WoRMS source details
| SourceID | 9261 | ||||||
| Name | Schuchert, P. 2005a. Taxonomic revision and systematic notes on some Halecium species (Cnidaria, Hydrozoa). Journal of Natural History, 2005; 39 (8): 607-639 | ||||||
| Type | Publication | ||||||
| Abstract | Although 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) | Halecium banyulense Motz-Kossowska, 1912 (additional source) Halecium beanii (Johnston, 1838) (additional source) Halecium corrugatissimum Trebilcock, 1928 (basis of record) Halecium delicatulum Coughtrey, 1876 (additional source) Halecium halecinum (Linnaeus, 1758) (basis of record) Halecium labrosum Alder, 1859 (redescription) Halecium lankesterii (Bourne, 1890) (redescription) Halecium mediterraneum Weismann, 1883 (additional source) Halecium petrosum Stechow, 1919 (additional source) Halecium scutum Clark, 1976 (additional source) Halecium 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 (not certain) Azores for Halecium labrosum Alder, 1859 (not certain) 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 (not certain) 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 (not certain) 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 (not certain) 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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