Blackwall — spiders Captured in the Seychelles Islands. 3 



whose lateral margins are slightly sinuous, extends along the middle 

 •of the upper part ; the anterior part, contiguous to the cephalotho- 

 rax, and the sides, are of a dark-brown colour ; a yellowish- white line 

 passes along the latter, from the posterior half of which two streaks of 

 the same hue are directed obliquely backwards and downwards ; the 

 under part is of a yellowish-white colour, with a short, transverse, 

 brown bar near the spinners, which have a dark-brown hue, their 

 bases and extremities being yellowish- white : the sexual organs are 

 moderately developed, and of a brownish-red colour. 



I have bestowed on this prettily marked Salticus the name of Pro- 

 fessor E. Perceval Wright, who, on various occasions, has transmitted 

 to me highly interesting collections of foreign spiders, and has most 

 liberally permitted me to describe such species as were supposed to be 

 unknown to arachnologists. 



Salticus acutus, n. sp. [Attus, Sim.]. Plate 1, fig. 2. 



Length of the female (not including the spinners) -n-ths of an 

 inch ; length of the cephalothorax, -fV ; breadth, -^V ; breadth of the 

 abdomen, -jV ; length of a leg of the third pair, -^ ; length of a leg of 

 the second pair, -J-. 



The cephalothorax is convex, glossy, somewhat quadrilateral, 

 sloping gradually towards the front, and abruptly at the base ; it has 

 a slight depression between the posterior pair of eyes, is sparingly sup- 

 plied with whitish hairs, and is of a yellowish-red colour ; the cephalic 

 region is strongly tinged with brown, especially about the lateral eyes. 

 A brown spot occurs on each side of the posterior slope, and the frontal 

 margin is provided with long yellowish-white hairs. The minute in- 

 termediate eye of each lateral row is nearly equidistant from the eyes 

 constituting its extremities. The falces are short, subcorneal, vertical, 

 and armed with a few teeth on the inner surface ; the maxillas are 

 straight, and enlarged and rounded at the extremity ; the lip and 

 sternum are oval, the latter being broader at the posterior than at the 

 anterior extremity. The legs are robust, especially those of the an- 

 terior pair, and are provided with hairs and spines, two parallel rows 

 ■of the latter occurring on the inferior surface of the tibise and meta- 

 tarsi of the first and second pairs ; the third pair is the longest, then 

 the fourth, and the first pair slightly surpasses the second ; each tar- 

 sus is terminated by two curved, minutely pectinated claws, below 

 which there is a small scopula ; the palpi are short, and the radial 

 and digital joints are well supplied with pale hairs. These parts are 

 of a brownish-yellow hue, the falces being the darkest. The abdomen 

 is oviform, convex above, and tapers to the spinners, which are pro- 

 minent ; it is clothed with pale hairs, and is of a yellowish- white 

 eolour, the under part being the palest ; an irregular brown band 

 extends along each side of the upper part, and the space between these 

 bands comprises a series of rather obscure angular and curved lines of 

 the same hue ; a narrow band, consisting of short brown streaks and 

 spots, curves round the anterior extremity, and passes obliquely down- 



B 2 



