228 ME. C. J. WITH ON SOUTH-AMERICAN CHELIFERIN^ 



sino-le one more apart ; posteriorly the three " spots " on the movable finger stand 

 more apart. The fingers do not touch each other in the middle when closed, but leave 

 a narrow space between. 



Coxoe. — The fourth pair are very similar to those of the preceding species, but even 

 shorter {cf. fig. 1 i). 



Legs. — SuMenninal hair of the first pair is rather suddenly broken or curved without 

 any tooth anteriorly, while posteriorly it, as in the fourth pair, is moderately curved. 

 The tarsus I. is much more slender, being 5-7 as long as deep ; the femur of the fourtii 

 pair of legs is 2'5 as long as deep and 1'4 lower than tarsus long. The posterior claw 

 of the first pair of legs is more slender and less curved than the other claws, but in a 

 smaller degree than in the male. 



Measurements. — Cephalothorax 1-08 (1-04); abdomen 2-53 (1'38) mm. 



Palps: trochanter 0-529 (0-322); femur 1-219 (0-253) ; tibia 0-989 (0-299) ; hand 

 0-920 (0-414), depth 0-368; finger 0-898 mm. 



Leg I.: femur 0-631 (0-176), trochantin 0-122 (0-190); tibia 0-410 (0-114); tarsus 

 0-388 (0-067) mm. 



Leg IV.: femur 0-820 (0-330); tibia 0646 (0-167); tarsus 0-471 (0-084) mm. 



Material. — Of this species I have examined five males and one female, as well as an 

 immature specimen fi-om Brazil. 



Bemarks. — That the female and the males belong to the same species I regard as 

 certain. I am not quite convinced that the males are quite full-grown, as the first 

 abdominal tergite is longitudinally divided as in the female, while the male of 

 Lophochernes has generally the first two tergites undivided ; but as well-marked sexual 

 characters are present in the coxae, tarsi, and maxillar chelae, I think they are probably 

 mature. This species, which is most remarkable by the curious structure of the male 

 chela, IS easily distinguished from Ch. iniperator, sp. n., as well as from Ch. cancroides 

 L., by the unarmed claws. 



II. Group of Chbliper subruber Sim. 

 Articular cavity between the two jparts of the femur of the first j)air of legs not very 

 wide and only slightly oblique, with posterior condylus placed more ventrally than 

 anterior. Fingers of the palps without accessory teeth. Real eyes or ocular spots. 

 " Tactile " hair of tarsus IV. never basal. Male with genital plates of simple 

 structure and its median sternites with differently developed spinous areas. 

 [Cla^vs simple and subterminal hair never voith teeth. Two distinct transverse grooves. 

 Hairs slightly or strongly clavate. Flagellum consists of four hairs.) 

 The characteristics of this group are in the main as set forth in my earlier 

 publication on this theme {cf. 20. p. 133). The eyes are real or represented by ocular 

 spots ; sometimes we find eyes in the females, but ocular spots in the male — for instance, 

 in Ch. longichelifer Balz. The cephalothorax is more or less granular, with two 



