80 Mr. E. I. Pocock on Neotropical Scorpions. 



Herlstii or ray Gervaisii. But in the present unsatisfactory 

 state of our knowledge of tlie names of the species of the 

 genus I do not care to propose another new name on the 

 chance of this species of Simon's proving distinct. 



As for B. gramdatus of Simon [he. cit. p. 241), a name 

 which, by the way, tliis author alters into granulosus m the 

 Ann. Soc. Ent. Fr. 1880, p. 382. it appears to me to indicate 

 a form which is very doulitfully specifically distinct from my 

 Herhstii, for some of the British Guiana specimens are so 

 densely and closely sculptured with anastomosing punctures, 

 that the whole of the upper surface is rugose. 



The remaining species of the genus, paraensis, is unknown 

 to me. 



Hadeueochactas, gen. nov. 

 (PI. V. figs. 5, 5«.) 



Allied to Broteochactas, Pocock {cf. suprh), but differs 

 principally in that the distal segment of the legs is elongate 

 and thickly clothed beneath with long irregularly arranged 

 hairs. 



As additional characters I may mention that in both the 

 species of Broteochactas known to me the hands are very wide 

 and more or less compressed internally, whereas in Hadruro- 

 chactas they are rounded and not internally compressed. 



Hadrurochactas Sclateri, sp. n. 



Colour piceo-castaneous, with flavous or fusco-flavous 

 legs and a pale line down the middle of the back. 



Carapace smooth, only very minutely granular at the sides, 

 the median sulcus deep behind the ocular tubercle and granu- 

 lar, shallow in front of it and smooth ; the ocular tubercle 

 deeply sulcate behind, the eyes on it separated by a space that 

 about equals a diameter, the lateral eyes separated by a 

 distance less than a diameter. 



Tergites nearly smooth, sparsely granular behind and 

 laterally ; the last more coarsely granular and furnished with 

 two tubercles on each side. 



Sterna entirely smooth and polished. 



Tail about four times the length of the carapace, very 

 robust ; segments 1—3 wider than long, the fourth as long as 

 wide, the fifth about one fourth longer than wide, much 

 narrowed behind ; the segments also high, the height of the 

 third being greater than its length ; the superior and supero- 

 lateral keels developed and denticulate, the former elevated 



