Octopodal

The Arachnides or octopodal articulate animals, whose head, which is destitute of antennae, is confounded with the […]

Source: wiktionary

The metamorphoses of the parasite comprise three periods: larval, hexapodal, and octopodal.

Source: wiktionary

Why they may conclude that the time-destroying, space swallowing Nancy was—as Jacob Grimm called Odin's no less famous horse, Sleipnir—an octopod! And the disputing savants will have as hot a time of it about Nancy, […] being an octopodal reminiscence of tbe Miocene horse, just as we are to-day discussing the probability or improbability of Sleipnir, […]

Source: wiktionary

Rupert looked down at himself. "He doesn't go out like that." Edwyrd answered the octopodal demon on his bed. […] As it got closer she realized it was a very large bird with eight legs! "Shit! that's no bird, that's the goddess-cursed demon friend of Tom's that tried to subvert Rupert."

Source: wiktionary