454: Mr. J. Blackwall on new Species of Spiders 
a large quadrilateral figure, formed by the four exterior ones, 
whose anterior side is the longest, includes a small trapezoid 
described by the four intermediate ones; the posterior eyes of 
the trapezoid are the widest apart and the largest of the eight, 
and the anterior ones, each of which is seated on a small tuber- 
cle, form with the anterior eyes of the quadrilateral figure a 
transverse row in front. ‘The cephalothorax is large, very con- 
vex in the cephalic region, depressed behind, clothed with 
brownish-yellow hairs, and of a red-brown colour, the lateral 
margins being the palest. The falces are short, powerful, cu- 
neiform, vertical, densely covered with reddish-yellow hairs at 
the base, in front, and of a red-brown colour, the extremity 
being much the darkest. The maxille are straight, enlarged at 
the extremity, which is rounded on the outer side and somewhat 
produced on the inner side; the lip is triangular, and the ster- 
num is oval. These parts have a pale red-brown hue. The legs 
are moderately long, robust, clothed with hairs, and are of a 
yellowish-brown colour, the under part of the femora and tibiz 
of the first and second pairs having a dark-brown hue; the first 
pair is the longest, then the fourth, and the third pair is the 
shortest ; each tarsus is terminated by three claws; the two 
superior ones are curved and pectinated, and the inferior one is 
inflected near its base, where there are several minute teeth; 
the metatarsus of each posterior leg is provided with a calamis- 
trum. The palpi, which are short, resemble the legs in colour, 
and have a curved, pectinated claw at their extremity. The 
abdomen is oviform, convex above, projecting over the base of 
the cephalothorax ; it is clothed with brownish-yellow hairs, and 
is of a yellowish-brown colour, the under part being much the 
brownest ; four dark-brown depressions, connected by a sinuous 
line of the same hue, extend along each side of the medial line 
of the upper part : the sexual organs are moderately developed, 
and of a red-brown colour; the spinners are cight in number; 
those of the inferior pair, which are the shortest, consist of a 
single jot each, and are united throughout their entire 
length. 
An adult and an immature female of resus africanus were 
included in the collection. This species is provided with eight 
spinners and calamistra; and I am informed by the Rev. O. P. 
Cambridge that Dr. Ludwig Koch, of Niirnberg, has observed 
that some other species of the genus are similarly organized. 
Should all of them be found to be provided with these parts, 
the entire genus should be comprised in the family Ciniflonide ; 
but if they are possessed only by a portion of the species, a new 
genus, founded on such species, should be transferred to that 
family. 
