Georgette Douwma / Mimic leatherjacket (Paraluteres prionurus). North Sulawesi, Indonesia.

David Fleetham / Netted pufferfish / Spotted toby (Canthigaster solandri). Yap, Micronesia.

Pascal Kobeh / False / Mimic puffer / Blacksaddle filefish (Paraluteres prionurus) Sulu Sea, Philippines

Georgette Douwma / Mimic leatherjacket / Blacksaddle mimic OR Mimic filefish or False puffer (Paraluteres prionurus) showing 'file'. It mimics the poisonous Black saddle toby. West Papua, Indonesia.

Aflo / Black-Saddle leatherjacket (Paraluteres prionurus) in coral reef, Maldives, Indian Ocean. October.

Aflo / Black-Saddle leatherjacket (Paraluteres prionurus) in coral reef, Maldives, Indian Ocean. October.

Alex Mustard / Portrait of Papuan toby (Canthigaster papua) Bitung, North Sulawesi, Indonesia. Lembeh Strait, Molucca Sea.

Georgette Douwma / Papuan puffer (Canthigaster papua) with a cleaner shrimp (Periclemenes magnificus) Rinca, Komodo National Park, Indonesia.

Fred Bavendam / False-eyed Pufferfish (Canthigaster papua) amid coral, Solomon Islands

Chris Newbert / Mimic Filefish (Paraluteres prionurus) 30 feet deep, Papua New Guinea

Chris Newbert / Mimic Filefish (Paraluteres prionurus) 50 feet deep, Papua New Guinea

Tom Vierus / Three Mimic filefish (Paraluteres prionurus) hiding among a green unidentified sponge in the turbid waters adjacent to Suva Habrour, one of the busiest industrial ports in Fiji, Suva, Viti Levu, Fiji,...