Crymostygius thingvallensis is a species of subterranean amphipod crustacean, endemic to the area around Þingvallavatn, a lake in southwestern Iceland.[1] The species has no close relatives, and is placed in its own family, Crymostygidae.[1] This distinctness has been confirmed by molecular phylogenetics.[2]
| Crymostygius thingvallensis | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Malacostraca |
| Order: | Amphipoda |
| Family: | Crymostygidae Kristjánsson & Svavarsson, 2004 |
| Genus: | Crymostygius Kristjánsson & Svavarsson, 2004 |
| Species: | C. thingvallensis |
| Binomial name | |
| Crymostygius thingvallensis Kristjánsson & Svavarsson, 2004 | |