Bivalvia | Sphaeriida | Sphaerioidea | Sphaeriidae | Sphaeriinae | Euglesa
Sterki, 1895. Nautilus 8(9): 97.
Pisidium walkeri — Herrington (1962), Turgeon et al. (1998), Bogan (2010), ITIS (2012), Combosch et al. (2017), Saito et al. (2022)
Pisidium (Cyclocalyx) walkeri (s. str.) — Clarke (1973)
Pisidium (Cyclocalyx) walkeri — Burch (1975), Mackie (2007)
Pisidium walkeri f. walkeri — Mackie et al. (1980)
Euglesa (Casertiana) walkeri — Bespalaya et al. (2023)
Sterki, 1898. Nautilus 12(7): 79.
Sterki, 1903. Nautilus 17(2): ??.
(intro'd as intra-sp. of Pisidium walkeri Sterki, 1895)
Pisidium walkeri — Herrington (1962)
Pisidium (Cyclocalyx) walkeri form mainense — Clarke (1973)
Pisidium (Cyclocalyx) walkeri — Burch (1975), Mackie (2007)
Pisidium walkeri f. mainense — Mackie et al. (1980)
Pisidium walkeri — Herrington (1962), Turgeon et al. (1998), Bogan (2010), ITIS (2012), Combosch et al. (2017), Saito et al. (2022)
Pisidium (Cyclocalyx) walkeri (s. str.) — Clarke (1973)
Pisidium (Cyclocalyx) walkeri form mainense — Clarke (1973)
Pisidium (Cyclocalyx) walkeri — Burch (1975), Mackie (2007)
Pisidium walkeri f. walkeri — Mackie et al. (1980)
Pisidium walkeri f. mainense — Mackie et al. (1980)
Euglesa (Casertiana) walkeri — Bespalaya et al. (2023)