Gymnoscopelus piabilis
Encyclopedia
Gymnoscopelus piabilis is a lanternfish
Lanternfish
Cooper Lanternfishes are small mesopelagic fish of the large family Myctophidae. One of two families in the order Myctophiformes, the Myctophidae are represented by 246 species in 33 genera, and are found in oceans worldwide. They are aptly named after their conspicuous use of bioluminescence...

 in the family Myctophidae, found circumglobally in the southern hemisphere between about 46° S and 52° S, at depths of below 100 at night. Its length is about 15 cm. It is a mesopelagic
Mesopelagic
The mesopelagic is that part of the pelagic zone that extends from a depth of 200 to 1000 metres below the ocean surface. It lies between the photic epipelagic above and the aphotic bathypelagic below, where there is no light at all...

 and benthopelagic species.
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