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| Order | Family | English Common Name | Spanish Common Name | Portuguese Common Name | Scientific Name | |
| 1 | Sessilia | Balanidae | Barnacle | Diente de Perro | Balanus glandula | |
| 2 | Amphipoda | Hyalellidae | Hyalella sp. | |||
| 3 | Decapoda | Grapsidae | Southwestern Atlantic | Cangrejo Granuloso | Neohelice granulata | |
| 4 | Ocypodidae | Fiddler Crab | Cangrejo Violinista | Leptuca uruguayensis | ||
| 5 | Platyxanthidae | Danielethus crenulatus | ||||
| 6 | Varunidae | Cangrejo de las Rocas | Cyrtograpsus angulatus | |||
| 7 | Isopoda | Armadillidiidae | Armadillidium nasatum | |||
| 8 | Pill-Bug | Bicho Bolita | Armadillidium vulgare | |||
| 9 | Porcellionidae | Porcellio scaber |