(Haplostoma) (Haplostoma) is a biological genus in the family Ascidicolidae and order Cyclopoida.
Haplostoma albicatum
Haplostoma ambiguum
Haplostoma dentatum
Haplostoma dudleyae
Haplostoma elegans
Haplostoma minutum
Haplostoma setiferum
Ascidicola
Botryllophilus
Enterocola
Enteropsis
Haplosaccus
Haplostoma
Haplostomella
Haplostomides
Schizoproctus