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NameSchuchert, P., 2005. Taxonomic revision and systematic notes on some Halecium species (Cnidaria, Hydrozoa). Journal of Natural History 39 8: 607-639.
SourceID38714
AuthorsSchuchert, P.
Year2005
TitleTaxonomic revision and systematic notes on some Halecium species (Cnidaria, Hydrozoa
JournalJournal of Natural History
Suffix39(8): 607-639
Type Publication
Full textAvailable for editors  PDF available [request]
AbstractAlthough the genus Halechan is easy to recognize, identifications at the species level are often difficult. this even for quite common and supposedly well-known species of the north-eastem Atlantic. This paper revises and re-describes some Halecium species which resemble each other closely and which are not easy to distinguish. Additional information on a few rare species is also provided. The study is based on material collected from the North Atlantic, Mediterranean. South Africa. and New Zealand. Halecium scutum Clark, 1877 is recognized as a valid species and distinct from both H. beanii and H. halecinum; colony form. and microscopic characters allow a distinction. The pinnate colony form of H. halecinum is a characteristic trait, but not all colonies show this growth form. Halecium beanii can occur in monosiphonic and polysiphonic colonies. Monosiphonic colonies of H. beanii have probably been misidentified by some authors as H. lankesterii. The differences of H. lankesteri to H. beanii and H. petrosum are discussed. The South African population of the reportedly cosmopolitan H. beanii has distinct gonothecae and could belong to a separate species. The Mediterranean Halecium mediterraneum is hardly distinguishable from the New Zealandic H. delicatulum. but it is kept separate mainly for biogeographic reasons. The rare Mediterranean Halecium banyulense is redescribed based on a second find from Naples. The mate gonothecae of Halecium corrugatissimum are described for the first time.
Bibliographical
term
Systematics, Taxonomy
Taxonomic
term
Hydrozoa
Taxa
(11)
Checked: verified by a taxonomic editorHalecium banyulense Motz-Kossowska, 1912 (additional source)
Checked: verified by a taxonomic editorHalecium beanii (Johnston, 1838) (additional source)
Checked: verified by a taxonomic editorHalecium corrugatissimum Trebilcock, 1928 (basis of record)
Checked: verified by a taxonomic editorHalecium delicatulum Coughtrey, 1876 (additional source)
Checked: verified by a taxonomic editorHalecium halecinum (Linnaeus, 1758) (redescription)
Checked: verified by a taxonomic editorHalecium labrosum Alder, 1859 (redescription)
Checked: verified by a taxonomic editorHalecium lankesterii (Bourne, 1890) (redescription)
Checked: verified by a taxonomic editorHalecium mediterraneum Weismann, 1883 (additional source)
Checked: verified by a taxonomic editorHalecium petrosum Stechow, 1919 (additional source)
Checked: verified by a taxonomic editorHalecium scutum Clark, 1976 (additional source)
Checked: verified by a taxonomic editorHalecium textum Kramp, 1911 (basis of record)
Distributions
(40)
Alaskan Exclusive Economic Zone for Checked: verified by a taxonomic editorHalecium scutum Clark, 1976
Arctic Ocean for Checked: verified by a taxonomic editorHalecium halecinum (Linnaeus, 1758)
Arctic Ocean for Checked: verified by a taxonomic editorHalecium labrosum Alder, 1859
Arctic Ocean for Checked: verified by a taxonomic editorHalecium scutum Clark, 1976
Arctic Ocean for Checked: verified by a taxonomic editorHalecium textum Kramp, 1911
Atlantic Europe for Checked: verified by a taxonomic editorHalecium mediterraneum Weismann, 1883  (doubtful)
Azores for Checked: verified by a taxonomic editorHalecium labrosum Alder, 1859  (doubtful)
Brittany for Checked: verified by a taxonomic editorHalecium labrosum Alder, 1859
Canada for Checked: verified by a taxonomic editorHalecium textum Kramp, 1911
Cape Farewell for Checked: verified by a taxonomic editorHalecium scutum Clark, 1976
East Atlantic for Checked: verified by a taxonomic editorHalecium halecinum (Linnaeus, 1758)
English Channel for Checked: verified by a taxonomic editorHalecium lankesterii (Bourne, 1890)
Faroe Islands for Checked: verified by a taxonomic editorHalecium scutum Clark, 1976
Faroe Islands for Checked: verified by a taxonomic editorHalecium textum Kramp, 1911
Galicia for Checked: verified by a taxonomic editorHalecium mediterraneum Weismann, 1883  (doubtful)
Greenland for Checked: verified by a taxonomic editorHalecium textum Kramp, 1911
Iceland for Checked: verified by a taxonomic editorHalecium scutum Clark, 1976
Iceland for Checked: verified by a taxonomic editorHalecium textum Kramp, 1911
Maroussia for Checked: verified by a taxonomic editorHalecium textum Kramp, 1911
Mediterranean Sea for Checked: verified by a taxonomic editorHalecium banyulense Motz-Kossowska, 1912
Mediterranean Sea for Checked: verified by a taxonomic editorHalecium halecinum (Linnaeus, 1758)
Mediterranean Sea for Checked: verified by a taxonomic editorHalecium lankesterii (Bourne, 1890)
Mediterranean Sea for Checked: verified by a taxonomic editorHalecium mediterraneum Weismann, 1883
Mediterranean Sea for Checked: verified by a taxonomic editorHalecium petrosum Stechow, 1919
Morocco for Checked: verified by a taxonomic editorHalecium mediterraneum Weismann, 1883  (doubtful)
Mozambique for Checked: verified by a taxonomic editorHalecium lankesterii (Bourne, 1890)
New Zealand for Checked: verified by a taxonomic editorHalecium corrugatissimum Trebilcock, 1928
North Atlantic for Checked: verified by a taxonomic editorHalecium labrosum Alder, 1859
North Atlantic for Checked: verified by a taxonomic editorHalecium scutum Clark, 1976
North Island for Checked: verified by a taxonomic editorHalecium corrugatissimum Trebilcock, 1928
North Sea for Checked: verified by a taxonomic editorHalecium labrosum Alder, 1859
North Sea for Checked: verified by a taxonomic editorHalecium lankesterii (Bourne, 1890)
Pacific Ocean for Checked: verified by a taxonomic editorHalecium halecinum (Linnaeus, 1758)
South Africa (country) for Checked: verified by a taxonomic editorHalecium halecinum (Linnaeus, 1758)
South Africa (country) for Checked: verified by a taxonomic editorHalecium lankesterii (Bourne, 1890)
South Island for Checked: verified by a taxonomic editorHalecium corrugatissimum Trebilcock, 1928
Spain for Checked: verified by a taxonomic editorHalecium labrosum Alder, 1859  (doubtful)
Subtropical Atlantic for Checked: verified by a taxonomic editorHalecium lankesterii (Bourne, 1890)
Tropical Atlantic for Checked: verified by a taxonomic editorHalecium lankesterii (Bourne, 1890)
West Atlantic for Checked: verified by a taxonomic editorHalecium halecinum (Linnaeus, 1758)
Specimens
(5)
Unknown type, locality Banyuls-sur-Mer, identified as Halecium banyulense Motz-Kossowska, 1912
Unknown type, locality Banyuls-sur-Mer, identified as Halecium petrosum Stechow, 1919
Unknown type, locality Naples, identified as Halecium mediterraneum Weismann, 1883
Unknown type, locality Plymouth, identified as Halecium lankesterii (Bourne, 1890)
Unknown type, locality United Kingdom, identified as Halecium labrosum Alder, 1859
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2013-01-12 18:30:12Z  created  db_admin
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