30 



DR. H. BLEGVAD OX ANIMAL COMMUNITIES 



to the " Venus "-community, if anything ; so it is possible that 

 the hard sand and gravel liottom here in the strong current ofi* 

 Lowestoft is a transition area between these two communities ; 

 at all events it is certainly a very poor area, exception made of 

 the Epi-fauna (to this also must be reckoned StronglocentroUis 

 drohachiensis, the Hydroids, and Sahellaria alveolata, which last- 

 named species is not found in Danish waters inside the Skaw). 



Stations 3-11 and 16-19 are typical " F(??i?<s "-stations, with 

 the characteristic species Venus gcdlina, TeUina fahula, Ifactra 



Text-figure 1. 



.11 





ll 





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JH 



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T| 



y^^ 



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^^^^^^^■■H 



m >. / dKHmk 



Ih^HHI^RnH 





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0° 1* i' 3* -i" 5° 6 



7° »' 9° 



Cliavt showing Stations worked by the ' George Bligh,' 6th-8th July, 1921. 



Stations 1-2. Vemis (?) Community. 



„ 3-11, 16-19. Venus Communitj'. 



„ 12-15. TSchlnocardium-filiformis Community. 

 Station 20. Ahra Community. 



subtrtincata, Donax vittatus, and Echinocardium cordatum. Among 

 the " attendant species," i. e. species frequently occurring in the 

 community in question, but which may also be found in others, 



