Rhopalonematidae

	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]
	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]
	Voragonema ''Voragonema'' is a genus of hydrozoans belonging to the family Rhopalonematidae. The genus comprises four species.Lindsay, Dhugal & Francesc Pagès, 2010. "''Voragonema tatsunoko'' (Trachymedusae: Rhopalonematidae) a new species of benthopelagic medusa, host to the hyperiid amphipod ''Mimonectes spandli'' (Physosomata: Mimonectidae)." ''Zootaxa'' 2671: 31-39. Unlike most hydromedusae, these do not have a sessile Sessility, or sessile, may refer to: * Sessility (motility), organisms which are not able to move about * Sessility (botany), flowers or leaves that grow directly from the stem or peduncle of a plant * Sessility (medicine), tumors and polyps that ... stage. Rather, they spend their entire lives in the water column as plankton. Centripetal expansions protruding from the ring canal is a characteristic that separates this genus from other genera in the family Rhopalonematidae. Species '' Voragonema laciniata'' '' Voragonema pedunculata'' '' Voragonema profundicola' ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Vampyrocrossota ''Vampyrocrossota'' is a genus of hydrozoans of the family Rhopalonematidae.Thuesen, E.V. 1993. ''Vampyrocrossota childressi'', a new genus and species of black medusa from the bathypelagic zone off California (Cnidaria: Trachymedusae: Rhopalonematidae). Proceedings of the Biological Society of Washington 106 (1): 190-194. http://biostor.org/cache/pdf/a3/f3/cc/a3f3cc72a73958a5bc0da92920424458.pdf The genus only contains one species, ''Vampyrocrossota childressi''. Unlike many hydromedusae, these animals do not have a sessile Sessility, or sessile, may refer to: * Sessility (motility), organisms which are not able to move about * Sessility (botany), flowers or leaves that grow directly from the stem or peduncle of a plant * Sessility (medicine), tumors and polyps that ... stage. Rather, they spend their entire lives in the water column as plankton. It is the only known species with a medusa that is truly black. Distribution ''Vampyrocrossota childressi'' has only been found in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	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 ''Crossota'' is widespread throughout the oceans. Species ''Crossota alba'' ''Crossota brunnea'' ''Crossota millsae'' ''Crossota norvegica'' ''Crossota rufobrunnea ''Crossota rufobrunnea'' is a species of hydrozoan. References Animals described in 2016 Rhopalonematidae {{hydrozoa-stub ...'' References World Register of Marine Species Rhopalonematidae Hydrozoan genera Bioluminescent cnidarians {{hydrozoa-stub ... [...More Info...] [...Related Items...] OR:* [Wikipedia] [Google] [Baidu]
	Benthocodon ''Benthocodon'' is a genus of hydrozoans of the family Rhopalonematidae. The genus contains two known species: ''Benthocodon hyalinus'' and ''Benthocodon pedunculatus'', however due to the small size and red pigmentation, they can easily be confused with related genera. Unlike many hydromedusae, these jellyfish do not have a sessile Sessility, or sessile, may refer to: * Sessility (motility), organisms which are not able to move about * Sessility (botany), flowers or leaves that grow directly from the stem or peduncle of a plant * Sessility (medicine), tumors and polyps that ... stage. Rather, they spend their entire lives in the water column as plankton. The genus ''Benthocodon'' can be found near the sea floor in the Pacific Ocean from Antarctica to California to the Arctic Ocean. References Rhopalonematidae Fauna of the Pacific Ocean Monotypic cnidarian genera Hydrozoan genera {{hydrozoa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Crossota Norvegica ''Crossota norvegica'' is a species of hydrozoan in the family Rhopalonematidae. It is closely related to ''Crossota millsae'' and is found in the Arctic Ocean at depths below . ''Crossota norvegica'' is also known as the deep red jellyfish. This species is described as "alien-like" and is known for its vibrant red hue. It is a small cnidarian, reaching only up to 2 cm in its body size. Description Unlike other cnidarians, ''Crossota norvegica'' lives its entire life in the planktonic stage or the planula stage, instead of experiencing both the sessile stage and planula stage. Another unique trait off this species is that it does not develop into a polyp. Polyps typically produce the sexual reproduction gametes of cnidarians by budding. These polyps are stationary and non-moving forms of cnidarians (The Columbia Encyclopedia). Others will reproduce sexually in the medusa stage, where they are free-swimming cnidarians. During this stage they are typically very small, around 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Tetrorchis ''Tetrorchis'' is a monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispec ... genus of deep-sea hydrozoan in the family Rhopalonematidae. It is represented by the species ''Tetrorchis erythrogaster''. References Rhopalonematidae Animals described in 1909 {{hydrozoa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Sminthea ''Sminthea'' is a genus of deep-sea hydrozoans of the family of Rhopalonematidae, Species * '' Sminthea apicigastrica'' Xu, Huang & Du, 2009 * '' Sminthea eurygaster'' Gegenbaur, 1857 References Rhopalonematidae Hydrozoan genera {{hydrozoa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Rhopalonema ''Rhopalonema'' is a genus of deep-sea hydrozoans of the family Rhopalonematidae. Species There are two species: * '' Rhopalonema funerarium'' Vanhöffen, 1902 * '' Rhopalonema velatum'' Gegenbaur, 1857 References Rhopalonematidae Hydrozoan genera {{hydrozoa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Pantachogon ''Pantachogon'' is a genus of hydrozoans of the family Rhopalonematidae. The genus includes three species. References World Register of Marine Species Rhopalonematidae Hydrozoan genera {{hydrozoa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	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]
	Amphogona ''Amphogona'' is a genus of deep-sea hydrozoans of the family of Rhopalonematidae. It has a cosmopolitan distribution In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the world in appropriate habitats. Such a taxon, usually a species, is said to exhibit cosmopolitanism or cosmopolitism. The ext ... in tropical to temperate oceans. Species There are three species: * ''Amphogona apicata'' Kramp, 1957 * ''Amphogona apsteini'' ( Vanhöffen, 1902) * ''Amphogona pusilla'' Hartlaub, 1909 References Rhopalonematidae Hydrozoan genera {{hydrozoa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]