Williams NA, Dixon DR, Southward EC, Holland PWHMay 1993Journal article Journal:Marine Biodiversity RecordsVolume:73Issue:2, Cambridge University Press (CUP), pp.437 - 452No abstract availableKeywords:3107 Microbiology , 31 Biological Sciences , 3104 Evolutionary Biology , 3105 Genetics DOI10.1017/s0025315400032987