giant moray; Gymnothorax javanicus
A large species of moray eel found in the Indo-Pacific, known for its size and sometimes aggressive behavior. The name ドクウツボ (poison moray) is a common name, though it is not venomous; ciguatera poisoning from consumption is possible.
I saw a large giant moray while diving.
Kanji spelling using 鱓 (moray eel); rarely encountered outside of scientific or literary texts.
Compound of 毒 (doku, 'poison') and ウツボ (utsubo, 'moray eel'). The name likely refers to the risk of ciguatera poisoning from eating this species, rather than any venomous bite.