STROPHIUS.—BUCRANIUM. 87 
STROPHIUS, Keyserling. 
Strophius hirsutus, sp. n. 
Adult female, length slightly over 2 lines. 
The cephalothoraw is dark, slightly reddish-brown, narrowly margined with white, and covered thinly, chiefly 
towards the sides and in the ocular region, with minute tubercles or granulosities, each emitting a coarse 
spiniform bristle. The clypeus looked at in profile projects on a similar slope to that of the ocular area ; 
it is equal in height to half that of the facial space, and has a row of prominent bristles on its fore (or 
lower) margin. 
The eyes are small, excepting the fore laterals, which are considerably the largest. They are placed in two 
transverse nearly parallel rows; the anterior row being the shortest, but not greatly so. Each fore 
central eye is scarcely more than a diameter’s distance from the fore lateral eye on its side; the interval 
between the two fore centrals being at least three times as large. The two hind central eyes are rather 
wider apart than the fore centrals, and the four form a transverse oblong nearly twice as long as it is 
broad. The eyes are all narrowly margined with yellow, and those of the lateral pairs are seated on 
moderately strong tubercles. 
The legs are moderately strong and rather short ; the difference in length between 1-2 and 3-4 is not nearly so 
great as in the allied genera Xystious, Runcinia, Synema, &c. They are nearly similar in colour to the 
cephalothorax, but gradually become rather paler towards their extremities. Those of the two hinder 
pairs are marked with a straight, longitudinal white line along the upperside. Slight traces of a similar 
line are visible in parts on the first and second pairs of legs. They are nearly destitute of spines, 
excepting a few not very strong ones on the femora (which are rather granulose), and one or two at the 
extremities of the tibiz of the first and second pairs of legs. 
The falces are not very powerful; they are similar in colour to the cephalothorax, and furnished in front some- 
what thickly with short strong prominent bristles. 
The palpi are short, and similar to the legs in colour. 
The mazille are similar to the falces in colour, and are armed with a row of spine-like bristles on the outer 
margins and extremity of their anterior half. 
The sternum is rather darker, and its surface is slightly rugulose. 
The abdomen is very Thomisiform, broadest behind and moderately convex above ; it is covered rather thickly 
with prominent spine-like bristles. The upperside is deep brown, nearly black behind, with a broad 
cream-white transverse band near the middle; this band is continued obliquely over the sides, where it 
becomes of a yellow-brownish hue. Conspicuous on this band near the middle of the abdomen are two 
deep red-brown round impressed spots in a transverse line, and a little behind them is a largish nearly 
white patch forming a protuberance of the band itself; on the fore margin of the transverse band are 
two similar but smaller impressed spots nearer together. The sides are obliquely rugulose and spotted 
with white, and there are also a few scattered white spots on the hinder part of the abdomen near the 
spinners; in one example these spots form some broken transverse curved lines; the underside is dark 
brown. The genital aperture is not very conspicuous, but characteristic in form. 
Hab. Panama, Bugaba (Champion). 
BUCRANIUM, Cambridge. 
Bucranium spinigerum, sp. n. 
Adult female, length rather over 2 lines. 
The cephalothorax is of a deep rich reddish-brown colour, strongly tuberculose and its surface densely granulose ; 
the caput is very broad, the lower fore corners rather prominent, the fore margin indented or somewhat 
shallow angulated. The height of the clypeus exceeds half that of the facial space. The ends of the 
ocular area are very tuberculosely and irregularly prominent and divergent. On the upperside of the 
caput and sides of the thorax are eight or nine subconical spine-bearing prominences or tubercles of 
different sizes: the two largest are in a transverse line just at the thoracic junction, and each bears twe 
