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Tridacna
''Tridacna'' is a genus of large saltwater clams, marine bivalve molluscs in the subfamily Tridacninae, the giant clams. They have heavy shells, fluted with 4 to 6 folds. The mantle is brightly coloured. They inhabit shallow waters of coral reefs in warm seas of the Indo-Pacific region.Huelsken, T., Keyse, J., Liggins, L., Penny, S., Treml, E.A., Riginos, C. (2013) A Novel Widespread Cryptic Species and Phylogeographic Patterns within Several Giant Clam Species (Cardiidae: Tridacna) from the Indo-Pacific Ocean. PLoS ONEDOI: 10.1371/journal.pone.0080858 These clams are popular in marine aquaria, and in some areas, such as the Philippines, members of the genus are farmed for the marine aquarium trade. They live in symbiosis with photosynthetic algae (zooxanthellae). Some species are eaten by humans. All species in the genus ''Tridacna'' are protected under CITES Appendix II. Systematics and phylogeny The genus contains the following species: * '' Tridacna crocea'' Lamarck, 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tridacna Elongatissima
''Tridacna'' is a genus of large saltwater clams, marine bivalve molluscs in the subfamily Tridacninae, the giant clams. They have heavy shells, fluted with 4 to 6 folds. The mantle is brightly coloured. They inhabit shallow waters of coral reefs in warm seas of the Indo-Pacific region.Huelsken, T., Keyse, J., Liggins, L., Penny, S., Treml, E.A., Riginos, C. (2013) A Novel Widespread Cryptic Species and Phylogeographic Patterns within Several Giant Clam Species (Cardiidae: Tridacna) from the Indo-Pacific Ocean. PLoS ONEDOI: 10.1371/journal.pone.0080858 These clams are popular in marine aquaria, and in some areas, such as the Philippines, members of the genus are farmed for the marine aquarium trade. They live in symbiosis with photosynthetic algae (zooxanthellae). Some species are eaten by humans. All species in the genus ''Tridacna'' are protected under CITES Appendix II. Systematics and phylogeny The genus contains the following species: * '' Tridacna crocea'' Lamarck, 18 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giant Clam
The giant clams are the members of the clam genus ''Tridacna'' that are the largest living bivalve mollusks. There are actually several species of "giant clams" in the genus ''Tridacna'', which are often misidentified for ''Tridacna gigas'', the most commonly intended species referred to as "the giant clam". ''Tridacna gigas'' is one of the most endangered clam species. Antonio Pigafetta documented these in his journal as early as 1521. One of a number of large clam species native to the shallow coral reefs of the South Pacific and Indian oceans, they can weigh more than , measure as much as across and have an average lifespan in the wild of over 100 years. They are also found off the shores of the Philippines and in the South China Sea in the coral reefs of Sabah (Malaysian Borneo). The giant clam lives in flat coral sand or broken coral and can be found at depths of as much as 20 m (66 ft).#Reference-idKnop1996, Knop, p. 10. Its range covers the Indo-Pacific, but p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giant Clam (Tridacna)
The giant clams are the members of the clam genus ''Tridacna'' that are the largest living bivalve mollusks. There are actually several species of "giant clams" in the genus ''Tridacna'', which are often misidentified for ''Tridacna gigas'', the most commonly intended species referred to as "the giant clam". ''Tridacna gigas'' is one of the most endangered clam species. Antonio Pigafetta documented these in his journal as early as 1521. One of a number of large clam species native to the shallow coral reefs of the South Pacific and Indian oceans, they can weigh more than , measure as much as across and have an average lifespan in the wild of over 100 years. They are also found off the shores of the Philippines and in the South China Sea in the coral reefs of Sabah (Malaysian Borneo). The giant clam lives in flat coral sand or broken coral and can be found at depths of as much as 20 m (66 ft). Knop, p. 10. Its range covers the Indo-Pacific, but populations are diminis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tridacna Gigas
