Genus:
Hydrogamasellus >
Family:
Ologamasidae >
Superfamily:
Rhodacaroidea >
Infraorder:
Gamasina >
Suborder:
Monogynaspida >
Order:
Mesostigmata >
Superorder:
Parasitiformes >
Subclass:
Arachnida >
Phylum:
Arthropoda >
Kingdom:
Animalia >
Unranked:
Biota >