Falconer: The Spiders of Wicken, Cambridge. 227 
coxae of legs I, rounded in front and truncate behind. 
The profile line curves gently upwards behind the ocular 
area, and is then fairly level to the thoracic junction, 
just beyond which the posterior slope is rather abrupt, 
and somewhat excavated. The thoracic sutures and 
other grooves are marked on their lower parts by uneven 
dusky lines, which converge towards the thoracic junction, 
just in front of which, centrally placed, is a large, irregular- 
edged, dark marking, rounded behind and transversely 
nearly straight in front, close to which two round yellowish 
brown spots are visible ;- each of its anterior external angles 
is prolonged to just behind the posterior lateral eye on 
the same side by a slender outwardly curved line. At 
the beginning of this marking, and also immediately 
behind it, are slight dips in the profile line. Lateral and 
posterior marginal lines black and uneven, the former 
disappearing forward. 
CapuT well marked, somewhat convex behind the ocular 
area, which occupies the whole width of the upper 
front. 
EYES (figs. 5 and 8).—Eight, in two rows, moderately large 
and closely grouped; the anterior centrals alone dark- 
coloured, the rest pearly white. 
POSTERIOR Eyres on black spots, subequal in size and 
arranged in a shallow backward curve. Centrals 
separated by about a diameter, and distinctly nearer to 
the adjacent lateral than to each other. 
ANTERIOR Eyes, their whole area suffused blackish, almost 
in eontact and with the laterals of the posterior row 
forming a strong curve forward. The laterals are a 
little the largest and the centrals much the smallest 
of the eight eyes. 
LATERAL EYES on each side in contact, and situated on a 
low oblique prominence. 
CENTRAL EYE SPACE longer than wide, and much narrower 
in front than behind. 
CLYPEUS low, about as high as the ocular area, depressed 
below the eyes and slightly projecting at lower edge. 
FALCES fairly long and stout, straight, vertical, conical, and 
finely transversely striate on outer margin. Fang, 
slender, long and tapering ; upper fang groove with 4 short 
conical yellowish-brown teeth (fig. 7), thé first three 
contiguous at base and increasing in size outwards to the 
third, which is the largest ; the fourth a little removed, 
and a little smaller than the third ; lower fang groove with 
4 very minute, granular teeth. 
MAXILLAE moderately long and strong, oblong, inclined to 
labium, the internal margin a little bent. The outer 
1915 July 2, 