The giant clams are the members of the clam genus ''Tridacna'' that are the largest living bivalve mollusks. There are actually several species of "giant clams" in the genus ''Tridacna'', which are often misidentified for ''Tridacna gigas'', the most commonly intended species referred to as "the giant clam". ''Tridacna gigas'' is one of the most endangered clam species. Antonio Pigafetta documented these in his journal as early as 1521. One of a number of large clam species native to the shallow coral reefs of the South Pacific and Indian oceans, they can weigh more than , measure as much as across and have an average lifespan in the wild of over 100 years. They are also found off the shores of the Philippines and in the South China Sea in the coral reefs of Sabah (Malaysian Borneo). The giant clam lives in flat coral sand or broken coral and can be found at depths of as much as 20 m (66 ft). Knop, p. 10. Its range covers the Indo-Pacific, but populations are diminis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tridacna Maxima
The maxima clam (''Tridacna maxima''), also known as the small giant clam, is a species of bivalve mollusc found throughout the Indo-Pacific region.MolluscaBase eds. (2022). MolluscaBase. Tridacna maxima (Röding, 1798). Accessed through: World Register of Marine Species at: https://marinespecies.org/aphia.php?p=taxdetails&id=207675 on 2022-10-13 They are much sought after in the aquarium trade, as their often striking coloration mimics that of the true giant clam; however, the ''maximas'' maintain a manageable size, with the shells of large specimens typically not exceeding in length. Description Bivalves have two valves on the mantle. These siphon water through the body to extract oxygen from the water using the gills and to feed on algae.Ellis, S. (1998) Spawning and early larval rearing of giant clams (Bivalvia: Tridacnidae). Center for Tropical and Subtropical Aquaculture, 130: 1–55. The ''maxima'' is less than one-third the size of the true giant clam (''Tridacna gi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tridacna Costata
''Tridacna squamosina'' is a species of the ''Tridacna'' genus, the giant clams. These animals are bivalve mollusks belonging to the family Cardiidae identified by Sturany 1899. In 2008 Roa-Quiaoit, Kochzius, Jantzen, Zibdah & Richter identified what they believed was a new species of giant clam they called ''Tridacna costata'', however in 2011 Markus Huber and Anita Eschner examined a collection of Rudolf Sturanys specimens, held in the Natural History Museum, Vienna, that had remained not properly identified for over 100 years and discovered it was actually ''Tridacna squamosina''. The collection held seven syntypes were identified and ''Tridacna squamosina'' was accepted and ''Tridacna costata'' formally synonymized. Physical characteristics ''Tridacna squamosina'' has is a bivalve mollusk with an elongated. The shell has a few folds compared to other bivalve tridacnas, about 5–7 of the on each shell. The upper shell has somewhat large tooth-like formations projecting form ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tridacna Squamosina
''Tridacna squamosina'' is a species of the ''Tridacna'' genus, the giant clams. These animals are bivalve mollusks belonging to the family Cardiidae identified by Sturany 1899. In 2008 Roa-Quiaoit, Kochzius, Jantzen, Zibdah & Richter identified what they believed was a new species of giant clam they called ''Tridacna costata'', however in 2011 Markus Huber and Anita Eschner examined a collection of Rudolf Sturanys specimens, held in the Natural History Museum, Vienna, that had remained not properly identified for over 100 years and discovered it was actually ''Tridacna squamosina''. The collection held seven syntypes were identified and ''Tridacna squamosina'' was accepted and ''Tridacna costata'' formally synonymized. Physical characteristics ''Tridacna squamosina'' has is a bivalve mollusk with an elongated. The shell has a few folds compared to other bivalve tridacnas, about 5–7 of the on each shell. The upper shell has somewhat large tooth-like formations projecting form ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tridacna Derasa
''Tridacna derasa'', the southern giant clam or smooth giant clam, is a species of extremely large marine clam in the family Cardiidae. Description The southern giant clam is one of the largest of the "giant clams", reaching up to 60 cm in length.CITES: Twenty-second Meeting of the Animals Committee , Lima (Peru), 7–13 July 2006 (January 2007). The species is also known as the smooth giant clam because of the relative lack of ribbing and scales on its thick shell. The smoothness of the southern giant clam's shell and its six to seven vertical folds help to distinguish it from its larger relative, '''', which has four to five folds and a rougher text ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tridacna Squamosa
