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Janthina
''Janthina'' is a genus of small to medium-sized pelagic or planktonic sea snails, marine gastropod molluscs in the family Epitoniidae.Gofas, S. (2011). Janthina Röding, 1798. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=138092 on 2011-11-01 Distribution Species in this genus occur worldwide in tropical, subtropical and warm seas. Description These snails are pelagic and live at the surface of the ocean. Adult snails may not be capable of swimming, and die when they are detached from their rafts; ''Janthina janthina'' larvae, however, actively swim in the water column. The adult snails prey upon (and live near to) one of several species of pelagic animals loosely known as jellyfish. More specifically they eat the medusae of free-swimming Cnidaria, in particular the genus known as "by-the-wind sailors", ''Velella''. The snails are able to float securely because they create a raft of clear chitin around air bubbles ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Janthina Chavani
''Janthina'' is a genus of small to medium-sized pelagic or planktonic sea snails, marine gastropod molluscs in the family Epitoniidae.Gofas, S. (2011). Janthina Röding, 1798. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=138092 on 2011-11-01 Distribution Species in this genus occur worldwide in tropical, subtropical and warm seas. Description These snails are pelagic and live at the surface of the ocean. Adult snails may not be capable of swimming, and die when they are detached from their rafts; ''Janthina janthina'' larvae, however, actively swim in the water column. The adult snails prey upon (and live near to) one of several species of pelagic animals loosely known as jellyfish. More specifically they eat the medusae of free-swimming Cnidaria, in particular the genus known as "by-the-wind sailors", ''Velella''. The snails are able to float securely because they create a raft of clear chitin around air bubbles ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Janthina Typica
''Janthina'' is a genus of small to medium-sized pelagic or planktonic sea snails, marine gastropod molluscs in the family Epitoniidae.Gofas, S. (2011). Janthina Röding, 1798. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=138092 on 2011-11-01 Distribution Species in this genus occur worldwide in tropical, subtropical and warm seas. Description These snails are pelagic and live at the surface of the ocean. Adult snails may not be capable of swimming, and die when they are detached from their rafts; ''Janthina janthina'' larvae, however, actively swim in the water column. The adult snails prey upon (and live near to) one of several species of pelagic animals loosely known as jellyfish. More specifically they eat the medusae of free-swimming Cnidaria, in particular the genus known as "by-the-wind sailors", ''Velella''. The snails are able to float securely because they create a raft of clear chitin around air bubbles ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Janthina Krejcii
''Janthina'' is a genus of small to medium-sized pelagic or planktonic sea snails, marine gastropod molluscs in the family Epitoniidae.Gofas, S. (2011). Janthina Röding, 1798. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=138092 on 2011-11-01 Distribution Species in this genus occur worldwide in tropical, subtropical and warm seas. Description These snails are pelagic and live at the surface of the ocean. Adult snails may not be capable of swimming, and die when they are detached from their rafts; ''Janthina janthina'' larvae, however, actively swim in the water column. The adult snails prey upon (and live near to) one of several species of pelagic animals loosely known as jellyfish. More specifically they eat the medusae of free-swimming Cnidaria, in particular the genus known as "by-the-wind sailors", ''Velella''. The snails are able to float securely because they create a raft of clear chitin around air bubbles ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Janthina Globosa
''Janthina globosa'' is a species of holoplanktonic sea snail, a marine gastropod mollusk in the family Epitoniidae, the violet snails or purple storm snails.MolluscaBase (2019). MolluscaBase. Janthina globosa Swainson, 1822. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=214493 on 2019-10-09 Anatomy and Morphology ''Janthina globosa'', commonly referred to as the violet snail, is a neustonic organism characterized by its thin, fragile purple shell and large size The maximum recorded shell length is 38.5 mm.Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". '' PLoS ONE'' 5(1): e8776. . Females normally grow to larger sizes than males, making it easy to distinguish between the sexes. ''Janthina globosa'' has a glossy shell, characterized by four symmetrical spirals evenly spaced on its shell. Inside its shell lives the organism itself. Protected by its hard outer shell, ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Janthina Janthina
''Janthina janthina'' is a species of holoplanktonic sea snail, a marine gastropod mollusk in the family Epitoniidae. Its common names include violet sea-snail, common violet snail, large violet snail and purple storm snail. Distribution This species is found worldwide in the warm waters of tropical and temperate seas, floating at the surface. More specifically, the species is located in the tropical and subtropical Atlantic, Indian and Pacific oceans. They are often found in large groups and sometimes become stranded on beaches when they are blown ashore by strong winds. The snails are a unique part of the neuston, organisms which live on or near the surface of the water, because of their relatively large size. They have veliger, or free swimming larvae, but the adults do not swim, and cannot create their rafts, except at the surface where air bubbles are available. Habitat These snails are pelagic, drifting on the surface of the ocean, where they feed upon pelagic hydrozoa, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Janthina Exigua
