along 
each side, a little above the lateral margin; these bands are 
densely covered with white hairs; in the cephalic region there 
are some pale-grey hairs constituting a continuation of the 
medial band; a few red hairs occur above the anterior eyes, 
and some long ones of a pale-yellow hue project from its an- 
terior margin. The falces are subconical and vertical; the 
maxille are straight, and enlarged and rounded at the extre- 
mity ; and the lip is oval. These parts are of a dark-brown 
colour; the apex of the lip and the extremity of the maxille 
are tinged with red, the latter being much the palest. The 
sternum is oval, provided with long hairs, and has a yellowish- 
brown hue. The legs are robust, especially those of the first 
and second pairs, and are provided with long hairs and sessile 
spines ; they are of a yellowish-brown colour, the tarsi being 
the palest, and have dark-brown spots and longitudinal streaks 
on the sides and upper part, those on the femora being the 
most conspicuous; the anterior pair are much the darkest- 
coloured, the genual joint, tibie, and metatarsi being of a 
dark-brown hue, and the tarsi having a tinge of red; the 
fourth pair is the longest, then the first, which a little sur- 
passes the third, and the second pair is the shortest; each 
tarsus is terminated by two curved, pectinated claws, and be- 
low them there is a small scopula. The palpi are short, well 
supplied with hairs, and of a dull-yellowish hue, the base of 
the humeral joint having a tinge of brown; the radial joint 
projects a pointed apophysis from its extremity, on the outer 
side; the digital jomt is oval, convex and hairy externally, 
concave within, comprising the palpal organs, which are well 
developed, prominent and convex at the base, and have a fine 
pointed spine curved from the inner side round their extremity 
to the outer side; their colour is a mixture of dark and pale 
reddish brown. The abdomen is oviform, somewhat depressed, 
rather pointed towards the spinners (which are prominent), 
well clothed with hairs, and projects a little over the base of 
the cephalothorax ; the upper part has a black hue; a white 
band, whose posterior half is the broadest, extends along the 
middle, from which a short white ray projects on each side at 
about a third of its length from the spinners; the sides are 
white, with soot-coloured streaks and spots; and the under part 
