Georgette Douwma / Taylor's pygmy leatherjacket (Brachaluteres taylori). Lembeh Strait, North Sulawesi, Indonesia.

Jurgen Freund / Close-up eye of Longtail filefish {Aluterus scriptus} Indo-Pacific

Alex Mustard / Eye and fin detail of a scrawled filefish (Aluterus scriptus) on a coral reef. Arborek Island, Raja Ampat, West Papua, Indonesia. Dampier Strait. Ceram Sea. Tropical West Pacific Ocean.

Alex Mustard / Slender filefish (Monacanthus tuckeri) hiding in the branches of a porous sea rod (Pseudoplexaura sp.) on a coral reef. Jardines de la Reina, Gardens of the Queen National Park, Cuba. Caribbean Sea.

Georgette Douwma / Shortsnout filefish (Paramonacanthus curtorhynchos). Lembeh Strait, North Sulawesi, Indonesia.

Magnus Lundgren / Filefish, (Monacanthidae) holding on to a jellyfish using the stinging cells of the jelly to protect itself. Balayan Bay, off Anilao, Batangas, Philippines, Pacific Ocean Minimum fees apply.

Magnus Lundgren / Filefish (Monacanthidae) holding on to a jellyfish using the stinging cells of the jelly to protect itself. Balayan Bay, off Anilao, Batangas, Philippines, Pacific Ocean. Minimum fees apply.

Shane Gross / Unicorn leatherjacket filefish (Aluterus monoceros) at night, The Bahamas. February.

David Fleetham / Longnose filefish (Oxymonacanthus longirostris) on a reef off the island of Yap, Micronesia.

Linda Pitkin / Taylor's inflator filefish (Brachaluteres taylori) Lembeh Strait, North Sulawesi, Indonesia.

Shane Gross / A Planehead filefish (Stephanolepis hispidus) takes shelter in a matt of sargassum in the Sargasso Sea, Atlantic Ocean, International Waters.

Shane Gross / A school of filefifsh take shelter and feed on invertebrates (bottom of frame) found on sargassum in the Sargasso Sea.

Georgette Douwma / Juvenile Mimic leatherjacket or Blacksaddle mimic (Paraluteres prionurus). Bali, Indonesia.

Georgette Douwma / Seagrass filefish (Acreichthys tomentosus), yellow phase. Tulamben, Bali, Indonesia.

Georgette Douwma / Seagrass filefish (Acreichthys tomentosus), yellow phase. Tulamben, Bali, Indonesia.

Sergio Hanquet / Scrawled filefish (Aluterus scriptus) above sea floor, several fish in background. El Hierro, Canary Islands.

Alex Mustard / Slender filefish (Monacanthus tuckeri) with red rope sponge on a coral reef. Grand Cayman, Cayman Islands, British West Indies. Caribbean Sea.

Pascal Kobeh / Blacksaddle filefish (Paraluteres prionurus) pair in courtship. Flores Sea, Indonesia.

Pascal Kobeh / Scribbled filefish (Aluterus scriptus) in coral reef. Flores Sea, Indonesia.

Magnus Lundgren / Wild Wonders of China / Scribbled filefish (Aluterus scriptus) Xiaoliuqiu Island, Taiwan

Pascal Kobeh / Japanese inflator filefish / Japanese inflator filefish (Brachaluteres ulvarum), Sulu sea, Philippines

Pascal Kobeh / Japanese inflator filefish / Japanese inflator filefish h (Brachaluteres ulvarum), Sulu sea, Philippines

Pascal Kobeh / Planehead / Common filefish (Stephanolepis hispidus), Canary Islands.

Georgette Douwma / Taylor's inflator filefish / Taylor's Pygmy Leatherjacket (Brachaluteres taylori) with a small amphipod, next to ascidian. West Papua, Indonesia. Indo-West Pacific.

Georgette Douwma / Seagrass filefish (Acreichthys tomentosus). Lembeh Strait, North Sulawesi, Indonesia.

