Children (10 direct children, 11 direct and indirect children):
Heligosomoides polygyrus
(tree size 1)
Heligmosomoides polygyrus
Heligmosomoides thomomyos
Heligmosomoides corsicus
Heligmosomoides glareoli
Heligmosomoides hudsoni
Heligmosomoides kratochvili
Heligmosomoides laevis
Heligmosomoides tatricus
Heligmosomoides travassosi
Heligmosomoides yorkei