''Tridacna squamosa'', known commonly as the fluted giant clam and scaly clam, is a species of bivalve in the family Cardiidae. MolluscaBase eds. (2022). MolluscaBase. Tridacna squamosa Lamarck, 1819. Accessed through: World Register of Marine Species at: https://marinespecies.org/aphia.php?p=taxdetails&id=207674 on 2022-10-13 It is one of a number of large clam species native to the shallow coral reefs of the South Pacific and Indian Oceans. It is distinguished by the large, leaf-like fluted edges on its shell called 'scutes' and a byssal opening that is small compared to those of other members of the subfamily Tridacnindae. Normal coloration of the mantle ranges from browns and purples to greens and yellows arranged in elongated linear or spot-like patterns. ''Tridacna squamosa'' grows to across. Sessile in adulthood, the clam's mantle tissues act as a habitat for the symbiotic single-celled dinoflagellate algae (zooxanthellae) from which it gets a major portion of its nu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tridacna Crocea
''Tridacna crocea'', the boring clam, crocus clam, crocea clam or saffron-coloured clam, is a species of bivalve in the family Cardiidae. It is native to the Indo-Pacific region. It is occasionally found in the aquarium trade Huelsken, T., Keyse, J., Liggins, L., Penny, S., Treml, E.A., Riginos, C. (2013) A Novel Widespread Cryptic Species and Phylogeographic Patterns within Several Giant Clam Species (Cardiidae: Tridacna) from the Indo-Pacific Ocean. PLoS ONEDOI: 10.1371/journal.pone.0080858 where it is often simply referred to as ''crocea''. Description The boring clam is the smallest clam in the subfamily Tridacninae and grows to a maximum shell size of . It has two, thick valves joined by a hinge which is typically between a third and less than a half of the width of the shell. Typically shells are slightly to moderately elongate, and the animal is strongly inflated, especially near the hinge. The upper valve has six to ten flattish folds which interlock at the margin with si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tridacna Rosewateri
''Tridacna rosewateri'' is a species of marine bivalve in the family Cardiidae. MolluscaBase eds. (2022). MolluscaBase. Tridacna rosewateri Sirenko & Scarlato, 1991. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=466760 on 2022-10-13 Distribution It is endemic to Mauritius Mauritius ( ; french: Maurice, link=no ; mfe, label=Mauritian Creole, Moris ), officially the Republic of Mauritius, is an island nation in the Indian Ocean about off the southeast coast of the African continent, east of Madagascar. It incl .... Locus typicus: "Saya de Malha Bank, Indian Ocean."Sirenho & Scarlato, 1991-''La Conchiglia, Year.XXII, No. 261, Oct-Dec.1991'', pages 4-9. References * Sirenko, B. I. & Scarlato, O. A. (1991). Tridacna rosewateri sp. n. Una nuova specie di Tridacna dall'Oceano Indiano. A new species of giant clam from Indian Ocean. La Conchiglia. 22 (261): 4-9 * Sirenko, B. I. & Scarlato, O. A. (1991). Tridacna r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tridacna Noae
''Tridacna noae'', also known as Noah’s giant clam or the Teardrop giant clam, is a species of giant clam. Up until recently, ''T. noae'' was confused with the small giant clam ''Tridacna maxima'', but is now known to be its own independent species. It has a broad distribution in the Indo-Pacific. As with all giant clams, populations of ''T. noae'', are declining due to human exploitation of flesh for consumption, shells, and as aquarium pets. ''T. noae'' and all members of ''Tridacninae'' are considered endangered, and have been since 1985. Taxonomy ''T. noae'' are marine bivalve molluscs in the subfamily ''Tridacninae'', also known as giant clams. ''T. noae'' was originally described and named by Röding (1798) based on figures in Chemnitz (1784). Description ''T. noae'' have a physical appearance typical to that of most bivalves, especially those in the ''Tridacninae'', or giant clam, subfamily. ''T. noae'' typically have a shell length between 6–20 cm, and shell ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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