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On a new finding of Euciroa arenosa (Rayneval in Appelius, 1871) for the Lower Pliocene of the Mediterranean Basin (Mollusca Bivalvia Euciroidae)

Received 24.09.2021; accepted 09.12.2021; published online 30.12.2021 We report the discovery of a valve of Euciroa arenosa (Rayneval in Appelius, 1871) in the Spanish lower Pliocene, species rarely reported and even less depicted previously in the Italian Pliocene. The family Euriciroidae Dall, 1895 is briefly mentioned. The image of the type species, E. elegantissima Dall, 1881, is shown.