UNDER CONSTRUCTION
This province covers the following ecoregions:
| Ecoregion | Faunistic works |
|---|---|
| Revillagigedos | Emerson, 1995. |
| Clipperton | No Olivoidea recorded from this ecoregion. |
| Mexican Tropical Pacific | |
| Chiapas–Nicaragua | |
| Nicoya | Hemmen, 1981 (Costa Rica). |
| Cocos Islands | Sibaja-Cordero, García-Méndez & Troncoso, 2013; Tan & Low, 2014. |
| Panama Bight | Li, 1930 (Panama Bay); Hertlein & Strong, 1955 (Panama, Colombia). |
| Guayaquil | Hertlein & Strong, 1955 (Ecuador). |
Taxonomic name: