Majidae Samouelle, 1819
Macrocoeloma camptocerum (Stimpson, 1871)
Macrocoeloma concavum Miers, 1886
Macrocoeloma diplacanthum (Stimpson, 1860)
Macrocoeloma eutheca (Stimpson, 1871)
Macrocoeloma heptacanthum (Bell, 1835)
Macrocoeloma intermedium Rathbun, 1901
Macrocoeloma laevigatum (Stimpson, 1860)
Macrocoeloma maccullochae Garth, 1940
Macrocoeloma nodipes (Desbonne, in Desbonne & Schramm, 1867)
Macrocoeloma septemspinosum (Stimpson, 1871)
Macrocoeloma subparallelum (Stimpson, 1860)
Macrocoeloma subparellelum (Stimpson, 1860)
Macrocoeloma trigona (Dana, 1852)
Macrocoeloma trispinosum (Latreille, 1825)
Macrocoeloma villosum (Bell, 1835)
