116 Mr. A. G, Butler on the Genus Gonyleptes. 



Length of ceplialothorax 4 lines ; relative length of legs 1, 

 3, 4, 2, the second pair being the longest. 



Female. Differs chiefly in its narrower cephalothorax, which 

 has smaller tubercles and less strongly developed lateral spines ; 

 the legs also are much less spinose. 



Hah. Ecuador {Buckley). ^ ? • B.M. 



Must be placed next to G. curvipes^ but is a very distinct 

 and beautiful form. 



18. Gonyle'ptes ancyrophorus, n. sp. PI. III. figs. 5, 6. 



Colours : cephalothorax above pitchy, becoming testaceous 

 at the margins ; legs black-brown, with coxse ochraceous and 

 base of femora ferruginous ; femora of hind legs entirely fer- 

 ruginous ; palpi blackish olivaceous, terminal claw and points 

 of spines ochraceous ; cheliceres olivaceous, with pincers ochra- 

 ceous ; body below dirty testaceous, clouded with olivaceous, 

 and becoming blackish posteriorly. 



Cephalothorax above with oculiferous tubercle prominent, 

 bearing two well-developed and moderately acute divergent 

 spines ; entire dorsum unusually convex ; posterior area tra- 

 pezoidal, and bearing on its hinder margin two slightly diver- 

 gent and well-developed acute spines ; legs long, smooth ; hind 

 legs irregularly spined along inner margin of femora ; palpi 

 rather longer than cephalothorax, their joints more or less 

 cylindrical, irregular, coarsely spined ; cheliceres with second 

 joint above trispiuose behind ; chelas rather large, fixed finger 

 with two obtuse teeth on its inner margin : inferior surface 

 smooth, the metasternum bearing on either side (about halfway 

 between the third and fourth pair of legs) a strong acute per- 

 pendicular spine, and on its outer margin, below the retracted 

 abdominal segments, a long, thick, incurved, and nearly j)er- 

 pendicular horny process, bifurcate at its tip. 



Length of cephalothorax 4 lines ; relative length of legs, 

 apparently, 1, 3, 2, 4. 



Hal. Q,mio [W.C.Hewitson). B.M. 



Not nearly allied to any described species. 



19. Gonyleptes telifer, n. sp. PI. III. figs. 3, 4. 



Colours almost as in G. armillatus, but (Avith the exception 

 of the cheliceres) rather darker ; under surface of body pitchy. 



Cephalothorax similar in general form to that of G. armil- 

 latus ; irregularly tuberculate, marginal tubercles smaller, some 

 of them obtusely spinose ; oculiferous tubercle very prominent, 

 bispinose ; six central tubercles of cephalothorax elongated into 

 obtuse spines, the hindmost pair being the longest ; margin 



