Neilonella striolata (Brugnone, 1876) sensu Warén, 1989 accepted as
Neilonella latior (Jeffreys, 1876) accepted as
Pseudoneilonella latior (Jeffreys, 1876) (basis of record)
Portlandia lenticula var. arctica Mesyatsev, 1931 accepted as
Yoldiella lenticula (Møller, 1842) (additional source)
Portlandia lenticula var. polaris Mesyatsev, 1931 accepted as
Yoldiella lenticula (Møller, 1842) (basis of record)
Portlandia subaequilatera (Jeffreys, 1879) sensu Ockelmann, 1959 accepted as
Yoldiella propinqua (Leche, 1878) (source of synonymy)
Yoldiella frigida mediterranea F. Nordsieck, 1974 accepted as
Yoldiella philippiana (Nyst, 1845) (source of synonymy)
Yoldiella obesa (W. Stimpson, 1851) accepted as
Yoldiella lucida (Lovén, 1846) (additional source)
Yoldiella semistriata (Jeffreys, 1879) (new combination reference)
Yoldiella solidula Warén, 1989 (original description)