''Protomyctophum subparallelum'' is a

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

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 language, 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 ...

species.

References

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