ARMS Taxon list
Megayoldia thraciaeformis (Storer, 1838)
Portlandia aestuariorum (Mosevich, 1928)
Portlandia arctica (Gray, 1824)
Portlandia frigida (Torell, 1859) accepted as Yoldiella frigida (Torell, 1859)
Portlandia intermedia (M. Sars, 1865) accepted as Yoldiella intermedia (M. Sars, 1865)
Portlandia siliqua (A. Adams, 1856) (uncertain > taxon inquirendum )
Yoldia aeolica (Valenciennes, 1846)
Yoldia amygdalea (Valenciennes, 1846) accepted as Yoldia hyperborea (A. Gould, 1841)
Yoldia hyperborea (A. Gould, 1841)
Yoldia myalis (Couthouy, 1838)
Yoldia scissurata Dall, 1897 accepted as Yoldia aeolica (Valenciennes, 1846)
Yoldia seminuda Dall, 1871 accepted as Yoldia aeolica (Valenciennes, 1846)
Yoldiella annenkovae (Gorbunov, 1946)
Yoldiella frami Knudsen, 1985
Yoldiella frigida (Torell, 1859)
Yoldiella intermedia (M. Sars, 1865)
Yoldiella lenticula (Møller, 1842)
Yoldiella lucida (Lovén, 1846)
Yoldiella nana (M. Sars, 1865)
Yoldiella philippiana (Nyst, 1845)
Yoldiella propinqua (Leche, 1878)
Yoldiella solidula Warén, 1989
Yoldiella tamara (Gorbunov, 1946)