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Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Epitheliozoa
Eumetazoa
Bilateria
Nephrozoa (Eubilateria)
Protostome (Protostomia)
Ecdysozoa (Ecdysozoan)
Panarthropoda
Tactopoda
Arthropoda (Arthropod)
Chelicerata (Chelicerates)
Euchelicerata
Prosomapoda
Merostomata (Horseshoe crabs)
Xiphosura
Xiphosurida
Planaterga
Dekatriata
Sclerophorata
Arachnida (Arachnids)
Acari (Acarina)
Acariformes (Mites and ticks)
Trombidiformes
Prostigmata (Prostigs)
Anystina
Parasitengona
Hydrachnidiae (Hydracarina)
Hydrachna

Diplohydrachna (50740019)

Children (8 direct children, 8 direct and indirect children):

Hydrachna aspratilis

Hydrachna cronebergi

Hydrachna distincta

Hydrachna georgei

Hydrachna goldfeldi

Hydrachna hormuzakii

Hydrachna rubicunda

Hydrachna uniscutata