Hydrozoa source details
Eno, N. C.; Clark, R. A.; Sanderson, W. G. (1997). Non-native marine species in British waters: a review and directory. Joint Nature Conservation Committee, Peterborough. pp. 136.
192095
Eno, N. C.; Clark, R. A.; Sanderson, W. G.
1997
Non-native marine species in British waters: a review and directory
Joint Nature Conservation Committee, Peterborough
pp. 136
Publication
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Clavopsella navis (Millard, 1959) accepted as Pachycordyle michaeli (Berrill, 1948) (additional source)
Gonionemus vertens A. Agassiz, 1862 (additional source)
Gonionemus vertens A. Agassiz, 1862 (additional source)
Azores Exclusive Economic Zone for Clavopsella navis (Millard, 1959) (origin: alien)
England for Gonionemus vertens A. Agassiz, 1862 (origin: alien)
Germany for Clavopsella navis (Millard, 1959) (origin: alien)
South Coast of England for Clavopsella navis (Millard, 1959) (origin: alien)
England for Gonionemus vertens A. Agassiz, 1862 (origin: alien)
Germany for Clavopsella navis (Millard, 1959) (origin: alien)
South Coast of England for Clavopsella navis (Millard, 1959) (origin: alien)
English common cord-grass [from synonym] for Spartina townsendii var. anglica (C.E. Hubbard)