Species of bivalve
Parvicardium hauniense is a species of mollusc, known as Copenhagen cockle. It is an endemic species to the Baltic Sea.[1][2]
The species was described in 1971 by G. Høpner Petersen and P. Russell. Its original scientific name was Cardium hauniense.[3]
They are around 5mm in size with an oblique oval shape and have a thin shell. They are found in the Baltic Sea.[4]
References