Species of Opisthophthalmus. 165 



eye-tubercle, not forked anteriorly (rarely with a partially developed 

 fork). 



Terfja smooth and shiny, the last segment granular at the sides. 



Sterna. The fifth segment with low transverse granules in the 

 middle, the third and fourth segments often with traces of a weak 

 granulation in the middle, the sternal segments otherwise smooth 

 and shiny. 



Cauda weak and very short, being only 2f times as long as the 

 carapace ; its upper surface smooth, or with a few granules in seg- 

 ment 1 ; upper crests weak, almost smooth, rarely weakly granular, 

 terminating posteriorly with an enlarged tooth in segments 2-4, 

 obsolete (rarely normally developed) in segment 5 ; upper lateral 

 crests nearly smooth or weakly granular, absent from posterior part 

 of fifth segment; inferior lateral keels weakly granular or nearly 

 obsolete in segments 1 and 2, weak and nearly smooth in segment 3, 

 granular in segment 4, serrated in segment 5 ; infero-median keels 

 replaced by coarse, broadly transverse granules (similar to those on 

 the last sternite) in segments 1 and 2, coarsely or weakly granular, 

 often scarcely defined, in segments 3 and 4, serrated in segment 5 ; 

 sides of the cauda smooth or nearly so between the keels ; ventral 

 surface of fifth and generally also of fourth segment coarsely granular 

 between the crests ; vesicle distinctly granular at the base below for 

 about !-^ of its length. 



Palps very like those of 0. ijranifrons ; crests of the humerus 

 coarsely granular, the anterior upper crest not well defined, the 

 upper and anterior surfaces granular, the under surface with a few 

 coarse granules near posterior edge ; upper crest of brachium 

 weakly or coarsely granular, posterior surface of brachium 

 coarsely granular on lower half, more weakly granular or nearly 

 smooth on upper half ; hands very broad and robust with short 

 fingers, cordate at base, strongly convex above ; whole upper surface 

 of hands covered with coarse granules, those nearer the inner edge 

 being flatter and broader, those nearer the outer edge more conical ; 

 finger-keel very \veak, composed of a row of larger black granules ; 

 the three secondary keels of the upper surface obsolete or nearly so, 

 generally indicated by rows of blacker, sometimes slightly enlarged, 

 granules ; inner edge of hand sharply granular in the distal part. 



Legs. Anterior surface of posterior femora finely granular ; lower 

 edge of femora coarsely granular ; tarsi of fourth pair of legs with 

 3-5 internal and no external spines below, in addition to the o 

 internal and 3 external spines on the terminal lobes ; tarsi of third 

 pair of legs \vith 3-4 internal and no (very rarely 1) external spines 