''Janthina exigua'', also known as the dwarf janthina, is a species of small holoplanktonic sea snail, a marine gastropod mollusk in the family Epitoniidae, the violet snails or purple storm snails.MolluscaBase (2019). MolluscaBase. Janthina exigua Lamarck, 1816. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=140154 on 2019-10-09 Distribution This species is pelagic, and occurs around the world in tropical waters, in other words it is circumequatorial. It has been recorded from: * The Atlantic Ocean * British Isles * European waters * Madagascar * Mascarene Plateau * Mediterranean Sea * Mozambique * The Pacific Ocean * South Africa * The West Coast of Ireland Description The maximum recorded shell Shell may refer to: Architecture and design * Shell (structure), a thin structure ** Concrete shell, a thin shell of concrete, usually with no interior columns or exterior buttresses ** Thin-shell structure Science B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Janthina Pallida
''Janthina pallida'', also known as the pale janthina, is a species of holoplanktonic sea snail, a marine gastropod mollusk in the family Epitoniidae, the violet snails or purple storm snails. MolluscaBase (2019). MolluscaBase. Janthina pallida W. Thompson, 1840. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=140157 on 2019-10-09 Description The maximum recorded shell Shell may refer to: Architecture and design * Shell (structure), a thin structure ** Concrete shell, a thin shell of concrete, usually with no interior columns or exterior buttresses ** Thin-shell structure Science Biology * Seashell, a hard ou ... length is 28 mm.Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". '' PLoS ONE'' 5(1): e8776. . Habitat Minimum recorded depth is 0 m. Maximum recorded depth is 0 m. References Epitoniidae Gastropods described in 1840 {{Caenogastropoda-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Janthina Umbilicata
''Janthina umbilicata'', also known as the elongate janthina, is a species of holoplanktonic sea snail, a marine gastropod mollusk in the family Epitoniidae, the violet snails or purple storm snails.MolluscaBase (2019). MolluscaBase. Janthina umbilicata d'Orbigny, 1841. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=225271 on 2019-10-09 Description The maximum recorded shell Shell may refer to: Architecture and design * Shell (structure), a thin structure ** Concrete shell, a thin shell of concrete, usually with no interior columns or exterior buttresses ** Thin-shell structure Science Biology * Seashell, a hard ou ... length is 9.5 mm.Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". '' PLoS ONE'' 5(1): e8776. . Habitat Minimum recorded depth is 0 m. Maximum recorded depth is 0 m. References Epitoniidae Gastropods described in 1841 {{Caenogastropoda-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epitoniidae
Wentletraps are small, often white, very high-spired, predatory or ectoparasitic sea snails, marine gastropod mollusks in the family Epitoniidae.Gofas, S. (2010). Epitoniidae. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=132 on 24 April 2011 The word ''wentletrap'' originated in Dutch (''wenteltrap''), and it means spiral staircase. These snails are sometimes also called "staircase shells", and "ladder shells". The family Epitoniidae belongs to the superfamily Epitonioidea. Since 2017 this family also includes the former families Janthinidae (the pelagic purple snails) and Nystiellidae, all part of the informal group Ptenoglossa. Epitoniidae is a rather large family, with an estimated number of species about 630. Distribution Wentletraps inhabit all seas and oceans worldwide, from the tropical zones to the Arctic and Antarctic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Planktonic
Plankton are the diverse collection of organisms found in water (or air) that are unable to propel themselves against a current (or wind). The individual organisms constituting plankton are called plankters. In the ocean, they provide a crucial source of food to many small and large aquatic organisms, such as bivalves, fish and whales. Marine plankton include bacteria, archaea, algae, protozoa and drifting or floating animals that inhabit the saltwater of oceans and the brackish waters of estuaries. Freshwater plankton are similar to marine plankton, but are found in the freshwaters of lakes and rivers. Plankton are usually thought of as inhabiting water, but there are also airborne versions, the aeroplankton, that live part of their lives drifting in the atmosphere. These include plant spores, pollen and wind-scattered seeds, as well as microorganisms swept into the air from terrestrial dust storms and oceanic plankton swept into the air by sea spray. Though many planktonic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Velella
''Velella'' is a monospecific genus of hydrozoa in the Porpitidae family. Its only known species is ''Velella velella'', a cosmopolitan free-floating hydrozoan that lives on the surface of the open ocean. It is commonly known by the names sea raft, by-the-wind sailor, purple sail, little sail, or simply ''Velella''. This small cnidarian is part of a specialised ocean surface community that includes the better-known cnidarian siphonophore, the Portuguese man o' war. Specialized predatory gastropod molluscs prey on these cnidarians. Such predators include nudibranchs (sea slugs) in the genus ''Glaucus''Gosliner, T.M. (1987). ''Nudibranchs of Southern Africa'' page 127, and purple snails in the genus ''Janthina''.Branch, G.M., Branch, M.L, Griffiths, C.L. and Beckley, L.E. (2010). ''Two Oceans: a guide to the marine life of southern Africa.'' Cape Town:Struik Nature. page 188. . Each apparent individual is a hydroid colony, and most are less than about 7 cm long. They are us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Recluzia
''Recluzia'' is a genus of small to medium-sized pelagic or planktonic sea snails, marine gastropod molluscs in the family Epitoniidae.MolluscaBase (2019). MolluscaBase. Recluzia Petit de la Saussaye, 1853. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=204586 on 2019-10-09 Species * ''Recluzia johnii'' (Holten, 1802) * ''Recluzia lutea'' (Bennett, 1840) ;Species brought into synonymy: * ''Recluzia annamitica'' Wattebled, 1886 * ''Recluzia aperta'' Jeffreys, 1859: synonym of ''Torellia vestita'' Jeffreys, 1867: synonym of ''Torellia delicata'' (Philippi, 1844) * ''Recluzia bensoni'' A. Adams, 1861: synonym of ''Recluzia lutea'' (Bennett, 1840) * ''Recluzia effusa'' Thiele, 1928: synonym of ''Recluzia lutea'' (Bennett, 1840) * ''Recluzia erythraea'' Jickeli, 1882: synonym of ''Recluzia johnii'' (Holten, 1802) * ''Recluzia globosa'' E. A. Smith, 1876: synonym of ''Recluzia lutea'' (Bennett, 1840) * ''Recluzia hargrav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
