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 maxille 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 a 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 implied in the specific name 
provisionally given to it. 
Family THERIDIIDZ. 
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 
suffered 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- 
