It includes a number of
oceanic islands and oceanic island groups like the
Galápagos Islands,
Revillagigedo Islands,
Cocos Island, and
Clipperton Island. Clipperton has been labelled as a meeting point between the
Oceanian realm and the Tropical Eastern Pacific realm.[2] The Galápagos Islands are also believed to have much higher percentages of Indo-West Pacific species in their marine faunas when compared to the continental American coasts.[3][4] A 2018 study revealed interconnectivity of species between the
Line Islands,
Hawaii and Clipperton, as well as interconnectivity between the Galápagos Islands and
Marquesas Islands in
French Polynesia.[5] The study identified the Northern Galápagos Islands as a "critical stepping-stone connecting the Central Pacific and Eastern Pacific."[5]