TULLC4EEN, ARANE.5: FR. THE GRAN CHACO. 77 



kings. In front a transverse-oval spöt, behind a row of 

 träns verse along the midclle-line united stripes forming 

 a single large laterally dentate spöt. Sides of abdomen 

 white, ven ter with a large longitudinal black band. Spin- 

 ners black. 



Pedipalp conf. the fig. 40 a and b. 



Measurements. 



Total length 8,5 mm. 



Length of cephal o thorax . . . . . 3,7 » 



Breadth » » 3,4 >> 



Length » abdomen 5 » 



Breadth » >> '2,s » 



Length » 1st leg 13 » 



» » 2d » 8,6 » 



» >^ 3d >> 9,4 » 



» » 4th » 9,4 » 



A single male from Quinta, Prov. de Jujuy, Argentina. 



Siloca Sim. 



S. (?) Iiulbosa n. sp. (Pl. 10, fig. 41 a— e). 



Female. — Cephalothorax dark brown with black margin 

 and a paler longitudinal central band. Eyes surrounded by 

 black colour. It is broad oval, comparatively high with convex 

 cephalic profil, a little depressed between eyes. Central f ur- 

 ro w very distinct situated a little behind posterior eyes in 

 a little depression. Clypeus very inclined. The integument 

 has been clothed with white adpressed hairs. 



Eyes. Anterior row straight. Eyes of second row very 

 small situated in the middle between eyes of first and third 

 row. Eyes of the third row a little smaller than anterior 

 lateral ones. 



Cheliceres yellowish. Anterior margin of fang-groove bi- 

 dentate, posterior one with a bidentate carina (conf. the 

 fig. 41 d). 



Coxce of pedipalp yellowish, brownish towards the 

 base, not dentate at the exteriör apical angle. (Conf. the 

 fig. 41 c). 



Labnim rufous brown. 



