Nuculidae
Encyclopedia
Nuculidae is a family
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

 of small saltwater
Seawater
Seawater is water from a sea or ocean. On average, seawater in the world's oceans has a salinity of about 3.5% . This means that every kilogram of seawater has approximately of dissolved salts . The average density of seawater at the ocean surface is 1.025 g/ml...

 clam
Clam
The word "clam" can be applied to freshwater mussels, and other freshwater bivalves, as well as marine bivalves.In the United States, "clam" can be used in several different ways: one, as a general term covering all bivalve molluscs...

s in the order
Order (biology)
In scientific classification used in biology, the order is# a taxonomic rank used in the classification of organisms. Other well-known ranks are life, domain, kingdom, phylum, class, family, genus, and species, with order fitting in between class and family...

 Nuculoida
Nuculoida
Nuculanoida is an order of bivalves. It belongs to the subclass Protobranchia. They are distinguished from other bivalves by the presence of relatively primitive, "protobranchiate" gills, with a row of short teeth along the hinge of the shell. The shells are often nacreous.-Families:*...

. Species
Species
In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...

 in this family are commonly known as nut clams.

The nomenclature of the Western European species in this family is still uncertain. Their systematics has been based mainly on their feces
Feces
Feces, faeces, or fæces is a waste product from an animal's digestive tract expelled through the anus or cloaca during defecation.-Etymology:...

.

Genera

  • Acila H. Adams and A. Adams, 1858
  • Adrana Adams and Adams, 1858
  • Austronucula Powell
    Arthur William Baden Powell
    Dr Arthur William Baden Powell CBE was a New Zealand malacologist, naturalist and palaeontologist, a major influence in the study and classification of New Zealand molluscs through much of the twentieth century. He was known to his friends and family by his third name, "Baden".Powell was born at...

    , 1939
  • Brevinucula Thiele
    Johannes Thiele
    Johannes Thiele, full name Karl Hermann Johannes Thiele was a German zoologist specialized in malacology. His Handbuch der systematischen Weichtierkunde is a standard work...

    , 1934
  • Condylonucula D.R. Moore, 1977
  • Ennucula Iredale
    Tom Iredale
    Tom Iredale was an English-born ornithologist and malacologist who had a long association with Australia, where he lived for most of his life. He was an autodidact who never went to university and lacked formal training...

    , 1931
  • Lamellinucula Schenck, 1944
  • Leionucula Quenstedt, 1930 †
  • Linucula Marwick, 1931
  • Neonucula Lan & Lee, 2001
  • Nucula
    Nucula
    Nucula is a genus of clams of the family Nuculidae.-Species:* Nucula aegeensis Jeffreys, 1879 - Aegean nutclam* Nucula annulata Hampson, 1971 * Nucula atacellana Schenck, 1939 - cancellate nutclam...

    Lamarck, 1799
  • Nuculoidea
    Nuculoidea
    Nuculoidea is an superfamily of bivalves. It belongs to the order Nuculoidea. It comprises only one family: Nuculidae...

    H.S. Williams & Breger, 1916
  • Pronucula Hedley, 1902
  • Sinonucula Xu, 1985

Genera brought into synonymy :
  • Lionucula Thiele, 1934 synonym of Ennucula Iredale, 1931
  • Nuculoma Cossmann, 1907 : synonym of Ennucula Iredale, 1931
  • Polyodonta Megerle von Mühlfeld, 1811 : synonym of Nucula Lamarck, 1799
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