Genus Macroschisma G. B. Sowerby, 1839

(5-4-1-2-1-1-4-19-0-0-0-0-0)
Ref. Abbott & Dance, 1982 p 27
Lindner, 1977 p 33
Syn. Macroschisma J. L. R. Agassiz, 1846
Ref. Vaught, 1989 p 6