Mr. H. I. Pocock on South- African Scorpions. 389 



smooth, and without crests, the superior keels 

 represented by a terminal granule, and some- 

 times on the first and second segments by a 

 few smaller granules ; inner set of teeth on 

 digits isolated and, except at the distal end, 

 lying far from the apices of the adjacent median 

 rows ; hand of male not internally spined ; 

 basal pectinal tooth in female expanded but not 

 elongate ; (prevailing colour mostly yellow, 

 with a black patch on each side of the terga 1 

 to 6 ; tail posteriorly inf uscate and basal half of 

 digits also darker). 

 a 2 . Apical teeth of the median rows at the distal 

 end of the digits enlarged and slightly sepa- 

 rated from the rest, and pairing with the ad- 

 jacent teeth of the inner set ; (hand internally 

 granular; vesicle smooth below ; a small tooth 

 beneath the aculeus ; fifth caudal segment 



almost as in Fischeri) occidentalis (Sim.). 



b 2 . Apical teeth of the median rows scarcely en- 

 larged and hardly separated from the rest, so 

 as to pair with' the adjacent teeth of the 

 inner set. 

 uK Vesicle rugose below, with only a small 

 tuberculiform tooth beneath the aculeus; 

 upper edges of the fifth caudal segment 

 evenly convex from end to end ; hand in- 

 ternally granular ; internal teeth of digits 

 further back, the ninth from the base on a 

 level with the apex of the adjacent median 



row vittatus (Thor.). 



b\ Vesicle smooth, coarsely punctured below, 

 with a distinct triangular tooth ; superior 

 edges of the fifth caudal segment elevated 

 behind and terminating in a nearly vertical 

 margin ; internal teeth of the digits further 

 forward, the sixth or seventh from the base 

 on a level with the apex of the adjacent 



median row Fischeri (Karsch). 



i. Terga with a single crest as in section 2, the supe- 

 rior and superior lateral crests of the tail well 

 developed and granular ; at least the lower sur- 

 face of the vesicle and of the fifth segment 

 granular below ; hand in the J slender and 

 armed internally with a denticle, which is 

 visible as a tubercle in the $ ; more of the basal 

 teeth of the internal series isolated, but, at least 

 in the distal two thirds of the digit, they are 

 paired with the enlarged and separated apical 

 tooth of the adjacent median rows. 

 a i . Anterior four caudal segments smooth below, 

 not carinate, but punctured as in section 2 ; 

 sides of the fifth segment of the tail as 

 described under b 3 ; a distinct tooth beneath 

 the aculeus of the tail ; basal pectinal tooth 

 enlarged as in section 2 ; colour uniform deep 

 green, with paler flavous markings chlorodermus, sp. n. 



