Mr. Blackwall's Descriptions of new Species of Spiders. 6l5 



the largest of the eight. Mandibles powerful, conical, vertical, with a 

 few teeth and a fringe of long hairs on the inner surface. Maxillae 

 strong, curved towards the lip, enlarged at the extremity, which is 

 obliquely truncated and fringed with hairs on the inner side. Lip nearly 

 quadrate, rather broader at the base than the extremity. Sternum heart 

 shaped. These parts are brownish black, the maxillse having a tinge of 

 red at the extremity, and the sternum being thinly covered with long 

 black and short yellowish brown hairs. Legs and palpi dark yellowish 

 brown, with black bands ; the latter have a curved claw at their extre- 

 mity. Fourth pair of legs the longest, then the first ; third pair the 

 shortest. Each tarsus is terminated by three claws ; the two superior 

 ones are curved and pectinated, and the inferior one is inflected near 

 its base. Abdomen oviform, rather broader at the posterior than the 

 anterior extremity, thickly covered with hairs, convex above, projecting 

 over the base of the cephalo-thorax ; the upper side is yellowish brown, 

 a band of a paler hue extending from the anterior part, along the middle, 

 more than a third of its length ; this band has an obscure border of 

 black, on which are several irregular white spots ; a series of black and 

 white spots, disposed alternately, commences near the extremity of the 

 band, on each side of the medial line, and extends to the spinners, where 

 the two meet ; the black spots of both series are connected by obscure, 

 black, angular lines, each comprising a white spot within its vertex ; the 

 sides are mottled with dull olive-brown, yellowish brown, and white ; and 

 the under part is yellowish brown. A compressed, hairy pi-ocess, en- 

 larged at its extremity, is connected with the anterior margin of the 

 sexual organs. 



The male is smaller than the female, and paler; but it resembles her 

 in the general distribution of its colours, and in the relative length of its 

 legs. Base of the thigh of each anterior leg black. The first and second 

 joints of the palpi are dark brown ; the third and fourth, which are 

 short, are yellowish brown ; and the fifth is dark reddish brown ; this 

 last joint is of an elongated oval form, convex and hairy externally, with 

 a cavity near its base, on the under side, comprising the palpal organs ; 



