Sphaeromatidea

Ancinidae is a family of isopods belonging to the suborder Sphaeromatidea.

Serolidae is a family of isopod crustaceans. The family encompasses 22 genera with 109 species. These species are exclusively marine and are distributed across the marine realms as follows: one species can be found in the Temperate Northern Atlantic, one species in the Temperate Northern Pacific, seven species in the Tropical Atlantic, six species in the Central Indo-Pacific, 16 species in Temperate South America, one species in Temperate Southern Africa, 20 species in Temperate Australasia, and 31 species in the Southern Ocean.

Bathynataliidae is a family of crustaceans belonging to the order Isopoda.

species of isopod

Sphaeromatidea is a suborder of isopod crustaceans.

Plakarthrium is a genus of isopods belonging to the monotypic family Plakarthriidae.

Seroloidea is a superfamily of isopod crustaceans in the suborder Sphaeromatidea.