2 Proceedings of the Royal Irish Acadeimj. 



nience. In order, also, not to alter nor mutilate his wonderfully 

 lucid and minute descriptions, I have included such observations as 

 seemed requisite, in a different type, and within brackets, chiefly at 

 the end of the several descriptions of those species to which the obser- 

 vations apply. 



Bloxwoeth, Dorset, 

 September 19^, 1876.] 



0. P. Ca^ibeidge. 



Tribe OCTO]SrOCULIN-A. 



Eamily SALTICID^. 

 Genus Saxticus, Latr. 



Salticus "Weightii, n. sp. [Attus, Sim.]. Plate 1, fig. 1. 



Length of the female (not including the spinners) xVths of an inch ; 

 length of the cephalothorax, #o' ; breadth, -jV ; breadth of the abdo- 

 men, -iV ; length of an anterior leg, -f^ ; length of a leg of the third 

 pair, \. 



The minute intermediate eye of each lateral row is nearer to the 

 anterior than to the posterior eye of the same row. The cephalotho- 

 rax is large, glossy, and somewhat quadrilateral ; it slopes abruptly 

 at the base, has a broad indentation in the medial line, and is of a dark 

 reddish-brown colour, with a broad, curved, brownish-red, transverse 

 band near the middle, whose convexity is directed backwards, and a 

 transverse bar of the same hue between the anterior and posterior eyes. 

 The falces are powerful, conical, slightly prominent, divergent at the 

 extremity, and armed with a few teeth on the inner surface. The 

 maxillas are strong, straight, and enlarged at the extremity, which is 

 obliquely rounded on the inner side ; and the lip is oblong, and rounded 

 at the apex. These parts are of a reddish-brown colour, the extremity 

 (if the maxillae and the apex of the lip having a yellowish- Avhite hue. 

 The sternum is oval, with slight prominences on the sides, opposite to 

 the legs ; the posterior is broader than the anterior extremity, and its 

 colour is yellowish- white. The legs are robust, especially those of the 

 antei'ior pair ; they are provided with hairs, and the first and second 

 ])airs have two parallel rows of spines on the inferior surface of the 

 tibise and metatarsi ; the anterior legs are of a reddish-brown colour, 

 Avith the exception of the tarsi, which have a brownish-yellow hue ; 

 the colour of the first, second, and third pairs is brownish-yellow, that 

 of the sides of the femora being brown ; the first pair is the longest, 

 then the second, and tlie third pair is the shortest ; each tarsus is ter- 

 minated by two cuiTed, minutely pectinated claws, below which thei-o 

 is a small scopula. The palpi are slender, of a brownish-yellow hue, 

 and the digital joint is supplied with long hairs. The abdomen is 

 long, subcylindrical, and tapers to the spinners, which are prominent, 

 the superior pair being the longest ; a broad yellowish- white band, 



