178 Mr. J. Blackwall on new Species of Spiders 



band extending along each side, and narrow lateral margins of 

 the same hue. The falces are powerful, conical, vertical, armed 

 with teeth on the inner surface, and somewhat darker-coloured 

 than the cephalothorax, having a tinge of red. The maxillae are 

 straight, and narrower at the base than at the extremity, which 

 is rounded ; the lip is nearly quadrate, being rather broader at 

 the base than at the apex ; the sternum is heart-shaped, and 

 pointed at the extremity ; the legs and palpi are long, slender, 

 and provided with hairs and spines ; the first pair of legs is the 

 longest, then the fourth, 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 inflected near its 

 base, which has one or two minute teeth on each side ; the palpi 

 have & curved pectinated claw at their extremity. These parts 

 are of a brownish-yellow hue, the lip being the brownest on the 

 sides ; the sternum has soot-coloured annuli on the lateral mar- 

 gins, opposite to the legs ; and the legs have a few annuli of the 

 same hue on the femora. The abdomen is oviform, convex 

 above, projecting over the base of the cephalothorax ; it is thinly 

 clothed with short hairs, and of a dull yellowish colour tinged 

 with brown ; a series of spots extends along each side of the 

 medial line of the upper part, several of which unite immediately 

 above the spinners ; some streaks and small spots occur on the 

 sides, and three longitudinal lines on the under part; these 

 spots and lines are soot-coloured and rather obscure : the spin- 

 ners have a yellowish-white hue, the two superior ones, which 

 are the longest and triarticulate, with the spinning-tubes dis- 

 tributed on the inferior surface of the taper terminal joint, having 

 the medial joint of a brownish-black colour. 



The collection contained three females of this Tegenaria ; but, 

 as they were immature, I cannot positively assert that the species 

 is undescribed, though I am strongly inclined to believe that 

 such is the case: this doubt is imphed in the specific name 

 provisionally given to it. 



Family Theridiid^. 

 Genus Theridion, Walck. 



Theridion ? 



One specimen of a female Theridion, whose abdomen had been 

 so much injured by maceration in spirit, and whose legs had 

 suff'ered so greatly from mutilation, that it was not possible 

 to ascertain whether it was undescribed or not, was the only 

 representative of the genus in the collection. From certain 

 circumstances in connexion with this spider, I am disposed to 

 believe that, when captured, it had recently changed its integu- 



