''Circumstella biconcava'' is a

species In biology, a species is the basic unit of Taxonomy (biology), 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 ...

of 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 es ...

, 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 ...

Liotiidae.MolluscaBase (2018). ''Circumstella biconcava'' Feng, 1996. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=578845 on 2018-12-28Feng W.-M. eimin (1996). Microgastropods from Nansha sea area, China. In: Studies on marine fauna and flora and biogeography of the Nansha Islands and neighbouring waters II: 85-205.

References

Liotiidae Gastropods described in 1996 {{Liotiidae-stub