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Abyla (cnidarian)
''Abyla'' is a genus of colonial siphonophore in the subfamily Abylidae and the suborder Calycophorae. The genus contains three species and was established by Quoy and Gaimard in 1827. Taxonomy Three species are currently recognized: A number of former species in the genus have since been synonymized to these three species. Distribution and habitat All species in the genus are strictly marine, inhabiting mostly the pelagic zone The pelagic zone consists of the water column of the open ocean, and can be further divided into regions by depth (as illustrated on the right). The word ''pelagic'' is derived . The pelagic zone can be thought of as an imaginary cylinder or w .... They are mainly found in tropico-equatorial and subtropic regions. References {{Taxonbar, from=Q4000264 Abylidae Hydrozoan genera Bioluminescent cnidarians ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abyla Bicarinata
''Abyla bicarinata'' is a colonial siphonophore in the family Abylidae The Abylidae are a family of marine invertebrates in the order Siphonophorae. They are colonial, but the colonies can superficially resemble jellyfish; although they appear to be a single organism, each specimen is actually a colony of Siphon .... It was described in 1925. Description A wide anterior nectophore with side ridges creates a wing like appearance and providing wing functions. They are also have rounded edges of facets. There is no transverse ridge between the ventral and apico-ventral facets. On the posterior side the nectophore is both the same width and length reinforcing the round and wing shape. They have combs that contain between 4 and 7 strong ostial teeth. Distribution The species has been found off the southeast coast of Hawaii at depths below 1000 m during the summer months. It was also spotted off the coast of California at 200 m. Individuals were found in the South China Sea duri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abyla Haeckeli
''Abyla haeckeli'' is a colonial siphonophore in the family Abylidae. It was described in 1908. Description The species has an anterior nectophore {{Short pages monitor [Baidu] |
Abyla Trigona
''Abyla trigona'' is a colonial siphonophore in the family Abylidae. It was described in 1925. Description The species has an anterior nectophore {{Short pages monitor [Baidu] |
Siphonophorae
Siphonophorae (from Greek ''siphōn'' 'tube' + ''pherein'' 'to bear') is an order within Hydrozoa, which is a class of marine organisms within the phylum Cnidaria. According to the World Register of Marine Species, the order contains 175 species thus far. Although a siphonophore may appear to be an individual organism, each specimen is in fact a colonial organism composed of medusoid and polypoid zooids that are morphologically and functionally specialized. Zooids are multicellular units that develop from a single fertilized egg and combine to create functional colonies able to reproduce, digest, float, maintain body positioning, and use jet propulsion to move. Most colonies are long, thin, transparent floaters living in the pelagic zone. Like other hydrozoans, some siphonophores emit light to attract and attack prey. While many sea animals produce blue and green bioluminescence, a siphonophore in the genus '' Erenna'' was only the second life form found to produce a red ligh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abylidae
The Abylidae are a family of marine invertebrates in the order Siphonophorae. They are colonial, but the colonies can superficially resemble jellyfish; although they appear to be a single organism, each specimen is actually a colony of Siphonophora. It contains the following taxa: * Subfamily Abylinae L. Agassiz, 1862 ** Genus '' Abyla'' Quoy & Gaimard, 1827 *** '' Abyla bicarinata'' Moser, 1925 *** '' Abyla haeckeli'' Lens & van Reimsdijk, 1908 *** '' Abyla trigona'' Quoy & Gaimard, 1827 ** Genus '' Ceratocymba'' Chun, 1888 *** '' Ceratocymba dentata'' (Bigelow, 1918) *** '' Ceratocymba leuckarti'' (Huxley, 1859) *** '' Ceratocymba sagittata'' Quoy & Gaimard, 1827 * Subfamily Abylopsinae Totton, 1954 ** Genus ''Abylopsis'' Chun, 1888 *** ''Abylopsis eschscholtzi ''Abylopsis'' is a siphonophore genus in the Abylidae. The genus contains bioluminescent Bioluminescence is the production and emission of light by living organisms. It is a form of chemiluminescence. Bi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calycophorae
Calycophorae is a suborder of Siphonophores alongside two other suborders Physonectae and Cystonectae. This suborder includes the giant siphonophore, ('' Praya dubia''); one of the longest lengthwise extant creatures (40–50m). While the Physonectae have a pneumatophore (a float), nectophore (or nectosome), and a siphosome, Cystonectae lack a nectophore, and Calycophorae lack a pneumatophore. From the bell-shaped nectophores, Physonectae and Calycophorae are called Codonophores or Greek for bell-bearers. The distribution, morphology, and behaviors of Calycophorae species are vast and greatly depend on the species. Calycophoraes typically consist of two nectophores with a siphosome that have many tentacles that grow out of the siphosome. The Calycophoraes move by propelling water out of the nectophore much like how jellyfishes move. The tentacles act as fishing nets where the nematocysts on the tentacles paralyze their prey which are then later fed on. Calycophorae have thre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pelagic Zone
The pelagic zone consists of the water column of the open ocean, and can be further divided into regions by depth (as illustrated on the right). The word ''pelagic'' is derived . The pelagic zone can be thought of as an imaginary cylinder or water column between the surface of the sea and the bottom. Conditions in the water column change with depth: pressure increases; temperature and light decrease; salinity, oxygen, micronutrients (such as iron, magnesium and calcium) all change. Marine life is affected by bathymetry (underwater topography) such as the seafloor, shoreline, or a submarine seamount, as well as by proximity to the boundary between the ocean and the atmosphere at the ocean surface, which brings light for photosynthesis, predation from above, and wind stirring up waves and setting currents in motion. The pelagic zone refers to the open, free waters away from the shore, where marine life can swim freely in any direction unhindered by topographical constraints. Th ... [...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 hydro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
