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4_arms 4_heads anthro aquatic bone canid canid_demon canine canis cephalopod cerberus coleoid demon dragon european_mythology greek_mythology hellhound horn line_art male mammal miralesss_(artist)mollusk monochrome multi_arm multi_head multi_limb mythological_canine mythological_creature mythological_scalie mythology nude octopodiform octopus scalie skull skull_head solo tail tentacles voruna wolf