Species of Opistkophthalm'us. 161 



but from the position of the eyes, the reddish coloration, and other 

 characters of his specimens, I am inclined to think they are merely 

 specimens of glabrifrons with the last abdominal sternite smoother 

 than usual. 



OPISTHOPHTHALMUS PUGXAX, Thorell, 



0. pnijnax, Thor., Atti Soc. ital., xix., p. 232, 1S77, 3 ; Kraepelin, 

 Eev. d. Skorp., ii., p. 105, 1894, 3 5 . 



0. curt as, Thor., loc. cit., p. 234, $ . 



Area of Distribution. Transvaal; also, according to Pocock, 

 Natal, Basutoland and the south-eastern part of Cape Colony. 



I have seen 7 ad. males and 2 ad. females of this species (some of 

 them kindly lent by the Pretoria Museum). The granulation on the 

 under surface of the last abdominal and anterior caudal segments 

 appears to be the principal character which distinguishes this species 

 from its allies (see Synoptic Table). The interocular area is rather 

 uneven in both sexes, and in the female finely granular anteriorly or 

 free of granules for the greater part in the male finely granular 

 throughout or smooth on the convexites behind, very much as in 

 latimanas, the granulation being finer than in macer. In the male 

 the inferior median crests of first caudal segment are either separate 

 or the space between them is more or less filled up with coarse 

 granulation. The terminal tarsi of the posterior legs have 2 or 1 

 external spines below. No. of pectinal teeth in $ 10-12, in 3 

 14-15. 



OPISTHOPHTHALMUS GLABRIFKONS, Pet. 



0. glabrifrons, Peters, Monatsber. Berl. Akad., 1861, p. 514 (I have 

 not seen this work); Kraepelin, Eevis. d. Skorp. ii., p. 104, in: 

 Jahrb. Hamb. \viss. Anst., xi., 1, 1894. 



O. Iceviceps, Thorell, Atti. Soc. ital., xix., p. 228, 1877 3 (teste 

 Kraepelin) . 



0. prcedo, Thorell, ibid., p. 230 3 ; Kraepelin, loc. cit., p. 107, 

 1894, 3 



Area of Distribution. Griqualand West (Cape Col.), Bechuanaland, 

 Mashunaland as far north as the Zambezi (Pocock), Transvaal. 



1 have examined the following specimens : 



(a) 2 ad. 3 and 3 2 (2 ad.) from the Transvaal (kindly lent me by 

 the Pretoria Museum) : No. of pect. teeth in 5 13-16, in $ 18-19 ; 

 length of carapace in ad. 5 17^-18^- mm., in ad. $ 16-16^ mm. ; 

 distance of eyes from anterior margin 2-2i times their distance 



