Limopsidae is a

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

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, bival ...

s, related to the

ark clam Ark clam is the common name for a family of small to large-sized saltwater clams or marine bivalve molluscs in the family Arcidae. Ark clams vary both in shape and size. They number about 200 species worldwide. The shells of ark clams are of ...

s and

bittersweet Bittersweet, bitter-sweet, or bitter sweet may refer to: Biology * A vine in the nightshade family, ''Solanum dulcamara'' * Some species of vines in the genus ''Celastrus'', including American bittersweet (''C. scandens'') and Oriental bitters ...

s. This family contains about thirty species in seven genera.

Species

* '' Crenulilimopsis'' Kuroda & Habe, 1971 * '' Cnisma'' Mayer, 1868 * '' Empleconia'' Dall, 1908 * '' Limarca'' Tate, 1886 * '' Limopsis'' Sassi, 1827 ** '' Limopsis affinis'' A. E. Verrill, 1885 ** '' Limopsis antillensis'' Dall, 1881 ** '' Limopsis aurita'' ** '' Limopsis cristata'' Jeffreys, 1876 ** '' Limopsis davidis'' Hedley, 1899original species description, pages 564–565.
** '' Limopsis davinae'' Esteves, 1984 ** '' Limopsis galathea'' ** '' Limopsis hirtella'' Mabille & Rochebrune, 1889 ** '' Limopsis janeiroensis'' E. A. Smith, 1915 ** '' Limopsis marionensis'' E. A. Smith, 1885 ** ''

Limopsis minuta ''Limopsis'' is a genus of bivalves belonging to the family Limopsidae. The genus has cosmopolitan distribution In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the world in ...

'' (

Philippi Philippi (; grc-gre, Φίλιπποι, ''Philippoi'') was a major Greek city northwest of the nearby island, Thasos. Its original name was Crenides ( grc-gre, Κρηνῖδες, ''Krenides'' "Fountains") after its establishment by Thasian colon ...

, 1836) ** '' Limopsis multistrata'' ** '' Limopsis onchodes'' Dall, 1927 ** '' Limopsis paucidentata'' Dall, 1886 ** '' Limopsis pelagica'' E. A. Smith, 1885 ** '' Limopsis perieri'' P. Fischer, 1869 ** '' Limopsis plana'' A. E. Verrill, 1885 ** '' Limopsis radialis'' Dall, 1927 ** '' Limopsis spicata'' Oliver & Allen, 1980 ** '' Limopsis sulcata'' A. E. Verrill & Bush, 1898 ** '' Limopsis surinamensis'' Oliver & Allen, 1980 ** '' Limopsis tenella'' Jeffreys, 1876 ** '' Limopsis zealandica'' Hutton, 1873 * '' Nipponolimopsis'' Habe, 1951 * '' Nucunella''

d'Orbigny Alcide Charles Victor Marie Dessalines d'Orbigny (6 September 1802 – 30 June 1857) was a French naturalist who made major contributions in many areas, including zoology (including malacology), palaeontology, geology, archaeology and anthropol ...

, 1850

''Limopsis''

Species of the genus '' Limopsis'' are among the few suspension feeding deep-sea bivalves, and are absent from the

continental shelf A continental shelf is a portion of a continent that is submerged under an area of relatively shallow water, known as a shelf sea. Much of these shelves were exposed by drops in sea level during glacial periods. The shelf surrounding an island ...

. They are relatively small, byssate (i.e. attached to the sea floor by strong threads, or

byssus A byssus () is a bundle of filaments secreted by many species of bivalve mollusc that function to attach the mollusc to a solid surface. Species from several families of clams have a byssus, including pen shells (Pinnidae), true mussels (Mytilid ...

), and, while the viscera are reduced, there is a comparatively thick shell. Differences between species are usually defined by minor differences in

gill A gill () is a respiratory organ that many aquatic organisms use to extract dissolved oxygen from water and to excrete carbon dioxide. The gills of some species, such as hermit crabs, have adapted to allow respiration on land provided they are ...

and palp structure. The eggs are relatively few and of a size which suggests that the

plankton Plankton are the diverse collection of organisms found in Hydrosphere, water (or atmosphere, air) that are unable to propel themselves against a Ocean current, current (or wind). The individual organisms constituting plankton are called plankt ...

larva A larva (; plural larvae ) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle. The ...

e do not fee

References

Limopsidae, Bivalve families {{bivalve-stub