''Tucetona bicolor'' 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
dog cockle. Its shell is subtrigonal with 39 radial ribs. The ribs have with moderately shallow, very narrow interspaces, with very fine, very closely spaced commarginal ribs. The hinge plate is moderately wide and curved.
References
*
Glycymerididae
Bivalves described in 1843
{{bivalve-stub