Path
rootcellular organisms
eukaryota
opisthokonta
metazoa
eumetazoa
bilateria
coelomata
deuterostomia
echinodermata
eleutherozoa
echinozoa
echinoidea
euechinoidea
echinacea
echinoida
strongylocentrotidae
strongylocentrotus
strongylocentrotus polyacanthus