XYSTICUS.—SYNAEMA. 71 
there being one or two less distinct on the hinder half; the fore corners of the abdomen are also suffused 
with white. The sides and underside are brownish-yellow; rugulose, The genital aperture is small but 
of characteristic form and structure. 
Hab, Guatemata, Coban (Sarq). 
Xysticus advectus, sp. n. 
Adult female, length rather over 24 lines. 
In its general form, colour, and appearance this spider calls to mind various European species of the X. cris- 
tatus-group. 
The cephalothorax has its sides of a deep brown, mottled and irregularly marked with a lighter hue; the broad 
central band, the larger portion of which in front forms the normal spade-shaped marking, is of a light 
brown colour, darker across the fore end, where it includes the posterior eyes, and bisected longitudinally 
by a dark brown line interrupted by two or three pale spots; the spade-mark is delineated by a narrow 
white marginal line, the central band behind this marking being of a yellowish- white hue. The clypeus 
and ocular area are yellowish-white, this colour forming a transverse well-defined oblong marking whose 
four corners are produced and divergent. The cephalothorax is furnished with strong bristles, strongest 
and most numerous on the upper part and in front. The height of the clypeus is equal to nearly half 
that of the facial space. 
The eyes are normal. 
The falces are strong, conical, dark brown at the base, where they have some strong bristles, yellowish-white 
across the middle, and paler brown at the extremity. 
The sternum is brownish-yellow mottled with white, spotted with dark red-brown and broadly bordered with 
blackish-red-brown anteriorly. 
The legs are rather short, moderately strong, furnished in the ordinary way with spines, bristles, and hairs. 
They are of a pale dull yellowish hue, mottled and indistinctly lined with white, and spotted and marked 
with dark reddish-brown. The markings on the tibie, genue, and metatarsi of the first two pairs are more 
distinctly linear than the rest, and the basal joints (coxa) of all the legs are marked with three longitudinal 
broken dark brown lines with white interspaces. 
The abdomen is of the ordinary form. It is of a dull yellowish colour, marked and mottled with white, and 
has some broken blackish lines and markings indicating the normal angulated central longitudinal pattern, 
and the sides towards the hinder part have some oblique lines of black spots. Its upperside is thinly 
furnished with short strongish black prominent bristles. The genital aperture is small, but of character- 
istic form. 
Hab. GuatTEMALA, Chicoyoito (Sarg). 
SYN/EMA, Simon. 
Synema bimaculata, sp. n. 
Adult female, length 2 lines; adult male, length 13 line. 
The cephalothorax (Q) is orange-yellow, paler at and near the thoracic junction, and with a slender black 
marginal line; on and near the sides and front of the caput are a few long black bristles. The height of 
the clypeus is a little less than half that of the facial space. 
The legs are moderate in length and strength, brownish-orange-yellow ; the first two pairs have the femora and 
genus, as well as the base and extremity of the tibice (leaving an orange-brown annulus near the middle 
of the latter), almost entirely rich dark brown ; the two posterior pairs, as well as the falces, maaille, 
labium, aud sternum, are yellow. The legs are furnished with spines, chiefly on the metatarsi, femora, and 
tibie of the first and second pairs. 
The eyes are in the normal position—two almost concentric curved rows, the anterior row rather the most 
curved; all are on greyish tubercles, those of the lateral pairs the strongest. The four central eyes form 
