Path

root
cellular organisms
eukaryota
opisthokonta
metazoa
eumetazoa
bilateria
coelomata
protostomia
lophotrochozoa
mollusca
gastropoda
heterobranchia
euthyneura
euopisthobranchia
cephalaspidea
philinoidea
gastropteridae
siphopteron
siphopteron quadrispinosum