| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Armases benedicti (Rathbun, 1897) |
Fatfinger marsh crab | Western Atlantic Ocean | |
| Armases cinereum (Bosc, 1802) |
Squareback marsh crab | Western Atlantic Ocean | |
| Armases miersii (Rathbun, 1897) |
Western Central Atlantic | ||
| Armases ricordi (Milne-Edwards, 1853) |
Humic marsh crab | Western Atlantic | |
| Armases rubripes (Rathbun, 1897) |
Southwest Atlantic |