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Solmundaeginidae
Solmundaeginidae is a family of hydrozoans in the order Narcomedusae. Taxonomy The following genera Genus (; : genera ) is a taxonomic rank above species and below family as used in the biological classification of living and fossil organisms as well as viruses. In binomial nomenclature, the genus name forms the first part of the binomial s ... are recognized in the family Solmundaeginidae: * '' Aeginopsis'' Brandt, 1835 * '' Solmundaegina'' Lindsay, 2017 * '' Solmundella'' Haeckel, 1879 References Narcomedusae Cnidarian families {{Hydrozoa-stub ...
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Solmundella
''Solmundella'' is a genus of hydrozoan in the family (biology), family Solmundaeginidae. It is monotypic, with the single species ''Solmundella bitentaculata''. Distribution This species is found in: * Ross Sea, Antarctica. * European waters * Gulf of Mexico * Kenya * New Zealand * North West Atlantic * Mediterranean Sea Ecology ''Solmundella bitentaculata'' is an epipelagic and mesopelagic species.WoRMS (2010). Solmundella bitentaculata (Quoy & Gaimard, 1833). In: Schuchert, P. World Hydrozoa database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=117267 on 2011-01-31 It feeds on the gastropod ''Limacina antarctica''.Larson R. J. & Harbison G. R. (1990). "Medusae from Mcmurdo Sound, Ross Sea including the descriptions of two new species, ''Leuckartiara brownei'' and ''Benthocodon hyalinus''". ''Polar Biology'' 11(1): 19-25. . References

Solmundaeginidae Hydrozoan genera {{Hydrozoa-stub ...
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Narcomedusae
Narcomedusae is an order (biology), order of hydrozoans in the subclass Trachylinae. Members of this order do not normally have a polyp (zoology), polyp stage. The Medusa (biology), medusa has a dome-shaped bell with thin sides. The tentacles are attached above the lobed margin of the bell with usually a gastric pouch above each. There are no bulbs on the tentacles and no radial canals. Narcomedusans are mostly inhabitants of the open sea and deep waters. They can be found in the Mediterranean in large numbers. Narcomedusae are essential to the ecosystem as they are top-down regulators for the midwater environment. Feeding behavior Narcomedusae use their tentacles to catch large, fast-moving prey. They do this by holding their tentacles perpendicular to the direction they are swimming to cover a larger area. If something is caught they bend the tentacle inwards and coil them at the tips to their mouths. Reproductive features Narcomedusae are hermaphroditic, meaning that they h ...
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Family (biology)
Family (, : ) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". The delineation of what constitutes a family—or whether a described family should be acknowledged—is established and decided upon by active taxonomists. There are not strict regulations for outlining or acknowledging a family, yet in the realm of plants, these classifications often rely on both the vegetative and reproductive characteristics of plant species. Taxonomists frequently hold varying perspectives on these descriptions, leading to a lack of widespread consensus within the scientific community ...
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Hydrozoans
Hydrozoa (hydrozoans; from Ancient Greek ('; "water") and ('; "animals")) is a taxonomic class of individually very small, predatory animals, some solitary and some colonial, most of which inhabit saline water. The colonies of the colonial species can be large, and in some cases the specialized individual animals cannot survive outside the colony. A few genera within this class live in freshwater habitats. Hydrozoans are related to jellyfish and corals, which also belong to the phylum Cnidaria. Some examples of hydrozoans are the freshwater jelly ('' Craspedacusta sowerbyi''), freshwater polyps ('' Hydra''), ''Obelia'', Portuguese man o' war (''Physalia physalis''), chondrophores (Porpitidae), and pink-hearted hydroids ('' Tubularia''). Anatomy Most hydrozoan species include both a polypoid and a medusoid stage in their life cycles, although a number of them have only one or the other. For example, ''Hydra'' has no medusoid stage, while '' Liriope'' lacks the polypoid st ...
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Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. Phylogeneti ...
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