260 ARANEIDEA. 
Eyes. The posterior row is curved slightly, the convexity of the curve directed backwards ; the anterior row, if 
looked at on a level from the front, has its convexity directed upwards, but when seen in profile it is 
directed strongly forwards. The central eyes of the posterior row are distinctly further from each other 
than from the laterals; the four central eyes form a square, whose anterior side is shortest. 
Legs long, slender, 1, 2, 4, 3. Colour dull pale greenish-yellow-brown, tinged with a deeper hue at the joints. 
Falces long, tolerably strong, divergent, similar in colour to the cephalothorax. 
Palpi moderately long ; cubital joint very claviform, longer and stronger than the radial, and longitudinally 
indented or channelled behind; the radial joint is obtusely produced at its extremity on the outer side ; 
digital joint large-oval, obtuse at its fore extremity; palpal organs compact, well developed, and with a 
strongish, oblique, closely fitting, dark red-brown spine near the middle. 
Mazille normal, rather darker in colour than the cephalothorax. 
Labium and sternum normal and of a dark brown hue. 
Abdomen too much crushed and injured to trace the pattern, but its form appeared to be oval, tolerably convex 
above and projecting backwards over the spinners, but whether with or without eminences could not be 
ascertained. Its colour seemed to be of a sooty-brown, marked with black in places, and there were 
various lines and patches of silvery-metallic spots visible. 
Hab. Guatemata, Santa Ana (Sarg). 
This spider is possibly the male of A. swbdola, Cambr. 
Argyrodes subdola, sp. n. 
Adult female, length to upper extremity of abdomen 13 lines, to spinners slightly less than 1 line; length of 
another example rather less than 1 line to upper extremity of abdomen, and to spinners ? of a line. 
The cephalothorax of this species is of ordinary form. Clypeus very prominent below, and its height exceeds 
half that of the facial space; colour yellowish-brown. 
Eyes in normal general position ; posterior row straight ; anterior row much curved, the convexity of the curve 
directed forwards ; the prominence on which the fore-central eyes (which are much the largest) are placed 
is strong and rounded. The central quadrangle is large, broader than long, and rather broader in front 
than behind; the hind-central pair are, at least, double the distance from each other that they are from 
the hind-laterals. 
Legs moderately long, very slender, 1, 4, 2, 3, or 1, 2, 4, 3, of a uniform pale brownish-yellow colour. 
Falces strong, similar in colour to the cephalothorax. 
Maxille, labium, and sternum dark yellow-brown. 
Abdomen large, much elevated, and rather rounded at the posterior extremity, which is wider than the anterior ; 
on each side of the highest part is a low, subangular or bluntish prominence, and a little way below them 
towards the spinners in the median line is another prominence rather larger, obtuse, and somewhat cleft 
or indented at its extremity by a transverse indentation. The colour of the abdomen is dark brown, the 
hinder slope black, the sides blackish ; on the upperside there is an angular silvery line on each side of 
the fore part ; the inner extremities of these lines do not meet, but just behind them are four silvery spots 
in a small quadrangle, the two hinder spots forming sometimes an obtuse angular bar or chevron; two 
larger, almost contiguous, silvery spots are placed just in front of the posterior prominences, and two 
others nearly behind it, followed towards the spinners by two other pairs of smaller similar spots, those 
of the pair nearest the spinners being wider apart than the others. On each side of the hinder slope is a 
long, vertical, tapering silvery stripe, from the upper end of which a silvery diffused stripe runs towards 
the fore end of the abdomen. ‘The underside has a large, well-defined, transverse, obtuse or somewhat 
pentagonal silvery bar across the middle, and between it and the spinners are two small silvery spots 
in a transverse line. The genital prominence and process are deep brown and of characteristic form. 
Hab. GuateMa.a, San Antonio, near the city of Guatemala (Sarg). 
