Hydrozoa source details

Zibrowius, H. & S.D. Cairns. (1992). Revision of the northeast Atlantic and Mediterranean Stylasteridae (Cnidaria: Hydrozoa). Mémoires du Museum national d'Histoire naturelle, Paris, série A, Zoolologie. 153: 1-136.
Zibrowius, H. & S.D. Cairns
Revision of the northeast Atlantic and Mediterranean Stylasteridae (Cnidaria: Hydrozoa).
Mémoires du Museum national d'Histoire naturelle, Paris, série A, Zoolologie
153: 1-136.
In the northeastern Atlantic, from the Cap Verde Islands to the Mid-Atlantic Ridge at 23 degree 31'N, the Azores, Iceland and northern Scandinavia, 19 species of stylasterids have been recognized, one of which is represented by 3 subspecies. Complementary records extend the study area to Greenland. In addition, 2 species are included from the islands of the Gulf of Guinea, equatorial eastern Atlantic. Of all these species and subspecies, 20 are fully described whereas 3 that are incompletely known, are not yet named. The new taxa are: Pliobothrus gracilis n. sp., Stylaster maroccanus n. sp., S. ibericus n. sp., S. erubescens groenlandicus n. ssp., S. erubescens britannicus n. spp., S. erubescens meteorensis n. ssp., Crypthelia medioatlantica n. sp., and C. vascomarquesi n. sp. Compared with the scleractinian corals present in the same areas, most of the studied stylasterid species appear to have a rather narrow geographical range. Only 3 of the 21 species (15%) recorded from the northeastern and equatorial eastern Atlantic are known in the western Atlantic. Although covering a much wider area, the northeastern Atlantic stylasterid fauna is considerably less diversified than its West Indian counterpart, which comprises about twice as many species in 8 genera. Among the northeastern Atlantic regional faunas, that of the Azores is the richest, with 9 deep-water species. Only one species (Errina aspera) occurs in the southwestern Mediterranean. Although present in the islands of the Gulf of Guinea, shallow-water stylasterids are missing in the northeastern Atlantic and Mediterranean where the shallowest records are from about 100 m. A few records exceed depths of 2000 m. In the study area various symbionts leave characteristic traces on the stylasterid skeleton or cause modifications: the gastropod genus Pedicularia (on 8 species) and polynoid and eunicid polychaetes (each on one species). The reliable record of fossil stylasterids is scarce in Europe and the Mediterranean basin (as it is elsewhere). It ranges from the Lower Paleocene to the Plio-Pleistocene whereas Pedicularia, an obligate symbiont of stylasterids, is known from the Messinian (Upper Miocene) and from the Lower Pleistocene.Descriptors: PLIOBOTHRUS GRACILIS new species; STYLASTER MAROCCANUS new species; STYLASTER IBERICUS new species; STYLASTER ERUBESCENS GROENLANDICUS new subspecies; STYLASTER ERUBESCENS BRITANNICUS new subspecies; STYLASTER ERUBESCENS METEORENSIS new subspecies; CRYPTHELIA MEDIOATLANTICA new species; CRYPTHELIA VASCOMARQUESI new species; ERRINA ASPERA; PEDICULARIAfigs 1-42. (French summary). (20.iii.1992).mediterraneo
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Boreal east Atlantic
Mediterranean Sea in general
Systematics, Taxonomy
Zoogeography, Biogeography (generalities), Geographic distribution
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Crypthelia Milne Edwards & Haime, 1849 (redescription)
Crypthelia affinis Moseley, 1879 (redescription)
Crypthelia medioatlantica Zibrowius & Cairns, 1992 (original description)
Crypthelia tenuiseptata Cairns, 1986 (redescription)
Crypthelia vascomarquesi Zibrowius & Cairns, 1992 (original description)
Errina Gray, 1835 (redescription)
Errina aspera (Linnaeus, 1767) (redescription)
Errina aspera (Linnaeus, 1767) (source of synonymy)
Errina atlantica Hickson, 1912 (redescription)
Errina dabneyi (Pourtalès, 1871) (redescription)
Errina dabneyi (Pourtalès, 1871) (source of synonymy)
Lepidopora Pourtalès, 1871 (redescription)
Lepidopora eburnea (Calvet, 1903) (redescription)
Pliobothrus Pourtalès, 1868 (redescription)
Pliobothrus gracilis Zibrowius & Cairns, 1992 (original description)
Pliobothrus symmetricus Pourtalès, 1868 (redescription)
Stenohelia Kent, 1870 (redescription)
Stenohelia maderensis (Johnson, 1862) (redescription)
Stylaster Gray, 1831 (redescription)
Stylaster blatteus (Boschma, 1961) (redescription)
Stylaster erubescens britannicus Zibrowius & Cairns, 1992 (original description)
Stylaster erubescens erubescens Pourtalès, 1868 (redescription)
Stylaster erubescens groenlandicus Zibrowius & Cairns, 1992 (original description)
Stylaster erubescens meteorensis Zibrowius & Cairns, 1992 (original description)
Stylaster gemmascens (Esper, 1790) (additional source)
Stylaster gemmascens (Esper, 1790) (redescription)
Stylaster ibericus Zibrowius & Cairns, 1992 (original description)
Stylaster maroccanus Zibrowius & Cairns, 1992 (original description)
Stylaster norvegicus (Gunnerus, 1768) (redescription)
Stylaster norvegicus (Gunnerus, 1768) (source of synonymy)
Stylaster norvegicus f. pacificus Broch, 1936 accepted as Stylaster verrillii (Dall, 1884) (additional source)
Stylaster rosaceus (Greeff, 1886) (redescription)
East Greenland Shelf for Stylaster norvegicus (Gunnerus, 1768) 
Faroe Plateau for Stylaster norvegicus (Gunnerus, 1768) 
Great Meteor Bank for Stylaster erubescens meteorensis Zibrowius & Cairns, 1992 
North and East Iceland for Stylaster norvegicus (Gunnerus, 1768) 
South and West Iceland for Stylaster norvegicus (Gunnerus, 1768) 
Southern Norway for Stylaster norvegicus (Gunnerus, 1768)