684 REV. O. p. CAMBRIDGE ON A NEW SPIDER. [JuUC 7, 



The legs are strong, of moderate length, and do not vary greatly 

 in that respect. Those of the first and fourth pairs do not differ 

 much, the fourth being rather the longest, and the third shortest. 

 They are similar in colour to the cephalothorax, densely pubescent, 

 and clothed with long, coarse bristly hairs of a greyish-foxy hue ; 

 there are also spines beneath the metatarsi and tibiae, but concealed 

 by the density of the hairs ; beneath the tarsi and metatarsi is a 

 dense scopula. Terminal claws 2, almost concealed, strong, curved, 

 and their hinder half furnished beneath with a few small denticula- 

 tions. It is possible that these denticulations are not uniform in all 

 the legs ; those which I examined minutely were of the second pair. 



The palpi are strong, and similar in colour and clothing to the legs, 

 with a dense scopula beneath the digital joint. 



Thefalces are very strong and massive, and similar to the legs in 

 colour and clothing. 



The maxillcB are strong, cylindrical, with a strongish subconical 

 prominence at their extremity on the inner side. The labium is 

 short, prominent at its apex, the transverse line of which is hollow. 

 A space at the base, on the inner side, of each maxilla, as well as at 

 the apex of the labium, is densely clothed with short, nearly cylin- 

 drical, round-topped tubercles of uniform height. 



Sternum small, oval, hollowed out at the fore extremity, clothed 

 and coloured like the legs. 



Abdomen short, oval, in colour and clothing like the legs ; but the 

 coarse bristly hairs are longer, stronger, and of a more foxy, or dull 

 rusty-reddisii hue. Spinners of superior pair tolerably long and 

 strong, 3-jointed and upturned. From the cast skin of the example 

 described, the spinners would appear to have been considei'ably larger 

 before its ecdysis ; possibly they may have shrivelled, as the Spider 

 seems to have died soon after that operation. 



Two males received from Brazil, and which I believe to be of the 

 same species as the female above described, have the coarse bristly 

 hairy clothing of the legs &c. of a brighter reddish hue. Beneath 

 the fore extremity of the tibiae of the first pair of legs is along, strong, 

 curved, corneous, obtusely-pointed process directed forwards. 



The palpi of these males are tolerably long, the radial joint longer 

 than the cubital, the digital joint short. The palpal organs consist 

 of a basal bulb, produced into a long, strong, twisted, somewhat cork- 

 screw-shaped process, gradually lessening towards its extremity, and 

 ending rather abruptly in a point, near which is another minute point 

 or prominence. 



The dimensions of the male are: — length 17 lines, to the end of the 

 falces 19| ; greatest expanse of the legs 5 inches lOg lines. The 

 cephalothorax is broader in proportion to its length than in the female, 

 though rather narrower at the fore extremity, a peculiarity observ- 

 able in the males of some other species also. 



Hab. Of the 5, Bahia; of the two S , Brazil. 



P.S. Since the above was in the press the Secretary of the Society 

 has kindly sent to me for examination two other specimens, apparently 



