Sergio Hanquet / Glasseye snapper (Heteropriacanthus cruentatus) Tenerife, Canary Islands.

Sergio Hanquet / Glasseye snapper (Heteropriacanthus cruentatus), headshot. Tenerife, Canary Islands.

Sergio Hanquet / Glasseye snapper (Heteropriacanthus cruentatus) portrait. Tenerife, Canary Islands.

Claudio Contreras / Glasseye Snapper (Heteropriacanthus cruentatus), San Benedicto Island, Revillagigedo Archipelago Biosphere Reserve (Socorro Islands), Pacific Ocean, Western Mexico, March

Sergio Hanquet / African striped grunt (Parapristipoma octolineatum) shoal swimming under rock with a Glasseye Snapper (Heteropriacanthus cruentatus) amongst them , Tenerife, Canary Islands, Atlantic Ocean.

Sergio Hanquet / Glasseye snapper (Heteropriacanthus cruentatus) shoal swimming under rock, Tenerife, Canary Islands, Atlantic Ocean.

Sergio Hanquet / Glasseye snapper (Heteropriacanthus cruentatus), Tenerife, Canary Islands, Atlantic Ocean.

Doug Perrine / Common bigeye (Heteropriacanthus cruentatus) red colour morph, portrait, South Kona, Hawaii, Pacific Ocean.

Doug Perrine / Common bigeye (Heteropriacanthus cruentatus) red colour morph, portrait, South Kona, Hawaii, Pacific Ocean.

Pascal Kobeh / Bigeye snapper (Heteropriacanthus cruentatus) swimming on the reef, Sea of Cortez, Baja California, Mexico.

David Fleetham / Glasseye snapper (Heteropriacanthus cruentatus) in a cavern during the day, Hawaii.

Sergio Hanquet / Catalufa (Heteropriacanthus cruentatus), Tenerife, Canary Islands.