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ninxillae, in the Hemiclenoclactijli (hey are with a single exception [hU'oionciis lanii- 

 ndliis n. sp.) placed on a lower level. The variation in shape is not very much 

 marked in Ihe Hemictenodactyli (cf. 21. pi. X, figs. 1 a and 2 c), but very considerable 

 in several forms of the Panctenodactijli: in the Garypidae Hans. f. inst. we have a 

 well marked difference between the length of the fourth pair of the coxae in G. 

 Floridensis Bks. and Olpium cordimanum Balz. ; the greatest and most interesting 

 variations are found in the Cheliferinae Sim., in which we often find a marked 

 sexual character in the shape and structures of the fourth pair of coxae. It is 

 only seldom, that the coxae of the female show marked variations; examples are 

 found in the very broad coxae of the female of Ch. equester With, in the female- 

 coxae of Ch. sculpturatus Lew., which are prolonged backwards with their hind- 

 most margin (21. pi. Mil, fig. 2 f), but especially in Pseudochiridiiim Thorellii n. sp. 

 in which the hindmost prolongation of the fourth pair covers the base of the 

 abdomen and is much broader than the coxa proper (PI. IV, fig. 12 d). The coxa 

 of the fourth pair of legs is in the male often of great systematic interest; the 

 whole „Lophochernes Sim." group of the Cheliferinae Sim. f. inst. has got its chief 

 characteristics from the structure of the male-coxa and the remarkable coxal sac, 

 placed within it, and even its species are to a certain degree characterized by the 

 ditferences found in these organs (PI. Ill, fig. 1 e-f). The majority of the species of 

 the Cheliferinae Sim. have the coxae of the two sexes almost alike; only those 

 species, in which the coxae attain a remarkable development, show sexual differences 

 of interest in this respect f. inst. Ch. equester With. (cf. 21. pi. VIII, figs. 3 d\ Ch. 

 sculphiratns Lew. (cf. 21. pi. VIII, figs. 2 b and 2f), Ch. Mortensenii n. sp. (PI. Ill, 

 lig. 1 e-f) and Pseudochiridiiim clavigenim Thor. (cf. below). 



The coxae are always provided with hairs of the usual shape, but in at least 

 four species of Chthonius C. K. remarkable hairs of peculiar structure are placed 

 near the base of the second and sometimes third coxa (PI. I, fig. 1 h) (cf. below). 



n. Trochanter. 



The trochanter of the fourth pair of legs seems always to be longer and 

 more slender than that of the first pair of legs f. inst. in Chelifer Hawaiiensis Sim. 

 (21. pi. VII, figs. 1 b-c). As this joint differs in length as well as in shape in the 

 various forms in no mean degree, I should think it worth while to pay some 

 attention to it (cf. figs. 12 e-f of Pseudochiridium n. g. pi. IV; figs. 1 c-d of Garypiis 

 L. K. pi. II; figs. 7f-g of Garypiniis nohilis n. sp. pi. IIV 



in. Femur of First Pair of Legs. 



The third joint of the first pair of legs has been designated lemur by all 

 authors in Chiridium Menge and Chelifer Geof., but the third and the fourth joint 

 of Garypiis L. K. and most other genera have been differently interpreted by the 



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