150 PROCEEDINGS OF THE NATIONAL MUSEUM vol. H5 



longitudinal grooves, slight indentation present at apex of anterior 

 curving groove. Anterior longitudinal grooves extending laterally 

 and anteriorly, terminating blindly slightly posterior to eyes and close 

 to lateral margins. Lateral thickenings present as narrow bands 

 running from just anterior to junction of cross and longitudinal grooves 

 laterally and posteriorly, terminating in region of lateral margin. 

 Light median groove present, extending from slight indentation at apex 

 of cross groove to middle of posterior margin of median thoracic area. 

 Eyes placed in anterior fourth of cephalothorax, between two short, 

 longitudinal grooves; eye region of female two smaU, rounded areas, 

 one on either side of two narrow, elongate regions slightly swollen 

 posteriorly and contiguous on median longitudinal axis of body 

 (fig. 4a). 



Cephalothorax of male slightly different from that of female; widest 

 in posterior medial region, anterior to widest point in female. Pos- 

 terior margin of protruding median thoracic area convex, without 

 median concavity of female. Cephalothoracic grooves similar to 

 those of female though cross groove without indentation at apex. 

 Longitudinal bars in eye region not as distinct as in female; contiguous 

 elongations of female absent in male, eyes with inner margins touching 

 on median longitudinal axis of body (fig. 4b). 



Free fom-th thoracic leg-bearing segment of female short, nar- 

 rower at junction with third segment than at junction with genital 

 segment. Fourth thoracic legs attached to widest point of segment, 

 adjacent to junction with genital segment^ Divisions distinct be- 

 tween cephalothorax and fourth thoracic leg-bearing segment and 

 between fourth thoracic leg-bearing segment and genital segment. 



Fom-th thoracic legs of male joined to middle of thoracic segment, 

 not adjacent to junction with genital segment, as in female. 



Genital segment of female ovoid, widest posteriorly. Genital seg- 

 ment with broadly rounded lateral margins; posterior margins convex 

 laterally, concave medially, at junction with abdomen. Fifth legs 

 visible as three minute, plumose setae, two arising from slight pro- 

 jection just lateral to opening of oviduct, third from minute projection 

 just lateral and anterior to first two (figs. 4a,c). 



Genital segment of male slightly broader across posterior end than 

 across anterior end. Posterior margin convex. Fifth and sixth legs 

 distinct, fifth as three plumose setae from lateral region of posterior 

 margin, two arising from single, slight protrusion, third just anteriorly, 

 from surface of genital segment. Sixth legs of two plumose setae aris- 

 ing from single, lobate process extending posteriorly slightly past 

 genital segment; inner seta almost twice length of outer (figs. 4b, c). 



Abdomen of female short, length about one-fifth greatest length of 

 genital segment; width sHghtly greater than greatest length (fig. 4c). 



