from the South-east Region of Equatorial Africa. 465 
where the two are united by a transverse bar of the same hue ; 
two pale brown spots eccur behind the posterior pair of eyes, 
and the whole is clothed with white hairs having a silvery lustre. 
The falces are powerful, conical, vertical, armed with teeth on 
the inner surface, and of a pale dull-yellow colour, with an ob- 
scure brown line extending along their inner side, and passing 
obliquely above their extremity. The maxille are short, strong, 
and greatly enlarged and rounded at the extremity; the lip is 
semicircular, but somewhat pointed at the apex; and the ster- 
num, which is heart-shaped and hairy, has eminences on the 
sides, opposite to the legs. These parts are of a dark-brown 
colour; the extremity of the maxille and the apex of the lip 
have a brownish-yellow hue; and a band extending along the 
middle of the sternum, from each side of which a streak is directed 
obliquely backwards and outwards, is of a pale dull-yellow co- 
lour. The legs are long, slender, provided with hairs and a few 
spines, and are of a dark-brown hue, with broad brownish-yellow 
annuli; the first pair is the longest, then the second, and the 
third pair is the shortest; the tarsi are terminated by claws of 
the usual number and structure. The palpi are long, of a pale 
dull-yellow colour, and have a curved, pectinated claw at their 
extremity. 
Although this spider differs remarkably in form and in some 
other particulars from Argyopes caudatus (see the ‘Annals and 
Mag. of Nat. Hist.’ ser. 3. vol. xvi. p. 346), yet it possibly may 
be an immature individual of that species, to which it bears 
some striking pomts of resemblance. 
Genus Eurysoma, Koch. 
Eurysoma vicina, n. sp. 
Length of the female 1+; inch; length of the cephalothorax +, 
breadth ~2,; breadth of the abdomen 58,; length of a posterior 
leg 155;; length of a leg of the third pair 12. 
The eyes are disposed on the anterior part of the cephalo- 
thorax in two transverse rows; the four intermediate ones are 
seated on a protuberance, and form a trapezoid, the two anterior 
ones, which are nearer to each other than the posterior ones, 
being the largest of the eight; the eyes of each lateral pair are 
placed apart on a strong tubefcle, and are distant from the four 
intermediate ones. The cephalothorax is large, compressed be- 
fore, truncated in front, and rounded on the sides, which are 
marked with furrows converging towards the middle; the 
cephalic region, which is greatly elevated above the posterior 
part, has four conical glossy tubercles disposed im a transverse 
