ⓘ Category:Fauna of Iceland

Crangonyx islandicus

Crangonyx islandicus is a species of groundwater amphipods, endemic to Iceland, which was described in 2006. This species lives in freshwater beneath recent lava fields and is relatively widespread in the geologically youngest parts of Iceland. Morphological data, species distribution, genetic diversity and population structure suggest that this species survived repeated glaciation periods in Iceland in sub-glacial refugia. Considering that this species is most closely related genetically to Crangonyx species from North America, the ancestor of C. islandicus might have colonized Iceland vi ...


Crymostygius thingvallensis is a species of subterranean amphipod crustacean, endemic to the area around Þingvallavatn, a lake in southwestern Iceland. The species has no close relatives, and is placed in its own family, Crymostygidae. This distinctness has been confirmed by molecular phylogenetics.