Children (29 direct children, 29 direct and indirect children):
Helobdella robusta
Helobdella nigropunctata
Helobdella stagnalis
Helobdella triserialis
Helobdella fusca
Helobdella conchata
Helobdella punctatolineata
Helobdella papillata
Helobdella adiastola
Helobdella transversa
Helobdella moorei
Helobdella californica
Helobdella european
Helobdella nuda
Helobdella zhuhaina
Helobdella europaea
Helobdella atli
Helobdella bowermani
Helobdella melananus
Helobdella nahuelhuapensis
Helobdella nilae
Helobdella nununununojensis
Helobdella octatestisaca
Helobdella ringueleti
Helobdella sorojchi
Helobdella papillornata
Helobdella elongata
Helobdella blinni
Helobdella modesta