Children (8 direct children, 9 direct and indirect children):
Streblospio benedicti
(tree size 1)
Streblospio gynobranchiata
Streblospio shrubsolii
Streblospio shrubsoli
Streblospio eridani
Streblospio eunateae
Streblospio japonica
Streblospio padventralis