8 SECOND YARKAND MISSION. 
Tlie sternum is like the cephalothorax in. colour, and of a regular oval form, pointed 
behind ; it, like the maxillae and labium, is clothed with fine brownish hairs. 
The abdomen is of a short oval form, blunted at each end, and tolerably convex above 
it is of a pale clay-colour, covered thinly with yellowish-brown hairs; the four exterior 
spinners are moderately long, and of nearly equal length ; the genital aperture is rather large 
and of characteristic form. 
Sab . — Between Yangihissar and Sirikol, March 1874. 
6. — Drassus interemptor, sp. n., PI. I, Eig. 5, <? . 
Adult male : length 3§ lines. 
The cephalothorax is very similar in form to that of I). in fie t us, though rather narrower 
in front ; its colour is yellow-brown, and it is clothed pretty thickly with grey pubescence. 
The eyes ax’e rather small, but placed in the usual two transverse curved rows ; the 
foremost row, which is the shortest, is nearly straight, the hinder one considerably curved 
and the curves of both have their convexities directed backwards. The eyes of the hinder 
row are equidistant from each other, those of the central pair of this row being rather the 
smallest of the eight ; those of the fore-central pair are the largest, and form a line longer 
than the hind-centrals, the interval separating them being about equal to an eye’s diameter, 
and each is very nearly contiguous to the lateral of the same row next to it. The eyes 
of each lateral pair are placed a little obliquely, and are rather nearer together than 
those of the hinder row are to each other ; the longitudinal diameter of the trapezoid formed 
by the four central eyes is considerably greater than the transverse one ; the height of tfi e 
clypeus is about equal to the diameter of one of the fore-central eyes. 
The legs are strong and of tolerable length, and rather lighter in colour than the 
cephalothorax ; their relative length is 4, 1, 2, 3, and they are pretty thickly clothed with 
sandy-grey hairs (among which are some of a browner hue), bristles, and spines ; some of the 
latter are beneath the metatarsi and tibiae of those of the 1st and 2nd pairs, but the greater 
number are on the third aud fourth pairs. Each tarsus terminates with two claws, beneath 
which is a small claw-tuft ; and beneath the tarsi is a scopula extending a little way 
underneath the anterior portion of the metatarsi. 
The palpi are short, tolerably strong, and similar in their colour and armature to the 
legs. The humeral joint has several black spines on its upper side; the cubital joint is 
stronger and a little longer than the radial; the latter is furnished with longish bristly 
hairs, and expands at its fore-extremity, which is prolonged on the outer side into a tolerably 
strong, rather tapering, reddish-brown apophysis, terminating in an obtuse, flattened, corneous 
point ; the digital joint is large, oval, and of a browner hue than the rest ; the palpal organs 
are prominent and well developed; they are of a yellowish colour, traversed near the middle 
by a distinct yellow-brown spine-like fillet or band, close in front of which is a stron-,, 
curved, tapering, rcddisli-yellow-brown corneous process, with another very similar, bn 
smaller, in front of it ; a third, smaller still and apparently obtuse, being in front again, j uS 
below the fore-extremity of the joint. 
The falces are neither very long nor strong ; their direction is nearly vertical, and they 
are similar in colour to the cephalothorax ; their front surface is clothed with g re J L 
pubescence and some brown hairs and bristles. 
