little-known Neotropical Scorpions. 473 



Measurements in millimetres. — 



Total Movable Width of 



leno-tli. Carapace. Tail. Underhand. finger. hand. 



$ .. 66 9-5 34 7-3 9 6-3 



(^ .. 66 9 36 7-2 8-4 7-3 



Loc. Loja, 2000 in., in Ecuador (P. O. Simons). 



Genus Teuthraustes, Simon. 

 Te.uthraustes oculatus, sp. n. 



? . — Colour black, vesicle and tarsi ferruginous. 



Carapace with anterior border transverse, but distinctly 

 notched in the middle line ; frontal area very sparsely 

 granular, niesially grooved, ocular tubercle high ; three 

 distinct lateral eyes ; ocular tubercle, posterior portion of 

 carapace on each side of the median groove, and area round 

 tubercle smooth. 



Anterior five te?'ga quite smooth in the middle, sparsely 

 granular laterally, without trace of enlarged tubercle on each 

 side on the posterior margin. 



Sterna and tail as in T. nitescens, but the superior caudal 

 keels a little more coarsely granular. 



Chelce as in T. nitescens, but the brachium and hand not 

 visibly crested, the latter almost entirely smooth and very 

 obsoletely sculptured. 



^ . — Differs from the male of T. latimanus in being much 

 more finely granular tiiroughout, with larger ocular tubercle ; 

 hand much narrower, its width much less than length of 

 fifth caudal segment; fingers longer, immovable considerably 

 longer than its basal width. 



Measurements in millimetres. — 



Loc. Sinche and Riobamba, 3000-4000 m. (P. 0. Simons). 



Since describing the species known as T. latimanus and 

 T. monticola, the former from Corazon, 12,000 feet, the latter 

 from RJachachi, 9000-10,000 feet, I have seen several repre- 

 sentatives of both forms from Machachi {E. Whymper)^ 

 which convinces me that the diff"erences are merely sexual. 

 T. nitescens is probably only a subspecific form. 