Alex Mustard / Harlequin filefish (Oxymonacanthus halli) swimming over a hard coral looking for polyps to feed on. Gubal Island, Egypt. Strait Of Gubal, Gulf of Suez, Red Sea. Endemic.

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

Magnus Lundgren / Wild Wonders of China / Marbled rockfish (Sebastiscus marmoratus) camouflaged in coral, Ninepin Group or Kwo Chau Islands, Sai Kung District, Hong Kong, China.

Magnus Lundgren / Wild Wonders of China / Marbled rockfish (Sebastiscus marmoratus) Sharp Island, Hong Kong, China.

Magnus Lundgren / Wild Wonders of China / Marbled rockfish (Sebastiscus marmoratus) along the shore of Sai Kung East Country Park, Hong Kong, China.

Magnus Lundgren / Wild Wonders of China / Marbled rockfish (Sebastiscus marmoratus) close up of spines, along the shore of Sai Kung East Country Park, Hong Kong, China.

David Fleetham / Scrawled filefish (Aluterus scriptus), two in coral reef. Hawaii.

Georgette Douwma / Taylor's pygmy leatherjacket / Puffer filefish (Brachaluteres taylori) with soft coral. Ambon, Indonesia.

Georgette Douwma / Taylor's inflator filefish (Brachaluteres taylori) amongst soft coral polyps (Xenia sp.) Puerto Galera, Philippines.

Georgette Douwma / Radial filefish (Acreichthys radiatus) amongst soft coral polyps (Xenia sp.) Puerto Galera, Philippines.

Tony Wu / Threadsail filefish (Stephanolepis cirrhifer) at night. Toyama Prefecture, Honshu, Japan. March.

Tony Wu / Threadsail filefish (Stephanolepis cirrhifer) two latched on to rope twhile resting, Toyama Prefecture, Honshu, Japan. March.

Tony Wu / Hairfinned leatherjacket (Paramonacanthus japonicus), juvenile attended to by a multicolored Cleaner shrimp (Ancylomenes sp). Osezaki, Izu Peninsula, Shizuoka Prefecture, Japan. November.

Magnus Lundgren / Wild Wonders of China / Filefish (Monacanthidae) in Bohai Sea, Yellow Sea. Zhifu Island, Shandong Province, China.

Linda Pitkin / Whitespotted filefish (Cantherhines macrocerus) on coral reef Bonaire, Leeward Antilles, Caribbean.

Linda Pitkin / Scrawled filefish (Aluterus scriptus) shadowed by Trumpetfish (Aulostomus maculatus). Blue Tang (Acanthurus coeruleus) also in this mixed fish species feeding association. Bonaire, Leeward Antilles,...

Linda Pitkin / Scrawled filefish (Aluterus scriptus) amongst branches of gorgonian coral (Eunicea) Bonaire, Leeward Antilles, Caribbean.

David Fleetham / Hawaiian fantail filefish (Pervagor spilosoma) Maui, Hawaii. Endemic.

David Fleetham / Trumpetfish (Aulostomus chinensis)with Filefish (Monacanthidae) prey in mouth, Maui, Hawaii.

Claudio Contreras / Scrawled Filefish (Aluterus scriptus), Socorro Island, Revillagigedo Archipelago Biosphere Reserve (Socorro Islands), Pacific Ocean, Western Mexico, March

Claudio Contreras / Whitespotted Filefish (Cantherhines dumerilii), Socorro Island, Revillagigedo Archipelago Biosphere Reserve / Archipielago de Revillagigedo UNESCO Natural World Heritage Site (Socorro Islands), Pacifi...

Georgette Douwma / Radial filefish (Acreichthys radiatus). Lembeh Strait, North Sulawesi, Indonesia.

Tony Wu / Prickly Leatherjacket (Chaetodermis penicilligera) in Lembeh Strait, North Sulawesi, Indonesia