''Portlandia'' is a genus of marine bivalve mollusks in the family Yoldiidae. They can be found in all the oceans. The genus includes '' Portlandia arctica'', the bivalve which gave its name – when it was still known as '' Yoldia arctica'' – to the Yoldia Sea.

Species

There are six recognized species:

References

Yoldiidae Bivalve genera Taxa named by Otto Andreas Lowson Mörch {{bivalve-stub