Alticus monochrus is a species of combtooth blenny (family Blenniidae) in the genus Alticus.

It is a tropical blenny found in the western Indian Ocean including the Comoros Mozambique, Madagascar, the Seychelles and the Mascarene Islands.

[1] It can reach a maximum total length of 10 centimetres (3.94 inches).

[4][5] The blennies feed primarily off of benthic algae.

This Blenniidae article is a stub.