46 SUMMARY OF CURRENT RESEARCHES RELATING TO 



Switzerland, though the latter species is not known from intermediate 

 regions. 



Arctic Polar Collembola.* — Herr E. Wahlgren reports on the Col- 

 lembola brought home by Prof. Nathorst's polar expedition, including 

 Achorutes viaticus Tullb., abundant about the nest of a glaucous gull, 

 Tetracanthella pilosa Schott, Aphorura neglect a Schaff., Aph. aretica 

 Tullb., Isotoma binoculata n. sp., and other forms. 



Some Australasian Collembola.f — Sir John Lubbock describes three 

 new species of Anoura from New Zealand and Tasmania, partly in the 

 hope that his contribution may induce colonial entomologists to devote 

 some attention to this interesting though inconspicuous group. 



Fauna of Caves.J — Herr C. Absolon describes Dicyrtoma pygmsea 

 Wankel, and a new species of Heteromurus (H. hirsutus), from Moravian 

 caves. His paper should be read in conjunction with Verhoeff's criti- 

 cisms on the value of subterranean "species." 



P. Myriopoda. 



Fauna of European Caves.§ — Dr. Carl Verhoeff discusses the distri- 

 bution of the Myriopod described by Heller as Brachydesmus subterraneus. 

 This form was found by that author in the caves both of Caruiola and of 

 Moravia, and subsequent observations have only accentuated the apparent 

 anomalies of distribution. Verhoeff finds the only explanation of these 

 in the conclusion that the species does not exist, the specimens being 

 pale-coloured forms of the widely distributed B. superm Latzel, which is 

 a surface-form abundant in Central Europe. It frequently finds its way 

 into caves in districts where these occur, but there is no evidence that 

 the cave specimens constitute even a definite variety. 



Swiss Myriopods-H — Herr H. Kothenbuhler gives a systematic 

 account of these, discussing 69 species, sub-species, and varieties. He 

 describes as new 7 species, 2 sub-species, and 3 varieties. The con- 

 tingent from Germany (about 20 species) seems much greater than that 

 from France (about 6 species), and there are about 15 shared with 

 Austria. Some species which range into North Germany seem to be 

 restricted in Switzerland to the Alps and Jura. Complete comparisons 

 require, however, a survey of the eastern and southern parts of Switzer- 

 land. 



Palaearctic Myriopoda.H — Dr. Carl Verhoeff continues his series of 

 memoirs on this subject in a paper on the Julidae and some other Diplo- 

 poda. He breaks up the genus Julus into two genera, Julus s. s. and 

 Cylindroiulus, each of which contains several sub-genera. The phylo- 

 geny of the genera of the Julidae is discussed in some detail. 



* Ofersigt. K. Vetensk. Akad. Forhandl., lvi. (1899) pp. 335-40 (8 figs.). 



t Journ. Linn. Soc. (Zool.), xxvii. (1899) pp. 334-8 (7 figs.). 



X Zool. Anzeig., xxii. (1899) pp. 493-6. § Tom. cit., pp. 477-9. 



|| Kev. Suisse Zool., vi. (1899) pp. 199-271 (3 pis.). 



i Arch. Naturgesch., lxv. (1899) pp. 183-230 (5 pis.). 



