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Poromyidae
Poromyidae is a family (biology), family of saltwater clams, marine (ocean), marine bivalve molluscs in the order (biology), order Anomalodesmata. The genus ''Dilemma (bivalve), Dilemma'', described in 2008, is remarkable for being a predator of copepods, which is very unusual for a Sessility (zoology), sessile mollusc. Genera and species Genera and species within the family Poromyidae include: *''Cetomya'' W. H. Dall, Dall, 1889 *''Dermatomya'' W. H. Dall, Dall, 1889 **''Dermatomya buttoni'' W. H. Dall, Dall, 1916 ** ''Dermatomya mactroides'' (W. H. Dall, Dall, 1889) * ''Dilemma (bivalve), Dilemma'' Leal, 2008 *''Lissomya'' Krylova, 1997 * ''Poromya'' Forbes, 1844 ** ''Poromya albida'' W. H. Dall, Dall, 1886 ** ''Poromya beringiana'' (W. H. Dall, Dall, 1916) ** ''Poromya elongata'' W. H. Dall, Dall, 1886 ** ''Poromya granulata'' (Nyst and Westendorp, 1839) ** ''Poromya houbricki'' Bernard, 1989 ** ''Poromya laevis'' E. A. Smith, 1885 ** ''Poromya leonina'' (W. H. Dall, Dall, 191 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dilemma (bivalve)
''Dilemma'' is a genus (biology), genus of marine (ocean), marine bivalves of the family (biology), family Poromyidae. The genus is remarkable for encompassing predators of isopods and ostracods, unusual for Sessility (zoology), sessile molluscs. One species is known from the western Atlantic Ocean (Straits of Florida) and three from across the Pacific. Specimens have been found at depths between . The name of the genus refers to the dilemma that the author of the new genus faced while diagnosing it. Species There are four species: * ''Dilemma frumarkernorum'' Leal, 2008 * ''Dilemma inexpectatum'' (Crozier, 1966) * ''Dilemma japonicum'' Sasaki & Leal, 2008 * ''Dilemma spectralis'' Leal, 2008 References Poromyidae Bivalve genera {{bivalve-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bivalve
Bivalvia () or bivalves, in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class (biology), class of aquatic animal, aquatic molluscs (marine and freshwater) that have laterally compressed soft bodies enclosed by a calcified exoskeleton consisting of a hinged pair of half-bivalve shell, shells known as valve (mollusc), valves. As a group, bivalves have no head and lack some typical molluscan organs such as the radula and the odontophore. Their gills have evolved into ctenidium (mollusc), ctenidia, specialised organs for feeding and breathing. Common bivalves include clams, oysters, Cockle (bivalve), cockles, mussels, scallops, and numerous other family (biology), families that live in saltwater, as well as a number of families that live in freshwater. Majority of the class are benthic filter feeders that bury themselves in sediment, where they are relatively safe from predation. Others lie on the sea floor or attach themselves to rocks or other h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anomalodesmata
Anomalodesmata is an superorder (biology), superorder of saltwater clams, marine (ocean), marine bivalve molluscs. This grouping was formerly recognised as a taxonomic subclass (biology), subclass. It is called a superorder in the current World Register of Marine Species, despite having no orders, to parallel it with sister taxon Imparidentia, which does have orders. Description The bivalve shell, shells of species in this order are of equal size, as are the muscles that hold them closed, and the margins at the hinges are thickened. The margins of the mantle (mollusc), mantle are also fused, and there is only a single hinge tooth, if any. Families In 2010, a new proposed classification system for the Bivalvia was published in ''Malacologia'' by Bieler, Carter & Coan revising the classification of the Bivalvia, including the order Anomalodesmata.Bieler, R., Carter, J.G. & Coan, E.V. (2010) ''Classification of Bivalve families''. Pp. 113-133, in: Bouchet, P. & Rocroi, J.P. (2010), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard Dell
Richard Kenneth Dell (11 July 1920 – 6 March 2002) was a New Zealand malacologist. Biography Dell was born in Auckland in 1920. As a young boy, he took an interest in shells, collecting them from the shores of Waitematā Harbour. He even managed to start a "museum" in his backyard. He also helped curate the Auckland War Memorial Museum shell collection. Dell studied at Mount Albert Grammar School and later at the Auckland University College. He took a teacher’s course at Auckland Teachers' College, but World War II delayed his plans to become a teacher. He joined the New Zealand Artillery, serving on Nissan Island, the Solomon Islands, Southwest Asia, Egypt, and Italy. He later published several papers on the land snails he had collected in the Solomon Islands. In 1946, he married botanist and schoolteacher Miriam Matthews, and they had four daughters together. His wife continued working after their marriage and became a well-known women's advocate. After the war ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
