• Kingdom: Animalia
  • Phylum: Arthropoda
  • Subphylum: Crustacea
  • Class: Malacostraca
  • Subclass: Eumalacostraca
  • Superorder: Peracarida
  • Order: Amphipoda
  • Suborder: Gammaridea
  • Family: Gammaridae
  • Scientific name: Gammarus locusta
  • Norwegian: tangloppe


The body length may reach more than 3 cm. It has relatively large, black eyes. There is a red spot on the first three tail segments. The color is beige or greenish brown.


Extremely common in the low tidal zone. Lift a rock on a Norwegian beach, and you are very likely to encounter a myriad of these amphipods.


It is widespread in the North-East Atlantic Ocean, from Iceland and Norway to Portugal.