121 



characters. The claws of the tarsi are rather short, clumsy and well curved, 

 generally heyond the arolium; they hear sometimes anterior teeth as in the species 

 of '"Lophochernes" Sim. and "Ectoceras" Steck, (cf. p. 43). The legs bear hairs, 

 which are seldom distinctly clavate, but often provided with teeth or only with a 

 single tooth near to the pointed tip; they are more simple on the ventral than on 

 the dorsal surfaces, and they increase in length and become more simple from the 

 base towards the end of the legs. The tarsus bears almost always in the fourth 

 pair of legs in similarity to most other genera, except Garypus L. K., Pseudochiridimn 

 n. gen.(?) and Chiridium Menge, an exceedinglj' long and slender "tactile" hair; it 

 is f. inst. wanting in Ch. cimicoides F.; while it in all other genera is placed at 

 the base of the tarsus, this hair has in species of Chelifer Geof. a very variable 

 position; it is placed anteriorly near to the base in Ch. Javaniis Thor, and the 

 large group of species, related to this; in Ch. siihriiber Sim., Ch. Morlensenii n. sp. 

 and Ch. lampropsalis L. K., it is placed near to the middle and in Ch. granulahis 

 C. K. near the tip. Ch. nodosus Schranck bears two or even three hairs the one 

 behind the other near to the middle and apparently of this kind. Hairs shorter 

 than these, but like them always simple and distinctly longer than the hairs 

 around, are often found in number on the ventral surface of the trochanter and 

 the trochantin of the fourth pair of legs; a single hair of the same kind is found 

 dorsally near to the tip of the femur as well as of the tibia of the fourth pair of 

 legs; near to the ventral tip of the tibia a pair of similar, but moderately curved 

 hairs are found. On each side near the base of the claws we always find a hair 

 distinctly differing from those around; it is in most forms curved upwards and 

 with the tip directed downwards (f. inst. Ch. Javanus Thor.), but it attains a remar- 

 kable development and is very variable in species of ^'Lophochernes Sim." and will 

 on that account be dealt with separately (cf. pp.125 — 127); a corresponding hair is 

 found in at least most forms of the Obisiidae Hans. (cf. p. 45). 



II. Genital Area of Male. 



The genital area of Chelifer granulatus CK. (C. cancroides L.) and in Ch. cimi- 

 coides F. has been briefly described by Croneberg (1888. 45. p. 448) and later by 

 Stschelkanovtzeff (1903. 67. p. 327); the two authors do not at all agree with each 

 other in their interpretation of the observed details. The preliminary studies 

 published here refer only in a slight degree to the inner structure of the genital 

 apparatus, their only purpose being to point out, that "generic" characters of value 

 are found in the modifications of these organs. In the following the outer appearance 

 of the genital area will be described in a number of forms, which stand more or 

 less apart from each other. 



1. Ch. subruber Sim. (PI. Ill, fig. 7 b). The genital area of this species as well 

 as of Ch. Murrayi Poc. seems to be one of the most simple in this genus. The 

 sexual opening is a split (g), broadest in the middle, which is placed between two 

 plates an anterior (a) and a posterior (jd); the former is distinctly broader than 



O. K I). Viilensk. Sekk, Ski- . 7. lln-kkc. n.^tu^^idensk. og ni.athcm. Alil. Ml 1 10 



