''Alvania akibai'' is a

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

of small

sea snail Sea snails are slow-moving marine (ocean), marine gastropod Mollusca, molluscs, usually with visible external shells, such as whelk or abalone. They share the Taxonomic classification, taxonomic class Gastropoda with slugs, which are distinguishe ...

, a marine

gastropod Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, freshwater, and fro ...

mollusk Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The ...

micromollusk A micromollusc is a shelled mollusc which is extremely small, even at full adult size. The word is usually, but not exclusively, applied to marine molluscs, although in addition, numerous species of land snails and freshwater molluscs also ...

in the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Rissoidae Rissoidae is a large family of sea snails. Members of the Rissoidae are very small in size and possess an operculum. Distribution and habitat Rissoidae are found worldwide. They live on sandy or gravel bottoms among algae or marine plants. Th ...

. MolluscaBase eds. (2024). MolluscaBase. Alvania akibai (Yokoyama, 1926). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=759691 on 2024-01-16

Description

The length of the shell attains 3 mm, its diameter 2.3 mm.

Distribution

This species occurs in the

Sea of Japan The Sea of Japan is the marginal sea between the Japanese archipelago, Sakhalin, the Korean Peninsula, and the mainland of the Russian Far East. The Japanese archipelago separates the sea from the Pacific Ocean. Like the Mediterranean Sea, it ...

References

* Hasegawa K. (2014) A review of bathyal Rissoidae in the Sea of Japan and adjacent waters (Gastropoda: Rissooidea). In: T. Fujita (ed.), Deep-sea fauna of the Sea of Japan. National Museum of Nature and Science Monographs 44: 75–148. * Hasegawa, K. (2022). Bathyal Rissoidae (Gastropoda: Rissooidea) off the Russian Far East coast of the Sea of Japan, with redescription of Punctulum reticulatum Golikov, 1986. Ruthenica. 32(2): 85–92.

External links

Yokoyama M. (1926). Fossil shells from Sado. Journal of the Faculty of Science, Imperial University of Tokyo. Section II, Geology, Mineralogy, Geography, Seismology. 1(8): 249–312, pls. 32–37
akibai Gastropods described in 1926 {{Rissoidae-stub