314 ARANEIDAX FAUNA OF SANTA CRUZ, 



Labium rather longer than broad, constricted laterally near 

 the base, apex obtusely truncated. 



Sternum, shield-shaped, smooth, hairy. 

 Abdom,en obovate, densely pilose. 

 Mamm,illce moderately long, densely pilose. 



17. Gnathopalystes ferox, sp.nov. 



(Plate XXV., figs, 5, 5a, bh, 5c.) • 



2- Cephalothorax 8-4 mm. long, T'l mm. broad ; abdomen 

 12-7 mm. long, 9 mm. broad. 



Cephalothorax broad, arched, densely pilose, yellowish. Caput 

 arched, attenuated, truncated in front, yellowish at base, ocular 

 area tawny, densely pilose. Clypeus broad, arched, median 

 depression a deep, elongated longitudinal cleft, radial grooves 

 visible, densely pilose, yellowish. Marginal hand broad, of a pale 

 colour, and fringed with long, pale, yellowish hairs. 



Eyes distributed over two rows, of which the anterior is the 

 shortest; of the four comprising this row, the median pair are 

 much the smallest, and these are separated from each other by a 

 space equal to once their individual diameter, but are only just 

 separated from their lateral neighbours, which are by far the 

 largest of the eight; those of the posterior row are of equal size 

 and form a straight line, and are slightly larger than the anterior 

 median eyes; they are separated from each other by a space equal 

 to fully twice their individual diameter, whilst the space that 

 intervenes between the two rows is equal to about three times 

 the diameter of one of the posterior eyes. 



Legs yellowish, long, robust, densely pilose, armed with long, 

 strong, closely adpressed dark brown spines; tarsal claws long, 

 armed near their base with a row of strong teeth; each tarsus 

 furnished with scopula. Relative lengths : 1, 2, 4, 3. 



Palpi long, robust, similar in colour and armature to legs. 



Falces long, robust, subporrected, divergent at tips, densely 

 clothed with coarse yellowish bristles ; the base is yellowish, 

 deepening to tawny, apices dark brown; superior margin of each 

 falx armed near base with one moderately long and one small 



