Acanthocyclops robustus

Systematics :

Kingdom: Animals (Animalia)
Phylum: Articulate animals (Arthropoda)
Subphylum: Crustacea
Class: Copepoda
Order: Cyclopoida
Family: Cyclopidae
Genus: Acanthocyclops
Species: Acanthocyclops robustus

Confusion species: Acanthocyclops vernalis