New South African Scorpions. 9 



long bristles and appearing, when viewed from above, twice as thick 

 as either of the claws. 



Operculum cordate, somewhat longer than broad, emarginate 

 behind but not cleft longitudinally. 



Pcctincs with 20-21 teeth ; scape rounded at the base behind and 

 free of teeth for about two-sevenths of its length. 



Measurements in Millimetres. Total length 100 ; greatest length 

 of carapace 16 ; width of carapace 16 ; distance of eyes from 

 anterior median border 10 ; width of hand 10 ; length of hand- 

 back 10, of movable finger 16i, of tail 51 ; width of first caudal 

 segment 5i, of fifth caudal segment 4. 



A single specimen bearing the label " Walfisch Bay," Damaraland 

 ( Car ring ton Wilmer] . 



The affinities of this species are not apparent to me. The 

 structure of the tarsi is very peculiar. 



OPISTHOPHTHALMUS FOSSOR, n. sp. 



Plate III., fig. 4, 4a. 

 Female (recently killed, in alcohol). 



Colour of carapace, abdomen, palps, and legs dark reddish brown ; 

 the interocular area of carapace, the vesicle and the inner basal 

 portion of hand much lighter, ochraceous or reddish yellow ; cara- 

 pace on each side of the interocular area black ; a considerable 

 portion of the humerus and brachiurn, especially on the crests, 

 black ; the fingers, the keels of hands and tail and the mandibles 

 also black. 



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

 segment and one-third to one-fourth of the third ; its interocular 

 area rugose or weakly granular in front, nearly smooth behind, 

 rarely nearly smooth throughout ; sides of the carapace very 

 coarsely granular right up to the edge, the granulation especially 

 coarse along the borders of the interocular area, more finely 

 granular at the posterior angles ; median eyes one-third of the 

 length of carapace from the posterior edge ; anterior fork of median 

 groove usually quite obsolete, occasionally partially developed, never 

 extending, however, as far as the anterior edge of carapace. 



Terga densely granular throughout, the granules coarser in the 

 posterior part of each segmeno ; the last segment coarsely granular 

 at the sides and behind, finely granular but not at all or scarcely 

 elevated mesially in front, with a pair of low elevations behind ; 

 segments 3-6 with traces of the median keel, which often takes the 

 form of a tubercle. 



