Hoplostethus tenebricus is a small deep-sea fish species belonging to the slimehead family (Trachichthyidae).
It is found in the Western Indian Ocean (known only from Delagoa Bay, Mozambique).
The habitat of Hoplostethus tenebricus can be found in a marine environment within a deep-water range.
The average length of Hoplostethus tenebricus is about 21cm (08inches).[1]