68 _ ARANEIDEA. » 
The eyes are small, those of the fore central pair rather the largest ; the two rows are straight, though (for 
the same reasons given in respect to O. manifestus) apparently ¢ curved ; those of each row respectively 
are equidistant from each other. The four centrals describe a square whose anterior side is slightly, but 
perceptibly, shorter than the other sides. The height of the clypeus is equal to the diameter of a fore 
central eye. 
The legs, 2, 1, 4, 3, are long and tolerably strong ; they are clothed with rather long pale hairs, also, but not 
thickly, with long slender spines; and there is a dense, very broad, pad-like, dark mouse-brown scopula 
beneath the tarsi and metatarsi, with claw-tuft. The scopula gives a broad dark plumigerous appearance 
to the legs. . 
The falces are massive, a little projecting. Profile convex, and furnished with coarse reddish hairs in front. 
The mawille are moderately long, straight, much enlarged at the extremity, and similar to the falces in 
colour. 
The labium is nearly quadrate, a little broader than long, with the corners of the apex slightly rounded ; its 
colour is like that of the maxille. 
The sternum is short, heart-shaped, orange-yellow. 
The abdomen is large, oval. The spinners are short and compact, and the genital aperture is rather large, but 
of simple and characteristic form. The upperside of the abdomen appears to be destitute of pattern, and 
only clothed thickly with fine pale hairs. 
Hab. Guatemata, Petexbatun and Antigua (Sarg). 
Olios manifestus, sp. n. 
Adult female, length 44 lines ; adult male, length 33 lines. 
Female. The cephalothorax is equal in length and breadth; profile of caput rather flattened convex, broad and 
obtuse, nearly squarely truncate, at the eyes; its colour is orange-yellow, the caput has a few black bristly 
hairs on the margins and in the median line, and the normal converging indentations are faintly marked 
by dusky lines. 
The eycs are in two transverse rows, of which the anterior is shortest and straight, though owing to the 
slightly curved outline of the caput it has the appearance of being also curved, and the same may be said 
of the posterior row ; owing, however, to the curvature of the surface of that part the two rows are not, 
as otherwise they would be, concentric, but the extremities converge a little towards each other. They 
are small, all on slight black spots; those of the fore central pair are the largest, but not greatly so; 
those of the pasterior row are of equal size, the interval between the two centrals being rather greater 
than that between each and the lateral on its side, and exceeding two diameters ; those of the anterior 
row are equidistant from each other, the interval between the two centrals being slightly more than a 
diameter. The four central eyes form a trapezoid whose posterior side is perceptibly the longest, the 
anterior being slightly the shortest. The height of the clypeus appears to be rather less than a diameter 
of one of the fore central eyes. 
The legs are long, rather slender, 2, 1, 4, 3, orange-yellow in colour, speckled pretty thickly, chiefly below: 
with small, deep red-brown spots and specks, slightly hairy, and armed with long, but not very numerous 
spines. There is a thin dusky scopula beneath the tarsi and metatarsi, and a strongish claw-tuft at the 
extremity of the former. 
The palpi are similar to the legs in colour and armature. 
The falces are tolerably strong, straight, nearly vertical, convex in front, similar in colour to the cephalothorax, 
furnished with bristly and other hairs, and each is marked with a longitudinal blackish line in front, 
rather towards the outer side, and fining off to nothing a little below the middle. 
The mawillw are short, slightly inclined to the labium, enlarged and rounded at the extremity, and of a rather 
paler hue than the cephalothorax. 
The labium is shorter than broad, the sides parallel, the apex very slightly curved. Colour like that of the 
maxille and sternum, which last is broad heart-shaped. 
The abdomen is oval, of moderate size, rather truncate anteriorly, and of a brownish-orange colour, thinly clothed 
with pale greyish hairs; on the fore half of the upperside is a slightly darker longitudinal central tapering 
marking whose margins are indicated by an imperfect reddish-brown line, and following this to the 
