306 M. Anton Stuxberg on Myriopoda 



XXX. — On the Myriopoda, from Siberia and Waigatsch 

 Island, collected during the Expedition of Prof Norden- 

 skioldj 1875. By Anton Stuxbekg. 



As far as I am aware from studying the literature of the 

 subject, only ten species of Myriopods have hitherto been 

 known from the whole of Siberia, including the island of 

 Sakhalin. These are : — (1) Lithohius sibiricus, Gerstf. ; 

 (2) L. rapax, Mein. ; (3) Scolioplanes sacolinensis, Mein. ; 

 (4) Geophilus longicornis (Leach) , Gerstf. ; (5) G. pilosiis, 

 Mein. ; (6) lulus terrestris (Linn.), Gerstf. ; (7) lulus amu- 

 rensisj Gerstf. ; (8) lulus armatus, Gerstf. ; (9) Platydesmus 

 amurensis, Gerstf. ; (10) Craspedosoma dahuricum, Gerstf. 



Beside other Land-Arthropods, during Prof. Nordenskiold's 

 last expedition to Novaja Semlja and Siberia, a considerable 

 number of specimens of Myriopods were collected sufficiently 

 perfect for description. This collection includes eighteen 

 species. One of these, Geophilus pilosus, Mein., was already 

 known from the north of Asia — not from the mainland of 

 Siberia, but from the neighbouring island of Sakhalin. Two 

 others, Lithohius crassipes, L. Koch, and Polyzonium ger- 

 manicum, Brandt, have been long since found in Europe ; the 

 remaining fifteen species are new to science. 



The following is a list, systematically arranged, of all the 

 Myriopods now known to inhabit Siberia : — 



Ohilopoda. Chilognatha. 



1. Lithobius ostiacorum, n. sp. 17. lulus terrestris {Lin.), Gerstf. 



2. sibiricus, Gerstf. 18. profugus, n. sp. 



3. rapax, Mein. 19. amui-ensis, Gerstf. 



4. priuceps, n. sp. 20. armatus, Gerstf. 



5. serobiculatus, n. sp. 21. Polydesmus clavatipes, n. sp. 



fi. sulcipes, n. sp. 22. tabescens, n. sp. 



7. Nordenskioldii, n. sp. 23. Craspedosoma dahuricimi, 



8. formicanim, n. sp. Gerstf. 



9. crassipes, L. Koch. 24. cyliudricum, n. sp. 



10. fugax, n. sp. 25. deplanatum, n. sp. 



11. vagabundus, n. sp. 26. Platydesmus amurensis, Gerstf. 



12. ■ captivus, n. sp. _ 27. Polyzonium germanicum, 



13. Scolioplanes sacolinensis, Mein. Brandt, 



14. Geophilus sibiricus, n. sp. 

 15. longicornis {Leach), 



Gerstf. 

 16. pilosus, Mein. 



Our present knowledge of the structure of the Siberian 

 Myriopods scarcely offers any opportunity for comparison 

 with those of other countries. For, of the twenty-seven species 

 above mentioned, no less than twenty-three consist of forms 



