''Skenella umbilicata'' 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 minute
sea snail, a marine
gastropod 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 group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...
Cingulopsidae
Cingulopsidae is a family of sea snails, marine gastropod molluscs in the clade Littorinimorpha
Littorinimorpha is a large order of snails, gastropods, consisting primarily of sea snails (marine species), but also including some freshwater sna ...
.
Distribution
Description
The maximum recorded
shell
Shell may refer to:
Architecture and design
* Shell (structure), a thin structure
** Concrete shell, a thin shell of concrete, usually with no interior columns or exterior buttresses
** Thin-shell structure
Science Biology
* Seashell, a hard o ...
length is 1.66 mm.
[Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". '' PLoS ONE'' 5(1): e8776. .]
Habitat
Minimum recorded depth is 4 m.
Maximum recorded depth is 10 m.
References
* Ponder, W. F. (1983
''Rissoaform gastropods from the Antarctic and sub-Antarctic: the Eatoniellidae, Rissoidae, Barleeidae, Cingulopsidae, Orbitestellidae and Rissoellidae (Mollusca: Gastropoda) of Signy Island, South Orkney Islands, with a review of the Antarctic and sub-Antarctic (excluding southern South America and the New Zealand sub-Antarctic islands) species'' British Antarctic Survey, Scientific Reports 108: 1–96
External links
Southern Ocean Mollusc Database (SOMBASE): ''Skenella umbilicata''
Cingulopsidae
Gastropods described in 1983
{{Cingulopsidae-stub