Related how?

Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Epitheliozoa
Eumetazoa
Bilateria
Nephrozoa (Eubilateria)
Protostome (Protostomia)
Spiralia (Spiralians)
Lophotrochozoa
Annelida (Annelid)
Clitellata
Rhynchobdellida
Piscicolidae

Johanssonia (18518967)

Children (4 direct children, 4 direct and indirect children):

Johanssonia arctica

Johanssonia kolaensis

Johanssonia pantopodium

Johanssonia extrema