92 Mr. R. I. Pocock on Neotropical Scorpions. 



fifth 3 ; width of brachiura 3, of manus 5''6 ; length of hand- 

 back 6, of movable digit 8. 



Two female examples from Milligalli (Ecuador), collected 

 by Mr. Edward Whymper. 



Part II. 



Caeaboctonus, gen. nov. 

 (PI. V. fig. 8.) 



Allied to Hadrurus, and presenting all the characters of this 

 genus, except that the lower surface of each foot is furnished 

 witli a single distally bifurcating series of close-set tufts of 

 fine hair, each like the tip of a camel's hair paint-brush. 

 Moreover the presence of this " scopula " is accompanied by 

 a decrease in the size and sharpness of the inferior claw. In 

 Hadrurus the inferior claw is long and sharp and the lower 

 surface of each foot is furnished with a single series of short 

 close-set spines. 



Type C. Keyserlingii. 



I also refer to this genus II. charcasus of Karsch, of which 

 the Museum has an example from Bolivia, and a second species 

 from Callao, which is probably synonymous with either 

 H. maculatus of Thorell or H. robiistus of Boeris. Whether 

 or not N. Paaschi and parvulus of Kai'sch belong to this 

 genus I am unable to say. 



Carahoctonus Keyserlingii^ sp. n. 



Colour a uniform piceous, olivaceo- or brunneo-piceous tint, 

 the legs, palpi, and caudal vesicle redder. 



The carapace with its interocular region smooth, polished, 

 and sparsely punctured, the rest of it thickly granular, the 

 anteocular portion not mesially sulcate, the margin lightly 

 convex, the posterior region deeply sulcate mesially and at 

 the sides. The tubercle undivided, a little in advance of the 

 middle, the distance between the eyes greater than a diameter. 

 The three lateral eyes about equidistant from each other, the 

 posterior much smaller than tlie other two, the distances 

 between the eyes about equal to the diameter of the little one. 



Tergites without keels, finely granular, the granules coarser 

 posteriorly and along the hind margin, the last coarsely 

 granular and indistinctly quadricostate. 



The anterior sterna smooth and highly polished j the last 

 granular, with four granular keels. 



Tail robust and moderately long, a little more than four 

 and a half times the length of the carapace, the segments 



