180 Mr. R. I. Pocock on 



Family Scorpionidae. 

 Scorpio Colei, sp. n. (PI. XL figs. 2, 2 a,) 



Colour of trunk yellowish green above; tail palish yellow- 

 above, infuscate below, especially on segments 3 to 5, the 

 fifth slightly infuscate above ; vesicle clear yellow ; legs and 

 chelae and coxal areas clear yellow ; hands reddish yellow, with 

 the crest of the hand-back and the teeth on the digits 

 blackish. 



Carapace as long as caudal segments 1 + 2 + 3 of 3, smooth 

 and polished above, granular at the sides, the anterior margin 

 with a deepish median notch and its side-lobes squared as in 

 8c. viatoriSy and weakly granular towards the middle ; 

 median eyes well in front of the middle {cf. measurements). 



Terga smooth and polished, the last granular at the sides 

 and behind, the crests scarcely visible. 



Sterna smooth and polished, the last granular iu its poste- 

 rior half, as in some species of the South- African Opisth- 

 ophthalmus. 



Tail short, weak, about two and a half times the length of 

 the carapace ; the upper surface of the segments 1 to 4 

 slightly excavated and weakly granular, especially poste- 

 riorly, the superior crests veiy weak and weakly granular, 

 absent on the fifth ; sides of the segments nearly smooth ; the 

 lower surface of segments 1 to 4 thickly granular, the median 

 keels obsolete, the lateral distinct, the intercarinal spaces on 

 the lower surface of the fifth also coarsely granular. Vesicle 

 small, narrow, granular below. 



Mandibles as in the East- African species Sc. cavimanus and 

 viatoris, with the penultimate fang much shorter than the 

 last. 



ChelcB moderately robust ; humerus granular above and in 

 front, and weakly so at the base below ; brachium smooth 

 below and punctured behind, as in the other African species, 

 its upper crest granular, its posterior and anterior surface also 

 finely granular; manus entirely covered above with coarse 

 granules, not crested, the crest defining the hand-back very 

 strong but smooth ; inner edge of the hand granular except 

 behind on the lobe, which is smooth ; lower surface granular 

 almost throughout, scarcely crested ; digits normal, the 

 movable considerably shorter than the carapace but equal to 

 the width of the hand. 



Legs smooth, the penultimate and antepenultimate seg- 

 ments, with the exception of the spine at the apex, not 

 spiny externally, but armed with setse as in Opisthophthalmus 



