436 Mr. J. Blackwall on newly discovered Spiders 



brownest at the base. The sternum is heart-shaped, with emi- 

 nences on the sides, opposite to the legs ; it is clothed with hairs, 

 and of a yellow- white hue, with dark brown spots on the margins. 

 The legs are long, provided with hairs and spines, and are of a 

 yellowish-brown colour, the metatarsi and tarsi being much the 

 palest ; the femora, genua, and tibiae are tinged with red, and 

 minutely spotted with black ; the first pair is the longest, then 

 the second, and the third pair is the shortest ; the tarsi are ter- 

 minated by claws of the usual number and structure. The palpi 

 are short, and have a pale dull yellow hue ; the cubital is smaller 

 than the radial joint, and projects a bristle in front ; the radial 

 joint is protuberant on the inner and outer sides ; the digital 

 joint is oval, with a process at its base curved outwards ; it is 

 convex and hairy externally, concave within, comprising the 

 palpal organs, which are highly developed, protuberant, complex 

 in structure, with a trifid process near the middle, which projects 

 a fine point from its anterior side, and a strong, brownish-black, 

 curved spine at their extremity, whose prominent termination is 

 directed downwards; the colour of these organs is pale red- 

 brown. The convex sides of the digital joints are directed to- 

 wards each other. The abdomen is oviform, slightly prominent 

 on each side of its anterior extremity, sparingly clothed with 

 hairs, moderately convex above, and projects over the base of the 

 cephalothorax ; it is of a pale dull yellowish colour, with a row 

 of minute depressed brown spots on each side of the medial line 

 of the upper part, and two small, nearly contiguous, yellow spots 

 placed transversely above the spinners ; the sides and under part 

 are marked with short black streaks and spots, the latter, which 

 is the darker, having a slightly curved yellowish-white band on 

 each side; and on the outer side of the base of each inferior 

 spinner there is a spot of the same hue. 



Epe'ira tristis. 



Length of the female /^ths of an inch ; length of the cephalo- 

 thorax y^^ ; breadth y^^^ ; breadth of the abdomen ^ ; length of 

 an anterior leg -^^ ; length of a leg of the third pair ^. 



The abdomen is of a somewhat depressed oviform figure, pro- 

 jecting a little beyond the spinners and greatly over the base of 

 the cephalothorax ; it is thinly clothed with hairs, and has a 

 large chocolate- brown oval band, whose slightly sinuous margins 

 are bordered with yellowish-white, extending along the middle 

 of the upper part ; the anterior extremity of this band tapers to 

 a point, and the posterior part comprises four longitudinal rows 

 of very minute, obscure yellowish-brown spots ; the sides have a 

 yellowish-white hue, tinged with brown at the lower part, and 

 are marked with black and dark-brown streaks and blotches ; 



