The human transport of animals across the Northern Atlantic 



185 



(Photo P. Ardo.) 



FIG. 26. The Dung beetle Aegialia arenaria F. and the Weevil Philopedon {Cneor- 

 rhinus) plagiatiis Schall., both occurring on "The Crow" (fig. 23) and introduced into 

 North America. These sluggish, flightless insects may easily be swept down by 

 heavy wind on to the tidal flat where ballast was taken (fig. 25). Swedish specimens. 



was not noted. Due to the early season the results were poor, for instance no spiders 

 were found. 



Collected animals: 



Coleoptera 



Carabidae 



Ciircidionidae 

 Hem. Heteroptera 



27 (7) species Dermaptera 



12 (3) » Iso-Myriapoda 



1 (i) » Molhisca 



2 (o) » 



I (i) species 



7 (5) » 

 6 (4) .) 



Specially considered groups: 27 species, 14 "emigrants" = 52 per cent. 



linids, &c.). Apparently due to the early time of year, they had not managed to make their 

 definite selection of habitat after hibernation. 



