EPISINUS.—MIMETUS. 133 
the eyes of each lateral pair are contiguous to each other; those of the fore-central pair, which are on a 
strong prominence, form a longer line than the hind-centrals, and each is very close but not quite contiguous 
(about half a diameter) to the fore-lateral eye on its side, the fore-centrals and the lateral eyes forming a 
semicircle. The height of the clypeus, which is strongly impressed below the eyes, is less than half that 
of the facial space. 
Legs very long, 1, 4, 2, 3, slender, rather paler than the cephalothorax, furnished with hairs and a few fine 
spine-like bristles on the genue and tibie. 
Falces rather long, weak, straight, and similar in colour to the legs. 
Palpi long, cubital and radial joints equal (or the latter, perhaps, slightly shortest), and a little clavate at 
their fore extremities ; digital joints less in length than the radial, narrow-oval or oblong, their convex 
sides directed towards each other, and of a yellow-brown colour, the rest of the palpus being similar in 
colour to the legs. Palpal organs compact but rather complex. 
Maville, labium, and sternum similar to the legs in colour, the sternum having a broad rather suffused dusky- 
blackish marginal border. 
Abdomen very narrow-oval or oblong, pointed behind, somewhat cylindrical in form, of a pale dull brownish- 
yellow hue, marked above and on the sides with blackish marks, from which it is difficult to describe 
any very distinct pattern; the most regular are a series of several short diminishing transverse lines of 
black just above the spinners, crossed by a median longitudinal line. The underside forms a broad dusky 
brownish longitudinal band. 
Hab. Mexico, Teapa in Tabasco (H. H. Smith). 
This spider is nearly allied to, but appears to be quite distinct from, Episinus cognatus 
(antea, p. 109). 
MIMETUS, Hentz. 
Mimetus bigibbosus, sp. n. 
Adult male, length 13 lines. 
The cephalothorax, legs, palpi, and sternum are pale yellow, the falces tinged with yellow-brown ; the maxille 
and labium dark brown towards their base. The ocular area, which is rather prominent, is tinged with 
yellow-brown, and there are some small markings of a similar colour on the occiput, as well as a largish 
somewhat quadrate patch of the same at the thoracic junction ; the cephalothorax has also a narrow dusky 
marginal border. The legs are faintly but not very regularly annulated with yellow-brown. 
The eyes are unequal, those of the fore-central pair much the largest, near together, but not contiguous. The 
four central eyes form an oblong narrow trapezoid, and are placed on a strong somewhat tubercular 
prominence. The lateral pairs are at a little distance on either side ; their eyes are small, contiguous to 
each other and seated on a prominence of less size than those of the fore-centrals. The hind-centrals are 
almost contiguous to each other. The height of the clypeus is equal to nearly half that of the facial 
space. 
The legs are long, rather slender, 1, 2, 4,3; 1 and 2 much the longest and strongest. They are furnished 
with hairs, bristles, and spines, some of the latter, especially on the tibie and metatarsi, very long; 
between the long spines on the inner side of the metatarsi are others much shorter, and graduating in 
length between each two of the long ones, but becoming shorter towards the posterior end of the joint. 
The palpi are moderately long and slender. The cubital joint is very short, nodiform or prominent in front, 
where there are two very long curved spine-like tapering bristles directed forwards ; the radial joint is 
rather long, strongly clavate at its anterior extremity, and furnished towards the anterior extremity with 
some longish bristles of different lengths. The digital joints are rather small, short-oval, their convex 
sides directed to each other, and furnished with long bristly hairs. The palpal organs are prominent, com- 
plex, with several curved corneous processes and spines connected with them, 
The falces are moderately long, not very strong, straight. 
The maaille are of moderate length, straight, a little inclined to the labium, and rather pointed at their 
extremity on the outer side. 
The labiwm is a little more than half the length of the maxille, and somewhat obtusely pointed at the apex. 
