Acestus Leidy, 1851 (original description)
Anelcodiscus Leidy, 1851 (original description)
Arctodon Leidy, 1851 (original description)
Bdelloura Leidy, 1851 (original description)
Bernhardus Dana, 1851 accepted as Pagurus Fabricius, 1775 (original description)
Calcinus Dana, 1851 (original description)
Catesthia Leidy, 1851 accepted as Hydrolimax Haldeman, 1842 (original description)
Chaetodemus Leidy, 1851 (original description)
Cimoliasaurus Leidy, 1851 † (original description)
Cotylops Leidy, 1851 (original description)
Diogenes Dana, 1851 (original description)
Elasmodes Le Conte, 1851 (original description)
Eustomum Leidy, 1851 (original description)
Fabia Dana, 1851 (original description)
Glossostoma Le Conte, 1851 (original description)
Goniograpsus Dana, 1851 accepted as Pachygrapsus Randall, 1840 (original description)
Heloecius Dana, 1851 (original description)
Hemigrapsus Dana, 1851 (original description)
Hymenicus Dana, 1851 accepted as Halicarcinus White, 1846 (original description)
Myzobdella Leidy, 1851 (original description)
Oreodon Leidy, 1851 † (original description)
Phausis Leconte, 1851 (original description)
Polemius Leconte, 1851 (original description)
Priscodelphinus Leidy, 1851 † (original description)
Rhynchodemus Leidy, 1851 (original description)
Sarmatium Dana, 1851 (original description)
Stylemys Leidy, 1851 † (original description)
Synplecta Leidy, 1851 accepted as Hedruris Nitzsch in Ersch & Gruber, 1821 (original description)
Trypherus Leconte, 1851 (original description)
Tytthonyx Leconte, 1851 (original description)
Urnatella Leidy, 1852 (original description)