44 



developed in Ch. bißssus Sim., Ch. Socot rensis With, Ch. Mortensenii n. sp. (PI. Ill, 

 fig. 1 i) and especially in Ch. siiperbus n. sp., in which it is almost as long as the 

 point of the claw. The claws on the first pair of legs in the I'emale have generally 

 the teeth better developed than in the fourth pair; these teeth are big in Ch. gra- 

 nulatus C. K., so long as the point of the claws in Ch. Mortensenii n. sp., consistently 

 giving these the appearance of being bifurcate, while that of the anterior claw of 

 Ch. Socotrensis With is of usual shape in contrast to that of the posterior claw, 

 which has the tooth placed ventrally behind the summit not anteriorly as usual. 

 The claws of the first pair of legs of the male are often remarkably developed; 

 the anterior claw of Ch. lampropsalis L. K. has a very indistinct almost obsolete 

 ventral tooth and is rather clumsy, while the posterior, well curved, strongly pointed 

 claw bears a long anterior tooth near the middle (PI. II, fig. 5 a). The anterior 

 claw of the first pair of legs in Ch. granukitus C. K. is moderately curved and 

 pointed without any tooth, while the posterior attains a remarkable development, 

 is dangerously pointed and provided with a fairly long anterior tooth (PI. Ill, 

 fig. 4 a, cex); in Ch. Socotrensis With we have these claws developed in a similar 

 manner, but the anterior toothless claw is more slender, and the posterior bears 

 only an insignificant tooth. The corresponding claws of Ch. Mortensenii n. sp. and 

 Ch. superbus n. sp. are similar to those of Ch. lampropsalis L. K., the ventral tooth 

 of the anterior claw is only much more prominent and the anterior tooth of the 

 posterior claw is almost obsolete (PI. II, fig. 1 h). 



Vm. Hairs. 



Usual hairs. The hairs of the legs are pointed and simple in all the Che- 

 lonethi with the exception of the Cheliferidae Hans, and Garypus L. K., in which at 

 least a number of them is clavate or provided with teeth or a single tooth; the 

 hairs of almost all forms increase in length towards the tip, and those of the 

 dorsal surface are as a rule longer than those of the ventral surface with the 

 exception of some of the Pseudobisiinae Hans. The ventral surface of the trochanter 

 and trochantin of the fourth pair of legs bear in many species of Garypus L. K. 

 and Chelifer Geof. a number of very long, slender and pointed hairs (cf. below). 

 The tibia of the fourth pair of legs bears in some of the Obisiinae Dad. a dorsal 

 very long and slender hair near the middle, and the second tarsal Joint bears a 

 similar one in the middle and a shorter one near the tip, all shorter than the 

 tarsal "tactile" hair; the femur as well as the tibia of many species of Chelifer 

 Geof. (cf. below) in the fourth pair of legs bear dorsally a single long and slender 

 hair each. 



Tarsal "tactile" hair. Dorsally — as a rule near to the base of the tarsus 

 of the fourth pair of legs — we find in all genera except Garypus L. K., Pseudochi- 

 ridium n. gen.(?) and Chiridium Menge ('?), a long and slender, distinctly ])ointed 

 hair, which is articulated in a cavity a little wider than those of the other hairs, 

 but not very thin at the base like the tactile hair on the fingers of the palps; 



