Bicolor Fangblenny (Plagiotremus laudandus) イナセギンポ
The Bicolor Fangblenny like many fangblennies likes to eat other fish one bite at a time. It may not have venom in its fangs but it looks much like the Yellowtail Fangblenny which does. Sometimes looking mean is all it takes.
Unlike the Yellowtail Fangblenny it doesn’t have the black line from its eye. It does have a black edge on the forward part of its dorsal fin.