- 5 - 



long as broad, distinctly shorter than cephalothorax, somewhat convex 

 on the inner side, yet very slightly concave next to the extremity, 

 the outer side strongly convex; laterally viewed the femur is very 

 high, about 1 l j. 2 times as high as broad, from the base rising rather 

 abruptly to the highest point, which is lying about i f i from the base, 

 and then gradually sloping and slightly convex towards the extre- 

 mity. Tibia stalked, a little broader and shorter than femur, a little 

 longer than broad, when the stalk is excepted, the outer side in the 

 proximal part nearly straight, distinctly convex towards the extre- 

 mity, the inner-upper surface somewhat subconically swollen. Hand a 

 little longer and considerably broader than tibia, from somewhat ob- 

 liquely rounded base slightly convex on the outer side, more strongly 

 so on the inner surface. Fingers about 2 / 3 of the length of the hand, 

 distinctly curvate. 



Mandibles : galea moderately strong, differing in form, even in the 

 sanie specimen; in one specimen one galea had the point split, a little 

 farther behind two small, opposite teeth, behind the middle on the 

 under side a strong brandi with two teeth, and behind the branch 

 the trunk had another small tooth ; the other galea had the point split, 

 a curvate tooth a little farther behind, then a couple of opposite teeth, 

 then a very small branch with a little tooth near the base, and be- 

 hind the branch the trunk had two teeth; galea may, however, also 

 be without any branch, only provided with shorter or longer teeth 

 nearly from the base, in both sexes. 



Legs with numerous, fine, partly dentate hairs; the posterior fe- 

 mora moderately broad; the claws simple. 



Length up to 3,5 mm. 



In the 9 the hand is proportionally more slender than in d, and 

 tibia more regular, femur less high. 



Paraguay: Puerto Bertoni 13 specimens, 5 d, 8 9 (A. Bertoni de 

 Winkelried); Brazil: Urucum 10 specimens, 2 d\ 8 9 (Dr. A. Borelli); 



Para 1 specimen d (Prof. Goeldi). 



By the liberality of. Mr. Eug. Simon in Paris I have been able to 

 compare the above specimens with one of the types of Balzan from 

 Venezuela. Having now seen the true Ch. intermedius I am almost 

 quite aure that what I described (loc. cit.) as rotundatus from Ecuador 

 is but a form of intermedius in spite of the little developed trans- 

 verse grooves, which brought me to refer my species to the subgenus 

 Atemnus. Chelifer intermedius is especially distinguished by the femur 

 of the palps, being very high, in this respect unique among the South 

 American Lamprochernes. The only difference of importance between 

 the specimens, examined by me, and the type of Balzan, is, that the 

 lattei', as also indicated in the description of Balzan, has femur gra- 



