Myriopoda of the ' Challenger '' Expedition. 123 



4. Lithohius lapidicola^ Meinert. 



This species was ideiititi^d with some hesitation by Boll- 

 man, to whom authentic examples of L. lapidicola were 

 unknown. I see no reason, however, for doubting the correct- 

 ness of the determination, seeing that L. lapidicola is a 

 tolerably common European form and occurs also in Madeira. 



5. Scolopendra suhspinipes, Leach. 



A widely distributed tropical species. Occurring commonly 

 in the West Indies, whence it has doubtless made its way to 

 Bermuda. 



6. 3[ecistocephalus Guildingii, Newp. 



Recorded by Bollman. A West-Indian species; occurs 

 also in Demerara. 



7. Strongylosoma coarctatum (Sauss.). 



Like Scolopendra subspinipes, this is a widely distributed 

 tropical species. Abundant in Guyana and the West Indies ; 

 occurs also in Europe, but only in conservatories or places to 

 which tropical plants have been imported. 



8. Strongylosoma Guerinii^ Gervais. 



Common in Teneriffe, Madeira, Algeria, &c., but not 

 known upon the western side of the Atlantic. 



9. lulus Moreleti^ Lucas. 



Common in the Azores and Madeira, and closely allied to 

 several species of the South-European fauna. 



10. Spii'oholus monilicornis, Porath. 



Described from Bermuda under the name Sp. Heilprini by 

 Bollman ; but Bermudan specimens are not specifically distin- 

 guishable from others occurring in many of the West-Indian 

 Islands and in Demerara, which are almost certainly monili- 

 cornis of Porath. 



From the above list it will be seen that out of the ten 

 known species four have been doubtless introduced from the 

 West Indies, three are either of Pala^arctic or Nearctic origin 

 (?'. e. nos. 1, 2, and 3), while the remaining three belong 



9* 



