It belongs to the genus Microprotopus and family Microprotopidae.

Microprotopus maculatus approximately length is 3 mm.

This species lives between depth range from 0 to 70 meters and often on sandy bottoms.

[2] Microprotopus maculatus mainly found in the European waters such as North-East Atlantic, North Sea; particularity from Isefjord to the Adriatic.

Also, significant amount found in the North American waters, Mediterranean and Indian Ocean.