Children (60 direct children, 62 direct and indirect children):
Ophelina norvegica
Ophelina breviata
Ophelina aulogastrella
Ophelina helgolandiae
Ophelina aulogaster
Ophelina abranchiata
Ophelina minima
Ophelina longicirrata
Ophelina helgolandica
Ophelina robusta
Ophelina alata
Ophelina acuminata
Ophelina ammotrypanella
Ophelina opisthobranchia
Ophelina longicaudata
Ophelina opisthobranchiata
Ophelina delapidans
(tree size 1)
Ophelina farallonensis
Ophelina kinbergi
Ophelina hachaensis
Ophelina modesta
Ophelina groenlandica
Ophelina cylindricaudata
(tree size 1)
Ophelina gaucha
Ophelina adamantea
Ophelina basicirra
Ophelina bowitzi
Ophelina brattegardi
Ophelina cyprophilia
Ophelina tessellata
Ophelina fauveli
Ophelina gigantea
Ophelina kampeni
Ophelina ehlersi
Ophelina grandis
Ophelina sibogae
Ophelina buitendijki
Ophelina bimensis
Ophelina cordiformis
Ophelina dubia
Ophelina brevibranchiata
Ophelina profunda
Ophelina pygocirrata
Ophelina remigera
Ophelina langii
Ophelina scaphigera
Ophelina nematoides
Ophelina setigera
Ophelina syringopyge
Ophelina gymnopyge
Ophelina chaetifera
Ophelina kohni
Ophelina manana
Ophelina curli
Ophelina ganae
Ophelina juhazi
Ophelina martinezarbizui
Ophelina meyerae
Ophelina nunnallyi
Ophelina cylindricaudatus