Species: homoteuthis titanus
Homoteuthis titanus (meaning: "man squid titanic"), commonly known as Titan Human Squid, is a speculative species of oegopsid cephalopod, that lived alongside with humans, and this wide range worldwide are includes both land and water.
References
https://www.deviantart.com/christopherbland/journal/Homoteuthis-titanus-1008064905
https://fiction-taxonomy.fandom.com/wiki/Homoteuthis_titanus