(Hymeniacidon) (Hymeniacidon) is a biological genus in the family Halichondriidae and order Halichondrida.
Hymeniacidon assimilis
Hymeniacidon caruncula
Hymeniacidon heliophila
Hymeniacidon perleve
Hymeniacidon sanguinea
Hymeniacidon sinapium
Hymeniacidon ungodon
Amorphinopsis
Axinyssa
Ciocalapata
Ciocalypta
Epipolasis
Halichondria
Hymeniacidon
Laminospongia
Leucophloeus
Pellina
Spongosorites
Tedanione
Topsentia
Vosmaeria