two new Genera of Scorpions. 45 
Sternites entirely smooth, very finely and closely punc- 
tured, the sulci uniting in front and resembling the imprint 
of a horseshoe; the last rugose, bearing vestiges of four finely 
granular, posteriorly converging keels. 
Tail about three and a quarter times the length of the 
cephalothorax, narrowed posteriorly, the segments longer 
than they are thick, distinctly sulcate above, the sides of the 
upper surface rounded and very finely granular and not 
keeled, the lower surface distinctly carinate, the keels being 
normal in number, finely granular, and marked by setiferous 
pores ; the fifth segment nearly flat above, the posterior third 
of its lower surface without keels; the vesicle large, pyri- 
form, entirely smooth, aculeus short and abruptly curved. 
Palpi robust; humerus coarsely granular above, mostly 
smooth behind and below, strongly granular in front; bra- 
chium rugose and subgranular above and behind, and sub- 
costate behind, smooth in front and below except for the keel 
which separates the anterior and inferior surfaces: manus 
very stout, rugose, and reticulated and convex above, the 
pattern passing into tubercles internally and externally ; the 
superior moiety of the hand-back forming a large obtuse angle 
with the upper surface, beset with small tubercles, defined 
above by a weak keel which anteriorly breaks up into the 
general pattern of the upper surface, the inferior moiety 
entirely smooth and polished, the antero-inferior surface 
granular ; very wide, the length of the back being much less 
than the greatest width and only about equal to the width 
at the base of the dactyli; the height equal to about three 
fourths the length of the hand-back; the movable dactylus 
considerably longer than the hand-back and a little longer 
than the width of the hand, rugose, carinate, with a lobe 
which fits into a shallow excavation on the internal edge of 
the immovable dactylus, the external edge of this dactylus 
very short, about equal to half the length of the movable 
dactylus. 
Legs very finely granular externally, the lower edge of the 
femora of the first three pairs more granular. 
Pectines short, furnished with six to seven teeth; the 
genital operculum cleft, about twice as wide as long. 
Measurements in millimetres—Total length 75; cephalo- 
thorax, length 11, width 11°5; length of tail 35, of first 
segment 4°5, of second 5, of third 5:2, of fourth 6, of fifth 
7°5, of vesicle and aculeus 7°3, of aculeus 2; width of first 4, 
of fifth 2°6 ; humerus, length 7, width 4, height 4; brachium, 
length 8, width 4°5, height 5; manus, length behind 8, 
