214 ARANEIDEA. 
Eyes in normal position. The two lateral pairs are each seated on a strong geminated greyish tubercle, 2. e. each 
eye on a subconical tubercle, the two tubercles running one into the other. The central quadrangle 
is broader than long, the length of the anterior side being a very little greater than the length of the 
quadrangle. The eyes of each row respectively are equally separated ; the fore-laterals are largest, and 
the hind-centrals, apparently, the smallest. 
Legs very unequal in length, 1, 2, 4,3; those of the 1st and 2nd pairs very long, at least three times or 
more the length of the spider. Spines tolerably strong, at least those on the femora; those on the tibiz 
and metatarsi are long but fine. The colour of the legs is like that of the cephalothorax, perhaps a little 
clearer and paler. The first and second pairs have a small annulus at the anterior extremity of the 
femora and genue, and the posterior extremity of the tibie, together with a broad annulus at the anterior 
extremity of the tibie, the fore half also of the metatarsi and tarsi, dark brightish red-brown. The third 
and fourth pairs are very short and unicolorous. 
Palpi short, yellow, furnished with spines and bristles. Cubital joint short, strong. Radial joint shorter, with 
its fore extremity on the outer side produced into a long somewhat tapering apophysis, as long as or 
longer than the joint, and having two prominences on its outer side, and ending with a small curved spine- 
like point or claw; this apophysis is very near to the digital joint, which is oval and of tolerable size. 
Palpal organs simple, consisting of a large, circular, very convex lobe, from the inner fore extremity of 
which issues a slender, nearly circularly-curved, black spine, whose filiform point is beneath the fore 
end near the outer side of the digital joint. 
Falces moderately long, strong, subconical, similar in colour to the cephalothorax. 
Maville, labium, and sternum normal, and similar to the legs in colour. 
The abdomen is exactly oval in shape, rather flattened above, of a dull pale orange-yellow tinged with brown, 
with a short longitudinal central deep blackish-red-brown bar on the fore half of the upperside, and a 
thin lateral marginal line or border of the same colour. The hinder half of the upperside has two 
longitudinal converging rows of deep blackish-red-brown spots or blotches, being, no doubt, the remnants of 
the normal angular bars or chevrons. The upperside of the abdomen is thinly covered with strong, 
erect, black, spine-like bristles. 
Hab. Guatemaua, Cubilguitz (Sarg). 
This spider is nearly allied tv, but quite distinct from, S. cirripes, Cambr. (antea, 
p. 79, t. 10. fig. 11). 
LIOCRANUM, L. Koch. 
Liocranum mirabile, sp. n. 
Adult male, length 2 lines ; adult female, length 2} lines. 
Cephalothorax broadish-oval, broadly truncated in front ; lateral marginal constriction at the caput gradual and 
slight ; upper convexity moderate ; the profile forming an even slightly curved line, with a small notch 
at the thoracic junction. Colour yellow-brown, clearer yellow at the occiput, the sides and converging 
lines dusky blackish. Clypeus very low, height not half the diameter of a fore-central eye. 
Eyes of moderate size, subequal; anterior row nearly straight ; of the posterior row, which is much the lougest 
and curved, the convexity of the curve is directed backwards. The central quadrangle is broader than 
long, the anterior side shortest. The interval between the hind-central pair is distinctly but not consi- 
derably greater than that between each and the hind-lateral eye next to it. The interval between the 
fore-centrals is about half a diameter, that between each of these and the fore-lateral next to it is very 
small, much less than between the fore-centrals. 
Legs moderate in length and strength, 4, 2, 1,3; spines normal; colour brownish-yellow, the greater part of 
the femora and tibiee suffused with dusky blackish. 
Falces moderate in length and strength, slightly diverging at their extremities ; colour dusky yellow-brown. 
Palpt moderate in length. The humeral joint has three short spines in a transverse row at the fore extremity 
on the upperside and a single one behind them; cubital joint short, rather bent ; radial joint longer and 
stronger, somewhat tumid on the upperside, where it is furnished, especially towards the fore extremity, 
