Mr. E. 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. The 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 ; the 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. honariensis^ 

 the middle of this area tubercular. Vesicle flat above, scarcely 

 granular, subserially granular below. 



Palpi: humerus coarsely granular above and in front; 

 hrachium Aveakly 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. 

 Kamage. 



hjomewhat resembling B. coriaceus 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 graimlar, and the hairs upon the 

 bottom of the feet are much longer. 



Bothriurus signatus, sp. n. (PI. V. fig. 11.) 



? . Colour brunnco-fuscous, with a ])ale median dorsal 

 band ; variegated with black ])atches, the lower surface of the 

 trunk pale-culuured, 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. 



