Neomphaloidea
Encyclopedia
Neomphaloidea is a superfamily
Taxonomic rank
In biological classification, rank is the level in a taxonomic hierarchy. Examples of taxonomic ranks are species, genus, family, and class. Each rank subsumes under it a number of less general categories...

 of deep-sea snail
Sea snail
Sea snail is a common name for those snails that normally live in saltwater, marine gastropod molluscs....

s or limpet
Limpet
Limpet is a common name for a number of different kinds of saltwater and freshwater snails ; it is applied to those snails that have a simple shell which is more or less conical in shape, and either is not spirally coiled, or appears not to be coiled in the adult snails.The name limpet is most...

s, marine
Marine (ocean)
Marine is an umbrella term. As an adjective it is usually applicable to things relating to the sea or ocean, such as marine biology, marine ecology and marine geology...

 gastropod mollusks in the clade Vetigastropoda
Vetigastropoda
Vetigastropoda is a major taxonomic group of sea snails, marine gastropod mollusks that form a very ancient lineage. Taxonomically Vetigastropoda are sometimes treated as an order although they are a clade in Bouchet and Rocroi, 2005....

 (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005
Taxonomy of the Gastropoda (Bouchet & Rocroi, 2005)
The taxonomy of the Gastropoda as it was revised by Philippe Bouchet and Jean-Pierre Rocroi is currently the most up-to-date overall system for classifying gastropod mollusks...

). They are commonly known as "hydrothermal vent
Hydrothermal vent
A hydrothermal vent is a fissure in a planet's surface from which geothermally heated water issues. Hydrothermal vents are commonly found near volcanically active places, areas where tectonic plates are moving apart, ocean basins, and hotspots. Hydrothermal vents exist because the earth is both...

 limpets".

The other superfamily of hydrothermal vent limpets is the Lepetodriloidea
Lepetodriloidea
Lepetodriloidea is a superfamily of small to large sea snails, marine gastropod mollusks in the clade Vetigastropoda.-Families :Families within the superfamily Lepetodriloidea include:*Family Lepetodrilidae McLean, 1988*Family Clypeosectidae McLean, 1989...

.

Families

Families within the Neomphaloidea include:
  • Melanodrymiidae
    Melanodrymiidae
    Melanodrymiidae is a family of gastropods in the clade Vetigastropoda .This family has no subfamilies.- Genera and species :...

     Salvini-Plawen & Steiner, 1995
  • Neomphalidae McLean, 1981
  • Peltospiridae
    Peltospiridae
    Peltospiridae is a small family of gastropods in the clade Vetigastropoda .This family has no subfamilies but contains two genera each with a single described species....

     McLean, 1989


A few genera have been unassigned:
  • Helicrenion Warén & Bouchet, 1993
  • Retiskenea
    Retiskenea
    Retiskenea is a genus of sea snails, marine gastropod mollusks in the superfamily Neomphaloidea.-Species:Species within the genus Retiskenea include:* Retiskenea diploura Warén & Bouchet, 2001...

    Warén & Bouchet, 2001
  • Vetulonia
    Vetulonia (gastropod)
    Vetulonia is a genus of sea snails, marine gastropod mollusks, unassigned in the superfamily Neomphaloidea.-Species:Species within the genus Vetulonia include:* Vetulonia densilirata Dall, 1927...

    Dall, 1913
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