306 M. Ah ton StuxLevg on Myriopoda 



XXX. — On the Myriopoda, fi-om Siberia and Waigatsch 

 Islandj collected during the Expedition of Prof. Norden- 

 skiold, 1875. By Anton Stuxberg. 



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. 7'apax, Mein. ; (3) Scolioplunes sacoUnensis, Mein. ; 

 (4) Geojyhilus longicornis (Leach), Gerstf.; (5) G. i^^losus, 

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

 rensis, Gerstf. ; (8) lulus ar?natus, 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 Myrlo})ods 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, Lithobius 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 : — 



CHiLoroDA. Chilogxatha. 



1. Litliobius ostiacoruui, n. sp. 17. lulus terrestris (Liii.), Gerstf. 



2. sibiricus, Gerstf. 18. profug'us, n. sp. 



3. rapax, Mein. 19. amurensis, Gerstf. 



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



5. scrobiculatus, n. sp. 21. Polydesmus clayatipes, n. sp. 



0. sulcipes, u. sp. 22. tabescens, n. sp. 



7. Nordenskioldii, u. sp. 23. Craspedosoma dahuricum, 



8. formicarum, n. sp. Gerstf. 



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



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



11. vag-abundus, D. sp. 26. Platydesmus amiu'ensis, Cers^/". 



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



13. Scolioplanes sacolinensis, ikfew. Brandt. 



14. Geophilus sibiricus, n. sp. 



15. • longicornis (Leach), 



Gerstf. 



1 6. pilosus, Mein. 



Our present knowledge of the structure of the Siberian 

 Jityriopods scarcely offers any opportunity for comparison 

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

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



