Mr. J. Blackwall on newly discovered species of Araneidea. 431 



convexity is directed backwards ; the interval between the inter- 

 mediate eyes of the posterior row is greater than the space which 

 separates them from the lateral ones of the same row, and the 

 intermediate eyes of the anterior row are rather the smallest and 

 darkest of the eight. The cephalo-thorax is oval, slightly com- 

 pressed before, somewhat rounded in front, convex, glossy, with 

 slight furrows on the sides converging towards a narrow indenta- 

 tion in the medial line ; it is thinly clothed with short, hoary 

 hairs, which are most abundant on the anterior part, and has 

 three oblique rows of white hairs on each side, which converge 

 towards its middle : the falces are conical, vertical, with a slight 

 protuberance near the base, in front, towards the inner side, and 

 have two very minute teeth on the inner surface : the maxillae 

 are powerful, enlarged where the palpi are inserted, gibbous at 

 the base, depressed transversely near the middle, rounded at the 

 extremity, with a small angular projection on the outer side, and 

 inclined towards the lip, which is longer than broad, and rounded 

 at the apex : the sternum is oval, pointed at its posterior extre- 

 mity, convex and glossy. These parts are of a red-brown colour, 

 the sternum having obscure, dark brown streaks directed from 

 the lateral margins towards its centre. The legs are moderately 

 long, provided with hairs, and are of a brownish- yellow colour, 

 with the exception of the femora of the first and second pairs, 

 which have a brownish-black hue, and the anterior side of the 

 femora of the third and fourth pairs, which has a brown tint ; 

 the fourth pair is the longest, then the first, and the third pair 

 is the shortest ; each tarsus is terminated by two plain, curved 

 claws, below which there is a small scopula. The palpi are 

 slender, and, with the exception of the humeral joint, which is 

 of a brownish-black colour, have a brownish-yellow hue, faintly 

 tinged with red ; the cubital and radial joints are short, and the 

 latter, which is the larger, projects a small, pointed apophysis 

 from its extremity, on the outer side; the digital joint is of an 

 oblong-oval form, compact and pointed at the extremity, convex 

 and hairy externally, concave within, comprising the palpal 

 organs, which are well developed, prominent, not very complex 

 in structure, with a process near the middle which is directed 

 forwards, and are of a mingled red-brown and brownish-yellow 

 colour. The abdomen is oviform, glossy, clothed with short 

 hairs, convex above, and projects a little over the base of the 

 cephalo-thorax ; it is of a deep black hue, but iridescent, reflect- 

 ing bright tints of green, purple and copper when viewed in a 

 strong light ; the branchial opercula and the medial line of the 

 under part are of a brown colour, and the extremities of the 

 superior and inferior spinners have a somewhat darker shade ; 

 there is also a curved transverse line immediately below the 



