82 Mr. F. 0. P. Cambridge on Cteniform Spiders 



Carapace mahogany-brown, with fine pale central line ; 

 clothed with fine yellow-grey pubescence. 



Ahdomen brown, clothed with black and grey hairs, mixed; 

 with a pale central dorsal line extending from the anterior 

 margin to the spiimers ; shoulders black, a series of four 

 black spots on each side ; ventral surface with a broad wedge- 

 shaped central black band, with two white spots at base and 

 a white margin extending from the stigmatic orifice to the 

 spinners. 



Legs mahogany-brown above ; sternum and underside of 

 coxEe and femora pale yellow-brown ; clothed with fine silky 

 yellow-grey hairs. 



Carapjace gibbous behind ; dorsal profile slightly concave. 



Ei/es. Laterals on a very slight tubercle; anterior much 

 smaller than posterior, one third their diameter. Centrals 

 forming a quadrangle a little broader than long, posteriors 

 larger. Outer margin of fang-groove armed with 5 teeth, inner 

 with 3. 



Legs. Spinous armature similar to others of the group. 

 Tibiae i. and ii. with five pairs of spines beneath. Tarsi alone 

 of ail four pairs bearing a scopula beneath. Tarsal claws 2, 

 with four long broad denticules beneath. Claw-tuft present. 



Palpus and organs (PI. III. fig. vii. a). 



A single adult male of this spider was taken by myself in 

 the Forest of Santarem, February ISUG. 



Clenus albofasciatusj sp. n., 2 . 



Ilab. Forest, Santarem. 



Type in coll. Brit. Mus. Nat. Hist. London, 1896. 



$. Total length (including mandibles) 14 mm. 



Colour. — Carapace dark mahogany-brown, with broad 

 central band of golden-grey pubescence, and a small spot on 

 clypeus above base of each mandible. 



Abdomen clothed with black and golden-orange hairs, with 

 a basal, central, dorsal, longitudinal, pale golden-yellow band, 

 extending to the middle of the upperside ; shoulders very 

 black. Ventral surlace dark brown, with four longitudinal 

 rows of pale spots. 



Structure. — Carapace gibbous and raised behind, dorsal 

 profile slightly concave. Lateral posterior eyes on a distinct 

 tubercle ; lateral anteriors very small, their diameter less than 

 half that of the former and distant from them twice their 

 diameter. Centrals formini,^ a quadrangle a little broader 

 than long; posteriors slightily larger (PI. III. fig. i. d). 



Second row of eyes straight by anterior margins. Lower 

 margin of mandibles with i> teeth, upper with 3. 



