Gianius is a genus of annelids belonging to the family Naididae.
The species of this genus are found in Europe and Northern America.
Species:
Gianius anatolicus Gianius aquaedulcis Gianius cavealis Gianius cristolatus Gianius crypticus Gianius densespectinis Gianius eximius Gianius labouichensis Gianius monnioti Gianius navarroi Gianius riparius
References