330) Dr. i\rollo-Leitrio on some 



trjinsvcrsc rows of very small tubercles. Free dorsal seg- 

 ments unarmed, with a row of granules ; dorsal anal plate 

 unevenly granular. Coxa iv. granular, with an apical 

 outer spur, obliquely directed backwards ; this spur is short, 

 blunt, and without accessory bi'anch. Trocliautcr iv. un- 

 armed ; femur right with stout spines. Pcdipalps shorter 

 than body, the femur with an apical inner spine. Ventral 

 surface roast-yellow ; the stigmatic segment bordered with 

 black. Cephalothorax chestnut, with two large })ale yellow 

 spots ; fields i. to iv. as the cephalothorax, the high spines 

 on iii. olive-yellow ; marginal fields dark olive-brown with 

 tips of the tubercles yellowish. Pedii)alps and legs olive- 

 brown ; posterior legs darker with the coxal spur blackish. 



Hub. Itatyaya (Rio de Janeiro). Coll. Carlos Moreira. 



Type in the Natiomd Museum. 



Genus Acanthogonyleptes, nov. 



Eye- turret closer to the anterior margin of the cephalo- 

 thorax than to first transverse groove. Cephalothorax 

 narrow, parallel-sided ; lateral margins of the abdominal 

 scutum evenly rounded to transverse groove iii., 

 forming a right angle with the binder margin. Dorsal 

 scutum witli four transverse grooves, i. and ii. united by 

 longitudinal one. Fields i., ii., and iii. with two median 

 tiibercles ; iv. and free dorsal segments i. and ii. unarmed; 

 iii. witb a median high rone. Pedii)alps shorter than body ; 

 the femur with an apical inner spine. Tarsus i. with six 

 joints, ii., iii., and iv. with more than six ; coxai i. to iii. 

 short, slender, and parallel ; iv. stouter and longer than the 

 others together. Chelieeraj weak and normal in both 

 sexes. Posterior legs in male with spurs and stout spines. 

 Tarsi iii. and iv. with apical claws without teeth and with 

 pseudonychium. 



Type. 



Acanthogonyleptes pulcher, sp. u. 



(J . — 8 mm. 



Anterior margin of the cephalothorax with three small 

 spines at the lateral corners. Eye-turret much closer 

 to anterior margin than to first transverse groove, 

 very high, with two small close tubercles. Ce[)halothorax 

 narrow and smooth. Fields i,, ii., and iii. of the alidominal 

 dorsal scutum «itli two median tubercles. The tubercles of 

 ii. higher tiian of i., and those of iii. the highest; eveiy field 

 Avith scattered granules ; field iv. and free dorsal segments i. 



