Bluespotted Boxfish (Ostracion immaculatum) ハコフグ – Japanese Boxfish – Blackspotted boxfish – size 25cm
The male Bluespotted Boxfish has a blue back. This one will get darker and larger. Enoshima 2018
The female Bluespotted Boxfish has a lighter back. Enoshima 2015
A young male Bluespotted Boxfish. Enoshima 2008
A juvenile Bluespotted Boxfish has blue spots. Even younger ones are yellow with black spots. Later they have balck and blue spots. eventually the spots there are blue spots with tiny black spots. This fish is sometimes called Ostracion immaculatus which is incorrect. Enoshima 2008