22 



cuinpiuc it in a (Jlillwnius C. K. ami a (Ihclifer Guol'., is grcalur than that I'unnd 

 in any other of the structures of the antennae, but these extreme forms are never- 

 theless fonnecled by an almost complete number of intermediate steps. For, if 

 comparing the Iwo ah'eady mentioned forms, we will scarcely lind any point of 

 similarity, but a comparison of a (iarypus Floriilensis Bks. and Idcoronciis laiuinalns 

 n. sp. in this respect will show, that the similarily of the one to the other is greater 

 than that of either to a Chelifev Geof. or to a Chthonius C. K. respectively, as far 

 as the structure of the lamina (serrula) interior is concerned. In the structure of 

 the flagellum and serrula exterior the most interesting forms were found in the 

 (iarijpiis irruyatiis Sim. group, while their structure in Chelifer Geof. was only a 

 slight modification of that found in the less specialized forms; but in the lamina 

 interior by far the most interesting and specialized form is observed in Chelifer 

 Geof. The variations seem to be greater within the Pseiidobisiinae Hans, and 

 Garypidue Hans, than in the other Chelonethi in this organ, as it was in the 

 structure of the flagellum and serrula interior, but in a far less marked degree. 

 It is perhaps worth noticing, that the terminal spine is in all Chelonethi with the 

 exception of most Pseudobisiinae Hans, and Garypidae Hans, only a ])ortion of the 

 serrula (lamina) interior, while it in these two groups is independent, being in 

 the former placed on a lower level than the serrula proper and in the latter on 

 a higher. 



Concluding Remarks. It is thus evident that the antennae and especiallj' 

 the organs, with which they are adorned, show remarkable variations in the 

 different forms of the Chelonethi, but also that the differences are the greater (in 

 most cases at least), the more the forms stand apart from each other. It seems 

 to be a rule, at least with regard to most of the organs, but especially flagellum 

 and serrula exterior, that their variations are most marked in the Pseudobisiinae 

 Hans, and the Garypidae Hans., less so in the other groups. 



III. Function of the Antennae. 



Another question of great interest remains, namely: „what difl'erence in function 

 I'orresponds to the structural oneV". In order to answer this question in a satis- 

 factory manner, direct observations are necessary, but of these we have very few. 



That the false-scorpions are able to spin have been known from of old ; Obisium 

 111. constructs a cocoon to contain the female as long as it has eggs or young ones 

 to protect, as already observed by Hermann ('.'), Menge (33. p. 20), and later on by 

 Simon (5. p. 13), but especially recently by Godfrey (.59. pp.215 — 216); Bouvier has 

 in a little valuable treatise described the partly silken nidi of Garypus saxicola 

 Wath., to the walls of which the egg-bundles are fastened and which contain the 

 female as long as it has eggs or young ones to protect. Chelifer cimicoides F. con- 

 structs a cocoon, in which to pass the dangerous course of moulting as well as 

 the cold season, as observed by Menge (33. pp. 20-21) and Simon (5. p. 13), and 



