From: First record of a Galapagos fur seal (Arctocephalus galapagoensis) in Guatemala
| Orden | Family | Species |
|---|---|---|
| Sirenia: | Trichechidae | Trichechus manatus |
| Cetacea: | Balaenopteridae | Balaenoptera edeni |
| Balaenoptera musculus | ||
| Megaptera novaeangliae | ||
| Delphinidae | Delphinus delphis | |
| Feresa attenuata | ||
| Globicephala macrorhynchus | ||
| Grampus griseus | ||
| Orcinus orca | ||
| Pseudorca crassidens | ||
| Stenella attenuata | ||
| Stenella longirostris | ||
| Steno bredanensis | ||
| Tursiops truncatus | ||
| Kogiidae | Kogia sima | |
| Physteridae | Physeter macrocephalus | |
| Ziphidae | Mesoplodon peruvianus | |
| Ziphius cavirostris |