Mr. R. I. Pocock on Neotropical Scorpions. 97 
The whole of the exposed portion of the tergites thickly 
granular like the carapace, the last with two sets of larger 
granules on each side. he sterna finely and closely granu- 
lar, the last without trace of keels, 
Tail moderately robust, rather more than four times the 
length of the carapace, parallel-sided, the third segment about 
as long as wide ; minutely and closely granular throughout ; a 
few larger granules in the region of the superior and supero- 
lateral keels on the anterior three segments, these keels being 
marked posteriorly by small tubercles ; tie supero-lateral keel 
absent on the fourth segment; the sides and lower surface of 
the segments without keels; the fifth segment mesially sul- 
cate, widely excavated behind; the lower surface with an 
obsolete median keel, the posterior semiovate area not very 
clearly defined, the two inwardly curved oblique series of 
granules not coalescing in the middle line as in B. bonariensis, 
the middle of this area tubercular. Vesicle flat above, scarcely 
granular, subserially granular below. 
Palpi: humerus coarsely granular above and in front; 
brachium weakly granular above, its upper inner edge cari- 
nate; manus longer than wide, very finely and closely 
granular above and below. 
Legs very finely granular externally, the penultimate 
segment armed with acute spines; the foot furnished beneath 
with a single series of long white hairs, the first not spined 
beneath, the rest armed with from two to three pairs of spines. 
Pectines large, furnished with 20 teeth; the genital oper- 
culum acutely produced behind. 
Stigmata small, ovately elongate. 
Measurements in millimetres.—Total length 24, length of 
carapace 3, of tail 14. 
A single example from Iguarassu, collected by G. A. 
Ramage. 
Somewhat resembling B. cortaceus in the development of 
the area on the lower surface of the fifth caudal segment ; 
but the whole animal, and especially the lower surface of the 
tail, is more noticeably granular, and the hairs upon the 
bottom of the feet are much longer. 
Bothriurus signatus, sp.n. (Pl. V. fig. 11.) 
?. Colour brunneo-fuscous, with a pale median dorsal 
band; variegated with black patches, the lower surface of the 
trunk pale-coloured, the lower surface of the tail and of the 
last abdominal segment with an irregular transverse black 
band; the palpi reddish, concolorous or nigro-variegated. 
