The human transport of animals across the Northern Atlantic 



177 



Capsella biirsa-pastoris 

 Matricaria matricarioides 

 Plantago major 

 Pea annua 

 Ranunculus repens 



Senecio vulgaris 

 Sisymbrium officinale 

 Stellaria media 

 Trifolium repens 

 &c. 



Collected animal species: 



Coleoptera 



Carabidae^ 



Curculionidae 

 Hem. Heteroptera 



Specially considered groups: 31 species, 18 "emigrants" = 58 per cent. 



III. Dartmouth (S. Devon), 27. V. 54.— Mr. Percy Russel, Hon. Curator of the 

 Dartmouth Borough Museum, called my attention to the place still marked 

 "Ballast Cove" on the new Ordnance Survey map (sheet 20/85). It is situated on 

 the eastern (Kingswear) side of the harbour, opposite the Royal Naval College, 

 and consists of a small, shallow salt-water bay, now separated from the shore by 

 the railway. By this means the shape of the cove has certainly been changed con- 

 siderably and so have the original flora and fauna of its shore, now stony and barren. 

 The latter consisted only of the Ground-beetle Agonum ruficorne Gze. and a 

 Bristle-tail, Petrobius sp. (immature). The railway embankment, with accompany- 

 ing quays, has a synanthropous vegetation of the usual weed-type, and an utterly 

 scarce fauna: 



Coleoptera 13 (6) species Dermaptera 



Carabidae 4 (2) ■ » Araneae 



Curculionidae o » Iso-Myriapoda 



Hem. Heteroptera 5 (o) » Mollusca 



(i) species 



(o) 



(4) 



(2) 



Specially considered groups: 12 species, 9 

 is unreliable because of the poor material. 



'emigrants" = 75 per cent. The figure 



IV. Plymouth (S. Devon), 26.V. 54.— No records could be obtained of the places 

 where ballast was taken. On the advice of Mr. A. A. Cumming, Curator of the 

 City Museum & Art Gallery, I investigated the eastern side of the older (eastern) 

 of the two harbour basins, especially along the quays at its entrance, which has 

 not yet become fully industrialized but is largely covered with grass and weeds. 

 The soil is hard, dry and stony, mixed in with coke, &c. 

 Vegetation (mostly depressed, but more or less continuous): 



^ In addition, Bembidion concinnum Steph., abundant in the tidal zone. 



12 — 565597 Lindroth 



