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Arctapodema
''Arctapodema'' is a genus of deep-sea hydrozoans in the family Rhopalonematidae. Species * ''Arctapodema ampla'' Vanhöffen, 1902 * ''Arctapodema antarctica'' Vanhöffen, 1912 * ''Arctapodema australis'' Vanhöffen, 1902 * ''Arctapodema macrogaster'' Vanhöffen, 1902 Invalid species * ''Arctapodema antarcticum'' (Vanhöffen, 1912) ncorrect gender suffix* ''Arctapodema australe'' Vanhöffen, 1912 ncorrect spelling References Rhopalonematidae Hydrozoan genera Animals described in 1888 {{hydrozoa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhopalonematidae
Rhopalonematidae is a family of hydrozoans. The family comprises 15 genera and 36 species. Genera *'' Aglantha'' (4 species) *'' Aglaura'' (monotypic – ''Aglaura hemistoma'') *'' Amphogona'' (3 species) *'' Arctapodema'' (4 species) *'' Benthocodon'' (2 species) *'' Colobonema'' (3 species) *''Crossota ''Crossota'' is a genus of hydrozoans of the family Rhopalonematidae. The genus comprises five species. Unlike most hydromedusae, these do not have a sessile stage. Rather, they spend their entire lives in the water column as plankton. The genus ...'' (5 species) *'' Pantachogon'' (3 species) *'' Persa'' (monotypic – ''Persa incolorata'') *'' Ransonia'' (monotypic – ''Ransonia krampi'') *'' Rhopalonema'' (2 species) *'' Sminthea'' (2 species) *'' Tetrorchis'' (monotypic – ''Tetrorchis erythrogaster'') *'' Vampyrocrossota'' (monotypic – ''Vampyrocrossota childressi'') *'' Voragonema'' (4 species) References * Schuchert, Peter (2005)The Hydrozoa Directory†Retriev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrozoans
Hydrozoa (hydrozoans; ) are 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 and 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), "air fern" (''Sertularia argentea''), and pink-hearted hydroids (''Tubularia''). Anatomy Most hydrozoan species include both a polypoid and a medusoid stage in their lifecycles, although a number of them have only one or the other. For example, ''Hydra'' has no medusoid stage, while '' Liriope'' lacks the polypoid stage. Polyps The hydroid fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrozoan Genera
Hydrozoa (hydrozoans; ) are 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 and 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), "air fern" (''Sertularia argentea''), and pink-hearted hydroids (''Tubularia''). Anatomy Most hydrozoan species include both a polypoid and a medusoid stage in their lifecycles, although a number of them have only one or the other. For example, ''Hydra'' has no medusoid stage, while '' Liriope'' lacks the polypoid stage. Polyps The hydroid fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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