A Contribution to the Spider Fauna of Scotland. 119 
All these measurements are made from the vuter side, but in Plate II. 
fig. 1 the foregoing articles are not shown in profile, and so 
do not appear to have the shape here described. 
Tarsus—3 mm. in length, gibbous dorsally behind. 
Paracymbium.—Large and complex. It bears two prominent black teeth, 
one projecting forward from the posterior border, the other upwards from 
the ascending ramus. 
Lamella characteristica.—In the shape of a large, shining, curved band. 
This has a complicated termination ending in a large, sharp point placed below 
a bunch or brush of minute bristles, the size of which is exaggerated in 
Fig. 1. 
Embolus.—Large, thick, and directed upwards. 
Legs.— Femora—tThe first femur bears a spine near the apex on the dorso- 
internal surface. Remaining femora unarmed. 
Patellw.— Each bears a spine above. 
Tibiw.—Each bears two dorsal spines. The first tibia bears in 
addition an anterior lateral and a posterior lateral spine, about 
the level of the distal dorsal spine. The second tibia bears a 
posterior lateral spine only, at this level. Remaining tibic 
without lateral spines. 
Metatarsi.—Kach bears a single spine dorsally nearer the base than 
the apex. Lateral spines absent. 
FEMALE.—Length, 1°8 mm. to 1°9 mm. The female is slightly larger than 
the male and has a much more convex and rotund abdomen, which is 
usually of a lighter colour. General characters and leg armature as in the 
male. 
Falces—Shorter and less divergent. The anterior border of the fang 
groove bears three strong teeth, of which the distal is the largest and 
the proximal the smallest. The posterior border bears four very minute 
closely-grouped denticles. 
LEpigyne.—Highly characteristic. Seen from beneath, this appears as a 
very large projection of hairy, almost unmodified, integument which springs 
from the epigastric region and reaches the middle of the ventral surface of 
the abdomen. Viewed from the side, a pale chitinized area can be seen, and 
also a small curved process springing from the lower border and running 
backwards and downwards. These structures are, however, best seen from 
below and behind, whence they appear as represented in Fig. 6. 
Several females of Z. cacuminum were taken under stones at 3500 feet, 
near the summit of Schiehallion, on June 9th. On June 14th, more females 
and a few males were obtained on Ben Nevis, between 3700 feet and 4200 
