Harlequin Snake Eel (Myrichthys colubrinus) シマウミヘビ (size 97cm) also Banded or Ringed Snake Eel
The Harlequin Snake Eel looks much like a sea snake but it is an eel. I thought that this one was a sea snake until I got closer to it. It was also acting like a sea snake without the going up for air bit. Amami 2025
The Harlequin Snake Eel has nostrils that pint down. Amami 2025
The Harlequin Snake Eel also has a dorsal fin and no scales. Amami 2025