Seison

Taxobox | name = "Seison"
regnum = Animalia
phylum = Rotifera
classis = Pararotatoria
classis_authority = Sudzuki, 1964
subclassis = Seisonacea
subclassis_authority = Wesenberg-Lund, 1899
familia = Seisonidae
familia_authority = Wesenberg-Lund, 1899
genus = "Seison"
genus_authority = Grube, 1859
subdivision_ranks = Species
subdivision = "Seison annulatus" "Seison nebaliae" "Seison africanus"

Seison is a genus of rotifer, found on the gills of "Nebalia", a marine crustacean. Peculiar among rotifers, males and females are both present and equal in size. It is considered to have diverged from the other rotifers early on, and is treated in a separate class, Pararotatoria.

References