244 bulletin: museum of comparative zoology. 



times that of the anterior. Anterior row of eyes a little procurved; 

 median eyes carried forward on a conspicuously bulging tubercle, 

 six sevenths their diameter apart, distinctly larger than the posterior 

 medians and much larger than the laterals. Area of median eyes 

 wider behind than in front in about ratio 10:9. Clypeus viewed in 

 projection directly from in front distinctly narrower than anterior 

 median eye. 



Sternum sub triangular, acutely pointed caudad. Winder than 

 long in about ratio 22:19. 



Labium with apical portion subtriangular as usual. Endites typi- 

 cal. 



Spines of legs few, moderate in length. 



Locality. — Panama, June. (Type, M. C. Z. 210, one male). 



Acacesia peruviana, sp. nov. 

 Plate 18, fig. 6. 



Carapace brown. Sternum a paler brown. Legs brown, with the 

 femora of first pair black except at ends, the femur of leg II also dark 

 except proximally, the femora of posterior pairs dark at distal end 

 only. Abdomen above with a dusky or blackish subtriangular mark 

 or folium with wavy edges, this area embracing a wavy edged sagit- 

 tate mark in its anterior half much as in foliata; but the folium nar- 

 rower and more elongate; venter marked with a deep black median 

 longitudinal stripe from the epigynum to the spinnerets, this narrow- 

 ing moderately caudad. 



Median eyes elevated on a conspicuous rounded tubercle projecting 

 dorsocephalad. Posterior row of eyes strongly recurved;, median 

 eyes facing ectad on tubercle, once and a half their diameter apart 

 or nearly so. Lateral eyes not elevated on a tubercle, separated by 

 more than their radius, the anterior one the larger. Anterior row of 

 eyes substraight; median eyes a little smaller than the posterior medi- 

 ans, nearly twice their diameter apart. Area of median eyes slightly 

 wider than long, of equal width anteriorly and posteriorly. Sternum 

 with a short triangular process at caudal end; longer than wide in 

 ratio 6.5 : 4.5. 



Teeth of lower margin of furrow of chelicera three, these small 

 well separated. 



Legs with spines of tibiae few, very slender, more sparse on the 

 metatarsi. Anterior legs much longer than the posterior. 



