New South African Scorpions. 



23 



both surfaces are similarly coloured pale ochraceous, becoming 

 reddish yellow in old spirit specimens ; (2) the shape of the spiracles, 

 which are very narrow with parallel edges on capensis, but widened 

 with the posterior edge arched in fuscipcs. The other main dif- 

 ferences are : 



0. capensis (from Cape Peninsula). 



Hands smoother above. 



Length of hand-back in male 

 equal to breadth of hand (some- 

 times less). 



Interocular area weakly granu- 

 lar in front (sometimes coarsely 

 so). 



Pectines in male with pos- 

 terior basal angle less obtuse. 



Operculum cordate, as long as 

 broad (sometimes broader than 

 long). 



Segments 2-4 of cauda with 

 large terminal spine on upper 

 crests. 



Sterna 1 4 more coarsely 

 granular in male. 



Tarsi of fourth leg with 4 

 (sometimes 3) spines on external 

 lobe. 



0. fuscipcs. 



Hands rougher above. 

 Length of hand-back less than 

 the breadth of hand. 



Interocular area coarsely granu- 

 lar in front. 



Basal angle of pectines more 

 obtuse. 



Operculum broader than long. 



Upper crests without enlarged 

 spine (sometimes terminal tooth 

 enlarged and spiniform). 



Sterna 1-4 less coarsely granu- 

 lar. 



Tarsi of fourth leg with 3 spines 

 on external lobe. 



OPISTHOPHTHALMUS PERINGUEYI, n. sp. 



Female (in alcohol). 



Colour dark brownish olivaceous, nearly black, the under side 

 lighter ; legs, vesicle, interocular area of carapace and the hands 

 reddish yellow (probably pale ochraceous in fresh specimens) ; 

 fingers and mandibles greenish black ; maxillary processes not 

 darkened at the apex. 



Carapace longer than wide, as long as the first and second caudal 

 segment and one-third of the third ; the interocular area smooth and 

 polished, finely punctate, not bordered laterally by very coarse 

 granules, but passing gradually over into the rather finely granular 

 sides of the carapace ; anterior edge of the carapace weakly granular, 

 seen from above broadly sinuate, slightly emarginate in the middle ; 

 median eyes two-sevenths of the length of the carapace from the 



