Leptocollonia innocens (Thiele, 1912)
Leptocollonia thielei A. W. B. Powell, 1951
Moelleria costulata (Møller, 1842)
Moelleria drusiana Dall, 1919 accepted as Spiromoelleria quadrae (Dall, 1897)
Moelleria duplinensis Dall, 1892 † (uncertain > unassessed )
Moelleria duplinensis parva Mansfield, 1930 † (uncertain > unassessed )
Moelleria jansseni D. F. Hoeksema, Rijken & Simons, 2020 †
Moelleria laevigata Friele, 1876 accepted as Skenea trochoides (Friele, 1876)
Moelleria quadrae Dall, 1896 (unaccepted > nomen nudum )
Moelleria quadrae Dall, 1897 accepted as Spiromoelleria quadrae (Dall, 1897)
Molleria duplinensis Dall, 1892 † accepted as Moelleria duplinensis Dall, 1892 †
Molleria duplinensis parva Mansfield, 1930 † accepted as Moelleria duplinensis parva Mansfield, 1930 †
Spiromoelleria kachemakensis Baxter & J. H. McLean, 1984
Spiromoelleria maculata (A. N. Golikov & Gulbin, 1978)
Spiromoelleria quadrae (Dall, 1897)
Spiromoelleria umbilicata (A. N. Golikov & Gulbin, 1978)