Cymopolia floridana Rathbun, 1918 accepted as Palicus floridanus (Rathbun, 1918) (original description)
Dissodactylus alcocki Rathbun, 1918 accepted as Clypeasterophilus juvenilis (Bouvier, 1917) (original description)
Dissodactylus borradailei Rathbun, 1918 accepted as Dissodactylus primitivus Bouvier, 1917 (original description)
Dissodactylus calmani Rathbun, 1918 accepted as Clypeasterophilus rugatus (Bouvier, 1917) (original description)
Dissodactylus stebbingi Rathbun, 1918 accepted as Clypeasterophilus stebbingi (Rathbun, 1918) (original description)
Fabia canfieldi Rathbun, 1918 accepted as Enigmatheres canfieldi (Rathbun, 1918) (original description)
Parapinnixa beaufortensis Rathbun, 1918 (original description)
Parapinnixa bouvieri Rathbun, 1918 (original description)
Parapinnixa hendersoni Rathbun, 1918 (original description)
Pinnixa barnharti Rathbun, 1918 (original description)
Pinnixa faxoni Rathbun, 1918 accepted as Glassella faxoni (Rathbun, 1918) (original description)
Pinnixa floridana Rathbun, 1918 accepted as Glassella floridana (Rathbun, 1918) (original description)
Pinnixa franciscana Rathbun, 1918 accepted as Scleroplax franciscana (Rathbun, 1918) (original description)
Pinnixa hiatus Rathbun, 1918 (original description)
Pinnixa patagoniensis Rathbun, 1918 accepted as Austinixa patagoniensis (Rathbun, 1918) (original description)
Pinnixa retinens Rathbun, 1918 accepted as Pinnixulala retinens (Rathbun, 1918) (original description)
Pinnixa schmitti Rathbun, 1918 accepted as Scleroplax schmitti (Rathbun, 1918) (original description)
Pinnixa weymouthi Rathbun, 1918 (original description)
Pinnotheres hemphilli Rathbun, 1918 accepted as Fabia hemphilli (Rathbun, 1918) (original description)
Pinnotheres holmesi Rathbun, 1918 accepted as Zaops geddesi (Miers, 1880) (original description)
Pinnotheres moseri Rathbun, 1918 accepted as Tunicotheres moseri (Rathbun, 1918) (original description)
Pinnotheres muliniarum Rathbun, 1918 accepted as Juxtafabia muliniarum (Rathbun, 1918) (original description)
Pinnotheres orcutti Rathbun, 1918 accepted as Tumidotheres orcutti (Rathbun, 1918) (original description)
Pinnotheres reticulatus Rathbun, 1918 accepted as Juxtafabia muliniarum (Rathbun, 1918) (original description)
Pinnotheres shoemakeri Rathbun, 1918 (original description)
Pinnotheres taylori Rathbun, 1918 (original description)
Sesarma (Holometopus) magdalenense Rathbun, 1918 accepted as Armases magdalenense (Rathbun, 1918) (original description)
Sesarma (Holometopus) miersii iheringi Rathbun, 1918 accepted as Armases angustipes (Dana, 1852) (original description)
Tetragrapsus Rathbun, 1918 (original description)