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Marr's Fusiler
(Pterocaesio marri)
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Masked Bannerfish
(Heniochus monoceros)
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Masked Goby
(Coryphopterus personatus)
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Masked Grouper, Juvenile
(Gracila albomarginata)
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Masked Pufferfish
(Arothron diadema)
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Masked Rabbitfish
(Siganus puellus)
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Masked Shrimp Goby
(Amblyeleotris gymnocephala)
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Masked Triggerfish
(Sufflamen fraenatum)
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Masuda's Hogfish
(Bodianus masudai)
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Masuda's Hogfish
(Bodianus masudai)
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Mauritian Clownfish
(Amphiprion ocellaris)
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Mauritius Mystery Wrasse
(Pseudocheilinus dispilus)
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Maze Toby Pufferfish
(Canthigaster rivulata)
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McCosker's Flasher Wrasse
(Paracheilinus mccoskeri)
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McCosker's Flasher Wrasse, Male
(Paracheilinus mccoskeri)
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McCullochi Clownfish
(Amphiprion mccullochi)
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Melanurus Wrasse, Female
(Halichoeres melanurus (female))
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Melanurus Wrasse, Male
(Halichoeres melanurus)
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Mertensii Butterflyfish
(Chaetodon mertensii)
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Meteor Cardinalfish
(Apogon selas)
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Midas Blenny
(Ecsenius midas)
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Midnight Ocellaris Clownfish
(Amphiprion ocellaris)
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Miles Lionfish
(Pterois miles)
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Millit Butterflyfish
(Chaetodon miliaris)
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Mimic Blenny
(Ecsenius gravieri)
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Mimic Half Black Tang
(Acanthurus chronixis)
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Mimic Saddle Puffer
(Paraluterus prionurus)
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Mini Dart Goby
(Aioliops megastigma)
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Misbar Black Ocellaris Clownfish
(Amphiprion ocellaris)
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Misbar Darwin Ocellaris Clownfish
(Amphiprion ocellaris)