258 ARANEIDEA. 
line, and at the lower part of the sides are several other ill-defined blackish markings. The sides are rather 
paler than the upperside. Genital aperture behind a strongish prominence and of characteristic form. 
Hab. Panama, Bugaba (Champion). 
ARGYRODES, Simon. 
Argyrodes furcata, sp. n. 
Adult female, length to spinners 1 line, to extremity of abdomen from spinners 13 lines. 
This spider is of normal form and general appearance. 
Cephalothorax of a broad oblong-oval form, drawn out in front into a projecting clypeus (which exceeds in extent 
half the facial space), the hinder extremity broad and truncate. Ocular area elevated. Colour dull 
greenish-yellow-brown, obscurely marked and clouded with blackish. 
Eyes about equal in size, those of the posterior row in a straight transverse line, the two centrals considerably 
further apart than from the laterals of the same row. The central quadrangle is very nearly a square, 
the anterior side slightly longer than the posterior. Laterals on tubercles and contiguous to each other, 
and forming a line which lies at right angles to the posterior row, each fore-lateral less than half a diameter 
from the fore-central on its side. The eyes of the lateral pairs and hind-centrals pearly-white, the fore- 
centrals dark. 
Legs tolerably long, slender, 1, 4, 2, 3, furnished with hairs only; colour greenish-yellow-brown, slightly 
clouded with blackish at the fore extremities of the joints. 
Falces, maxille, labium, and sternum similar in colour to the legs; the sternum has a few prominent bristles on 
its surface issuing from minute tubercles. 
Abdomen oval, with its hinder part greatly produced into a long caudate shape, cleft in a fish-tail form at its 
extremity ; it is of a dark brown colour, thickly covered with nearly coalescing silvery-white spots and 
markings, leaving a longitudinal central brown stripe on the upperside, whose extremity is drawn out into 
a fine line at the furcate end of the abdomen; a little in front of this are two oblique indistinct brown 
lines converging near the fork, and the sides of the produced part of the abdomen are marked by a broadish 
but rather indefinite curved brown bar. The spinners are rather further from the hinder extremity of the 
abdomen and its fore end on the upperside. Genital aperture and process small, dark reddish-brown, of 
characteristic form, and placed behind a largish, convex, semicircular prominence. 
Hab. Mexico, Omilteme in Guerrero 9500 feet (7. H. Smith). 
Argyrodes maculosa, sp. n. 
Adult female, length 1 line. 
Cephalothorax of somewhat oblong-oval form, broudest and truncate behind, rounded in front. Caput rather 
prominent at the fore extremity. Clypeus prominent and rounded below, its height exceeding half that 
of the facial space. Colour deep brown. 
Eyes in the usual position. The four centrals form a large square, the anterior pair largest of the eight. Those 
of each lateral pair very nearly contiguous to each other, and placed obliquely, the anterior one in a 
straight line with the fore-central pair; the hind-centrals are much further from each other than from 
the hind-laterals, and the fore-centrals also are much further from each other than from the fore-laterals. 
Legs moderately long, slender, 1, 2, 4, 8. Colour yellow, annulated with dark brown. 
Falces strong, yellow-brown. 
Mawille, labium, and sternum dark brown. 
Abdomen nearly globular, with three prominences of about equal length and strength—one on each side 
towards the hinder extremity, of a conical form ; the third a little nearer to the spinners, more cylindrical, 
and bifid at its termination. The upperside and posterior slope are black, marked with silvery pearl-like 
spots, those in front of each of the conical prominences forming a somewhat transverse curved line, whose 
inner extremities unite in an angle between the prominences. Some larger spots surround the base 
of the bifid prominences; from the outer end of the curved line on each side is another line of spots 
running forwards and nearly meeting in an angle at the middle of the fore extremity. The sides are of a 
