466 Mr. J. Blackwall on new Species of Spiders 
row behind the eyes, and is densely clothed with hoary hairs ; 
the falces are short, very powerful, subconical, vertical, and 
armed with teeth on the inner surface; the maxille are short, 
strong, straight, and greatly enlarged and rounded at the extre- 
mity; the lip is semicircular; and the sternum is heart-shaped, 
with small eminences on the sides, opposite to the legs. These 
parts are of a brownish-black colour, the base and lateral mar- 
gins of the cephalothorax being tinged with red. The legs are 
moderately long and robust, the genua, tibiz, and metatarsi 
being somewhat depressed; they have a very dark brown hue, 
are provided with hoary hairs on the upper surface, and have a 
patch ‘of white hairs at the base of the tibie, and at the base 
and extremity of the metatarsi on the under side; the fourth 
pair, which is the longest, very slightly surpasses the first pair, 
and the third pair is the shortest; the tarsi are terminated by 
claws of the usual number and structure. The palpi are rather 
short, somewhat depressed, of a very dark brown hue, provided 
with hoary hairs intermixed with some of a brownish-red colour 
on the upper surface, and have a curved, pectinated claw at their 
extremity. The abdomen is circular, without spines, truncated 
in front, moderately convex above, and projects greatly over the 
base of the cephalothorax; the upper part is of a brownish- 
yellow colour; three conspicuous, depressed, brown spots form 
a row on each side of the medial line, and numerous smaller 
depressed spots of the same hue occur in front and on the sides; 
four conical tubercles form a curved row on each side of the 
anterior part, the anterior one being much the smallest; three 
other tubercles form a transverse row between the posterior ones 
of the two curved rows; two others are placed wide apart on 
the posterior half, and four more, nearly describing a square, 
are situated above the spinners; the sides and front are paler 
than the upper part, and are densely clothed with hoary hairs ; 
the under part has a brown hue, the sexual organs and spinners 
being the darkest, and the branchial opercula the palest, and 
there is a transverse pale-buff band immediately behind the 
sexual organs, which are well developed, with a convex protube- 
rance on each side, and between them a fine, pointed process 
connected with their anterior margin. 
The collection contained a single adult female of this fine 
Eurysoma, which is very closely allied to the Epetra imperialis 
of Walckenaer, ‘Hist. Nat. des Insect. Apt.’ tom. 11. p. 147 
(Eurysoma sexcuspidata, Koch, Uebers. des Arachn. Syst., fiinftes 
Heft, p. 10), but differs from it in various particulars, and espe- 
cially in the number and disposition of the tubercles on the 
abdomen. 
