80 Mr. R. I. Pocock on Neotropical Scorpions. 
Herbstit or my Gervaisi?. But in the present unsatisfactory 
state of our knowledge of the 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. granulatus of Simon (loc. cit. p. 241), a name 
which, by the way, this author alters into granulosus in the 
Ann. Soe. Ent. Fr. 1880, p. 382, it appears to me to indicate 
a form which is very doubtfully specitically distinct from my 
Herbstii, 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. 
HADRUROCHACTAS, gen. nov. 
(Pl. V. figs. 5, 5a.) 
Allied to Broteochactas, Pocock (cf. supra), 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. 
fladrurochactas Sclater?, sp. n. 
Colour ypiceo-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- 
Jar, 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 
