44 Ml*. J. Blackwall on neivhj discovered Spiders. 



thorax ^ ; breadth —^ ; breadth of the abdomen ^ ; length of an 

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



The cephalothorax is large, oval, glossy, moderately convex, 

 with slight furrows on the sides converging towards a small 

 indentation in the medial line, and is of a dark brown colour 

 tinged with red. The eyes are nearly equal in size, and arc grouped 

 on the anterior part of the cephalothorax in the form of a small 

 oval open in front ; the two intermediate ones are near to each 

 other, and those of each lateral pair are seated obliquely on a 

 tubercle, and are almost in contact. The falces are small, coni- 

 cal, rather prominent, and are armed with a short curved fang 

 at the extremity, but have no teeth on the inner surface ; the 

 maxillse are straight, greatly dilated at the base, where the palpi 

 are inserted, and somewhat enlarged at the extremity, which is 

 rounded on the outer side; the lip is long and truncated at the 

 apex ; the sternum, which has an oval form, is narrower at its 

 anterior than at its posterior extremity, and has small promi- 

 nences on the sides, opposite to the legs. These parts have a 

 red-brown hue, the sternum and the base of the lip being much 

 the darkest. The legs are robust, provided with hairs and with 

 sessile spines on the inferior surface of the tibise and metatarsi 

 of all except those of the posterior pair, and are of a yellowish- 

 brown colour ; the first pair is the longest, then the second, and 

 the third pair is the shortest ; each tarsus is terminated by three 

 claws ; the two superior ones are curved and pectinated, and the 

 inferior one is small and inflected near its base. The palpi are 

 strong and of a yellowish-white colour, with the exception of the 

 axillary joint, which has a red-brown hue ; the radial is very 

 much larger than the cubital joint, and has the appearance of 

 being swollen ; the digital joint is short, oval, convex and hairy 

 externally, and the palpal organs are connected with its inferior 

 surface by a short pedicle ; these organs are highly developed, 

 and somewhat resemble Rupert's drops in form, being sub- 

 globose at the base and terminating in a long curved process 

 gradually tapering to a point ; they are of a pale red-brown co- 

 lour, with a transverse yellowish-white band extending from the 

 base of the subglobose part to its extremity. The abdomen is 

 short, oviform, convex above, thinly clothed with fine hairs, and 

 of a dull olive-green hue ; a large semicircular mark at its ante- 

 rior extremity, from which a fusiform band, bifid at its termina- 

 tion, extends along the middle of the upper part rather more 

 than a third of its length, and a series of short transverse curved 

 bars between this band and the spinners are of a dark puce- 

 colour; an oblong spot of the same hue is directed forwards 

 from each side of the spinners, which have a pale yellowish- 

 brown tint ; the branchial opercula and tracheal stigmata are of 



