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SourceID9261
NameSchuchert, P. 2005a. Taxonomic revision and systematic notes on some Halecium species (Cnidaria, Hydrozoa). Journal of Natural History, 2005; 39 (8): 607-639
Type Publication
AbstractAlthough the genus Halecium 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-eastern Atlantic. This paper revises and redescribes 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.
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
(38)
Arctic Ocean for Halecium halecinum (Linnaeus, 1758)
Arctic Ocean for Halecium labrosum Alder, 1859
Arctic Ocean for Halecium scutum Clark, 1976
Arctic Ocean for Halecium textum Kramp, 1911
Atlantic Europe for Halecium mediterraneum Weismann, 1883  (doubtful)
Azores for Halecium labrosum Alder, 1859  (doubtful)
Brittany for Halecium labrosum Alder, 1859
Canada for Halecium textum Kramp, 1911
Cape Farewell for Halecium scutum Clark, 1976
East Atlantic for Halecium halecinum (Linnaeus, 1758)
English Channel for Halecium lankesterii (Bourne, 1890)
Faroe Islands for Halecium scutum Clark, 1976
Faroe Islands for Halecium textum Kramp, 1911
Galicia for Halecium mediterraneum Weismann, 1883  (doubtful)
Greenland for Halecium textum Kramp, 1911
Iceland for Halecium scutum Clark, 1976
Iceland for Halecium textum Kramp, 1911
Mediterranean Sea for Halecium banyulense Motz-Kossowska, 1912
Mediterranean Sea for Halecium halecinum (Linnaeus, 1758)
Mediterranean Sea for Halecium lankesterii (Bourne, 1890)
Mediterranean Sea for Halecium mediterraneum Weismann, 1883
Mediterranean Sea for Halecium petrosum Stechow, 1919
Morocco for Halecium mediterraneum Weismann, 1883  (doubtful)
Mozambique for Halecium lankesterii (Bourne, 1890)
New Zealand for Halecium corrugatissimum Trebilcock, 1928
North Atlantic for Halecium labrosum Alder, 1859
North Atlantic for Halecium scutum Clark, 1976
North Island for Halecium corrugatissimum Trebilcock, 1928
North Sea for Halecium labrosum Alder, 1859
North Sea for Halecium lankesterii (Bourne, 1890)
Pacific Ocean for Halecium halecinum (Linnaeus, 1758)
South Africa (country) for Halecium halecinum (Linnaeus, 1758)
South Africa (country) for Halecium lankesterii (Bourne, 1890)
South Island for Halecium corrugatissimum Trebilcock, 1928
Spain for Halecium labrosum Alder, 1859  (doubtful)
Subtropical Atlantic for Halecium lankesterii (Bourne, 1890)
Tropical Atlantic for Halecium lankesterii (Bourne, 1890)
West Atlantic for Halecium halecinum (Linnaeus, 1758)
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2013-01-12 18:30:12Z  created  db_admin
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