206 Mr. J. Blackvvall on new Species of Spiders. 



upper part, and is broadest at its anterior extremity, projects 

 from each side, at somewhat more than a third of its length 

 from the spinners, a ray of the same hue, which is directed 

 obhquely downwards and backwards ; the anterior part of the 

 band comprises several brown spots, and there are in the poste- 

 rior part two or three angular lines of the same colour, having 

 their vertices directed forwards ; the under part is without spot, 

 aiul the sexual organs, which are not highly developed, have a 

 red-brown hue. 



Salticus vafer was captured in the island of Madeira. 



Salticus catus, n. sp. 



Length of an immature female (not including the spinners) 

 yV of an inch ; length of the cephalothorax -^-^, breadth -^ ; 

 breadth of the abdomen -jL ; length of a posterior leg -^ ; length 

 of a leg of the second pair j^. 



The legs are moderately robust, provided with hairs and ses- 

 sile spines, two parallel rows of the latter occurring on the in- 

 ferior surface of the tibise and metatarsi of the first and second 

 pairs, and are of a brownish-yellow hue ; the fourth pair is the 

 longest, then the third, and the second pair is the shortest; 

 each tarsus is terminated by two curved claws, and below them 

 there is a small seopula. The palpi are short and resemble the 

 legs in colour. The cephalothorax is convex, glossy, somewhat 

 quadrilateral, sloping to each extremity, and projecting a little 

 beyond the falces in front ; it has a slight indentation near the 

 middle, and is of a brown colour, tinged with yellow in the 

 medial line and on the sides, and the cephalic region has a 

 brownish-black hue. The minute intermediate eye of each 

 lateral row is nearly equidistant from the eyes constituting its 

 extremities. The falces are short, subconical, vertical, and 

 armed wdth one or two small teeth on the inner surface; the 

 maxillae are straight, and enlarged and rounded at the extremity; 

 and the lip is oval. These parts have a brown hue, the falces 

 being tinged with red. The sternum is oval and of a yellowish- 

 brown colour. The abdomen is oviform, glossy, pointed at the 

 spinners, which are prominent, convex above, and projects a 

 little over the base of the cephalothorax ; the upper part has a 

 dark-brown hue, with irregular lateral margins, and a brownish- 

 yellow dentated band extends along the middle, which com- 

 prises a series of angular lines of a dark-brown hue, whose 

 vertices are directed forwards ; the sides and under part are of 

 a pale brownish-yellow colour, the former being marked with a 

 few longitudinal dark-brown streaks, and the latter having a 

 black spot near the base of the spinners. 



This species was captured in the island of Madeira. 



