246 Mr. R. I. Pocock on Scorpions. 



than its length, depressed laterally, the frontal lobes rounded, 

 divided throughout by a longitudinal sulcus, which immedi- 

 ately behind the eye expands into a shallow triangular depres- 

 sion ; median eyes small, separated by a distance greater than a 

 diameter ; anterior eye of the lateral pair longer than the 

 posterior and separated from it by a space about equal to the 

 diameter of the posterior eye. 



Tergites perfectly smooth throughout and shining, sparsely 

 and subsymmetrically punctured and hairy in front, depressed 

 on each side of the middle line ; the posterior tergite very 

 weakly granular laterally and posteriorly. Sternites smooth 

 and shining, sparsely punctured and hairy, on each side of 

 the middle bearing two posteriorly abbreviated impressions ; 

 posterior sternite furnished with two smooth anteriorly abbre- 

 viated keels, and between them with two fine juxtaposed 

 impressions. Stigmata narrow and slit-like. 



Tail about three and a half times the length of the cepha- 

 lothorax, slender, narrowed posteriorly, the first segment 

 furnished with nine keels, the second, third, and fourth with 

 seven keels, the median lateral keel on the second being 

 represented by merely a short, anteriorly abbreviated crest in 

 the posterior fourth of the segment, and being entirely absent 

 on the succeeding segments ; the superior keels of these four 

 segments only very finely granular, the inferior keels smooth, 

 intercarinal spaces smooth ; fifth segment with its upper sur- 

 face smooth and nearly fiat, sulcate anteriorly, the superior 

 keels very finely granular, the lateral keel also finely granular 

 and posteriorly abbreviated, the inferior surface granular, the 

 lateral and median keels coarsely granular, the median keel 

 double nearly throughout its length, the space between the 

 two halves gradually widening posteriorly. Vesicle narrow, 

 pyriform, punctured and hairy, and exceedingly finely 

 granular beneath, the aculeus short and but little curved. 



Palpi powerful ; humerus smooth above, below, and behind, 

 the anterior surface coarsely but irregularly granular, the 

 supero-posterior keel evenly granular throughout ; brachium 

 smooth and not costate supero-posteriorly, its posterior surface 

 deeply marked with pores and very hairy, its inferior surface 

 smooth below, bounded behind by a smooth ridge, in front of 

 which is a distinct series of punctures ; the anterior surface 

 nearly flat, bounded above and below by a ridge which is 

 exceedingly finely granular ; mamis smooth, nearly flat above, 

 its upper surface marked raesially by an almost obsolete, 

 posteriorly abbreviated ridge, which starts from the immovable 

 dactylus, the posterior or external surface meeting tlie upper 

 surface at an obtuse angle, strongly convex from above down- 



