TMARUS.—OXYOPEIDON, 139 
TMARUS, Simon. 
Tmarus mendax, sp. n. 
Adult female, length slightly over 2 lines. 
In general form and structure this species is normal. 
The cephalothorax is brightish yellow-brown, marked with black and white on the sides, and rather paler along 
the middle, A white line crosses the caput just behind the hind-central eyes, and joins a transverse 
whitish patch in the middle of the ocular area by a well-defined, central, longitudinal white line; from 
each end of the patch above mentioned a curved white line runs backwards, the two meeting at the 
thoracic junction, where there is a small cruciform white marking, and where also two converging lateral, 
white, more or less broken, lines meet. The cephalothorax is thinly furnished with prominent bristly 
hairs, springing from minute tubercles. The height of the prominent clypeus, which is pale whitish in 
the middle, is equal to half that of the facial space; the clypeus is also bounded laterally by a white 
line. 
The eyes are small, in the ordinary position, and the laterals are seated on strong tubercles. The four centrals 
form a trapezoid, whose width behind is greater than its length, and its anterior side is shortest. 
The legs are neither very long nor strong, 2, 1, 4, 3; they are of a pale dull yellowish colour, marked slightly 
with white along the upperside. The undersides of the femora of the first and second pairs, and the 
anterior extremities of the tibie, are suffused with brown, and they have a somewhat spotty appearance 
owing to the dark bases from which the short hairs and a few fine spines spring. The third and fourth 
pairs are simply pale yellowish, whitish along the upperside, and with a dark marking on the outer sides 
of the genual joints. 
The falces are not very long nor strong, subconical, yellow-brown, marked in front with white, 
The palpi, maxilla, labium, and sternum are pale yellowish. 
The abdomen is broader behind than in front, and has a subconical prominence at the hinder extremity 0 of the 
upperside, whence the slope is nearly vertical to the spinners ; it is of a whitish dull chalky hue, a little 
suffused with a darker colour on the sides of the upper part, leaving an obscurely dentated, central, 
longitudinal, whitish band along the upperside, furnished with a few bristles which spring from minute 
deep red-brown tubercles ; the hinder slope (extending a little way on either side in front) is white, and 
on each side of the posterior prominence are two very small subconical prominences in an oblique line 
directed downwards and a little forwards. The underside has a broad, central, longitudinal, drab-brown 
band, with lateral diffused stripes of white. The genital aperture is simple but characteristic in form, 
Hab. Mexico, Venta de Zopilote, 20 miles south of Mescala, Guerrero, alt. 2800 feet 
(H. H. Smith). 
OXYOPEIDON, gen. nov. (Oxyopide). 
Cephalothorax short, oblong, massive, with scarcely perceptible grooves and indentations, hardly longer than 
broad, its hinder slope very abrupt and steep. . 
Eyes unequal in size, widely spread, occupying the whole width of the caput. They may be described as in 
two lateral groups of three each in a triangle; and between them, either in a line with the anterior eyes 
of the triangle (which are the largest of the eight) or a little way in front of them (towards the falces), 
are two others, near together, very minute, but not contiguous to each other, in a transverse line. 
Legs short, not very strong, nor differing much in length ; the second pair is perhaps the longest, and the third 
shortest ; all the femora, tibie, and metatarsi are furnished with long spines. 
Falces strong, moderately long, subconical. 
Mazille moderately long, straight, a little enlarged in width towards their extremity, where they are very 
obliquely and rather roundly truncated on the outer side. 
Labium oblong, more than half the length of the maxille. 
Sternum small, somewhat subtriangular, longer than broad, its posterior extremity drawn out into a long fine 
point between the cox of the fourth pair of legs. 
Abdomen of moderate size, highest in front, and sloping gradually to the spinners, 
TT 2 
