IN THE BEITISH AND COPENHAGEN MUSEUMS. 313 



•Legs. — The tarsus of the first pair is 4-8 as long as deep, and the femur of the 

 fourth pair of legs is 2*9 as long as deep, but scarcely longer than the tibia. 



Measurements. — Cephalothorax 1-380 (1-265); abdomen 2-75 (TTo) mm. 



Palps: trochanter 0-736 (0 483); femur 1-311 (0-590); tibia 1-334 (0-635); hand 

 1-495 (0-874), depth 0-874 ; finger 1-012 mm. 



Leg I.: femur 0-943 (0-276), trochantin 0-161 (0-299); tibia 0-782 (0-184); tarsus 

 0-598 (0-126) mm. 



Leg IV. : femur 1-173 (0-405); tibia 1-150 (0-220) ; tarsus 0-713 (0-150) mm. 



Variation. — The specimens examined varied rather considerably in size, those of 

 which the measurements are given being the largest at my disposal ; the smallest male 

 examined, which was referred to this species (from La Moka), had the tibia ,of the 

 palps 1-104 mm. long. A single female from Rio Janeiro, with the tibia 1-15 mm. long, 

 was only with hesitation referred to this species, as the outlines of the tibia were more 

 strongly convex. The characteristic shape of the trochanteral tubercle dorsally, as 

 well as that of the protuberance of the tibia in the male, is in many specimens only 

 slightly pronounced. 



Material. — Of this species I have examined a number of specimens (22 ? and 12 cf ) 

 found beneath the elytra of a specimen of Acrocrinus longimanus from Brazil ; three 

 small, almost dark specimens from Tobasis Kapa (Keyserling Coll.); Dr. Meinert 

 collected in Venezuela a single small male in the month of December at Hacienda 

 Elias, Los Trincheras, as well as two in the month of August at La Moka by sifting ; 

 Eeinhardt collected a single female in Rio Janeiro. This species has previously been 

 recorded from the greater part of the sub-continent, viz. Venezuela, Brazil, Ecuador, 

 Paraguay, and Chile. 



Remarks. — That the species described above is identical with that described by 

 Balzan as well as Ellingsen under this name I regard as certain, in spite of much 

 larger measurements given by Balzan, especially compared to those of a rather small 

 specimen which I had the opportunity of examining by the kindness of Mr. Ellingsen. 

 This species is very nearly related to Ch. argentinus Thor., so nearly that the position 

 of some specimens is not easily ascertained, but I nevertheless regard it as a well-defined 

 species, but one with a very wide range of variation. The female differs generally from 

 that of Ch. argentinus Thor. by its larger size, by the less slender, more depressed 

 abdomen, by the more distinctly granular cephalothorax, by the hand, which is at least 

 not wider than deep, and by the fingers, which are only 1-2 longer than the hand is 

 deep, and by the tarsus of the first pair of legs, which is only 4-8 as long as deep. 

 The male difi'ers besides by the characteristic dorsal tubercle of the trochanter, by the 

 pronounced protuberance of the tibia, by the hand, which is 1-3 as deep as wide, and 

 the fingers, which are only 1-05 longer than hand is deep. According to Ellingsen 

 the main character seems to be the granulation of the head, but this scarcely holds 

 good [cf. above). Concerning the relation of the described species to that which 

 Tomosvary described, I refer to Ellingsen's discussion (15. p. 154), 



VOL. XVIII. — PAET III. No. ]3. — October, 1908. 2 u 



