Sutilizona Pterodon
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''Sutilizona pterodon'' is a
species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...
of
sea snail Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the ...
, a marine
gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...
mollusk Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000  extant species of molluscs are recognized. The number of fossil species is e ...
in the
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 ...
Sutilizonidae Sutilizonidae is a taxonomic family of sea snails, deepwater hydrothermal vent snails, marine gastropod mollusks in the clade Vetigastropoda (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). Taxonomy This family has no ...
.


Description

The shell grows to a size of 2 mm.


Distribution

This marine species occurs off the
Mid-Atlantic Ridge The Mid-Atlantic Ridge is a mid-ocean ridge (a divergent or constructive plate boundary) located along the floor of the Atlantic Ocean, and part of the longest mountain range in the world. In the North Atlantic, the ridge separates the North Ame ...
.


References

* Warén, A. & Bouchet, P. (2001) ''Gastropoda and Monoplacophora from hydrothermal vents and seeps; new taxa and records''. The Veliger, 44, 116–231 * Geiger D.L. (2012) ''Monograph of the little slit shells. Volume 1. Introduction, Scissurellidae. pp. 1–728. Volume 2. Anatomidae, Larocheidae, Depressizonidae, Sutilizonidae, Temnocinclidae. pp. 729–1291.'' Santa Barbara Museum of Natural History Monographs Number 7. Sutilizonidae Gastropods described in 2001 {{Sutilizonidae-stub