Scorpions from Ecuador. 421 



Genus Teuthraustes, Sim. 

 Teuthraustes latimanus, sp. n. (Fig. 3.) 



Colour a uniform black above, tarsi ocbraceous, vesicle 

 f errugino-piceo us . 



Carapace, tergites, and tail uniformly and rather coarsely- 

 granular ; tubercle continued in front into a long bifid ridge. 

 Upper surface of tail-segments finely granular raesially, 

 the second and third smooth in the middle ; the median 

 inferior keels weaker than the laterals on segments 1 to 4, 

 scarcely recognizable amongst the granules on the first ; 

 superior, supero-lateral, and infero-lateral crests strong and 

 granular ; first caudal segment nearly twice as wide as long, 

 its width about equal to the length of the fourth. Vesicle 

 broad, furnished laterally and below with seven coarsely 

 granular tracts. Anterior sterna smooth, punctured, posterior 

 rather coarsely granular in the middle and laterally. 



Chelce coarsely granular, the granules on the hand forming 

 a network of fused ridges ; inner surface of the hand coarsely 

 granular ; upper surface externally strongly ribbed ; crest of 

 hand-back posteriorly dentate ; hand very wide and thick, its 

 width almost equal to the length of the fifth caudal segment 

 and excelling the movable digit ; digits short, immovable 

 triangular, only slightly longer than broad, with basal tooth. 



Legs 1 and 2 smooth, 3 with granular femur, 4 with femur 

 and patella granular. 



Pectinal teeth 7. 



Measurements in millimetres. — Total length 48 ; length of 

 carapace 6*5, of tail 26*5 j width of first segment 4, of vesicle 

 3, of hand 6'5 ; length of movable digit 4*8. 



Loc. Corazon, in Ecuador, 12,000 feet {E. Whymper). 



Teuthraustes monticola, sp. n. 



5 . — Colour as in latimanus, from which it diflfers principally 

 in the narrower hand and longer fingers. Hand ornamented 

 above in the middle with low punctured ridges, which towards 

 the inner margin and externally become granular; its width 

 less than length of movable digit ; the immovable about 

 twice as long as broad ; carapace less coarsely granular, the 

 anterior prolongation of the tubercle shorter and less noticeably 

 divided. 



Measurements in millimetres. — Total length 50 j length of 

 carapace 7, of tail 26'5 ; width of first segment 4'2, of vesicle 

 3*3, of hand 6 ; length of movable digit 6-5. 



Loc. Machachi, in Ecuador, 9000-10,000 feet [E. Whym- 

 per). 



