Metabetaeus is a genus of shrimp in the family Alpheidae, comprising four species: Metabetaeus lapillicola Yamashita, Komai & Kon, 2023 Metabetaeus lohena Banner & Banner, 1960 Metabetaeus mcphersonae Anker, 2010 Metabetaeus minutus (Whitelegge, 1897)

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