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Cardioidea
Cardioidea is a taxonomic superfamily of saltwater clams, marine bivalve molluscs consisting of the extant Cardiidae (cockles) and the extinct Pterocardiidae. Taxonomy These families are assigned to Cardioidea: *Family: Cardiidae Lamarck, 1809 **Subfamily Cardiinae Lamarck, 1809 **Subfamily Clinocardiinae Kafanov, 1975 **Subfamily Fraginae Stewart, 1930 **Subfamily Laevicardiinae Keen, 1951 **Subfamily Lahilliinae Finlay & Marwick, 1937† **Subfamily Lymnocardiinae Stoliczka, 1870 **Subfamily Orthocardiinae J. A. Schneider, 2002 **Subfamily Protocardiinae Bronn, 1849† **Subfamily Trachycardiinae Stewart, 1930 **Subfamily Tridacninae Tridacninae, common name, the giant clams, is a Taxonomy (biology), taxonomic family (biology), subfamily of very large saltwater clams, marine (ocean), marine bivalve molluscs in the family Cardiidae, the cockles. Description This subfamily con ... Lamarck, 1819 * Family: Pterocardiidae Scarlato & Starobogatov, 1979 **Genus Pt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tridacninae
Tridacninae, common name, the giant clams, is a Taxonomy (biology), taxonomic family (biology), subfamily of very large saltwater clams, marine (ocean), marine bivalve molluscs in the family Cardiidae, the cockles. Description This subfamily contains the largest living bivalve species, including ''Tridacna gigas'', the giant clam. They have heavy shells, fluted with 4–6 folds. The mantle (mollusc), mantle is usually brightly colored. They inhabit coral reefs in warm seas in the Indo-Pacific region. Most of these clams live in symbiosis with photosynthetic dinoflagellates (zooxanthellae). Systematics Sometimes the giant clams are still treated as a separate family Tridacnidae, but modern phylogenetics, phylogenetic analyses included them in the family Cardiidae as a subfamily. Two recent genera and eight species are known: * ''Hippopus''—2 species * ''Tridacna''—10 species Recent genetic evidence has shown them to be monophyletic sister taxa. Image:Hippopus hippopus Vanuat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bivalve
Bivalvia (), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts. As a group, bivalves have no head and they lack some usual molluscan organs, like the radula and the odontophore. They include the clams, oysters, cockles, mussels, scallops, and numerous other families that live in saltwater, as well as a number of families that live in freshwater. The majority are filter feeders. The gills have evolved into ctenidia, specialised organs for feeding and breathing. Most bivalves bury themselves in sediment, where they are relatively safe from predation. Others lie on the sea floor or attach themselves to rocks or other hard surfaces. Some bivalves, such as the scallops and file shells, can swim. The shipworms bore into wood, clay, or stone and live inside these substances. The shell of a bivalve is composed of calc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cerastoderma Edule
The common cockle (''Cerastoderma edule'') is a species of edible saltwater clam, a marine bivalve mollusc in the family Cardiidae, the cockles. It is found in waters off Europe, from Iceland in the north, south into waters off western Africa as far south as Senegal. The ribbed oval shells can reach across and are white, yellowish or brown in colour. The common cockle is harvested commercially and eaten in much of its range. Taxonomy and naming The common cockle was one of the many invertebrate species originally described by Carl Linnaeus in the landmark 1758 10th edition of '' Systema Naturae'', where it was given its old binomial name ''Cardium edule''. The species name is derived from the Latin adjective ''ĕdūlis'' "edible". Italian naturalist Giuseppe Saverio Poli erected the genus '' Cerastoderma'' in 1795, making the common cockle the type species as ''Cerastoderma edule''. The genus name is derived from the Ancient Greek words ''keras'' "horn" and ''derma'' "skin". ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
