''Protomyctophum subparallelum'' is a

lanternfish Lanternfishes (or myctophids, from the Greek μυκτήρ ''myktḗr'', "nose" and ''ophis'', "serpent") are small mesopelagic fish of the large family Myctophidae. One of two families in the order Myctophiformes, the Myctophidae are represented ...

in the family Myctophidae, found circumglobally in the southern hemisphere south of about 30° S, in deep water. Its length is about 3.6 cm. It is a

mesopelagic The mesopelagic zone (Greek μέσον, middle), also known as the middle pelagic or twilight zone, is the part of the pelagic zone that lies between the photic epipelagic and the aphotic bathypelagic zones. It is defined by light, and begins a ...

species.

References

* Myctophidae Fish described in 1932 Taxa named by Åge Vedel Tåning {{Myctophiformes-stub