Blennie Trigloide

Found singly, during the day hiding in crevices and troughs in steep walls, coming out at night to feed over surge zones of rocky coastlines. They can remain out of water under rocks and seaweed as they are able to breath air.
Widespread Eastern Atlantic, Mediterranean, Sea of Marmara

Combtooth Blennies are the largest family of blennies, found in both tropical and subtropical waters and freshwater habitats as the name suggests they have comb like teeth lining their jaws, well suited for scraping food off hard surfaces!
Reef and rock blennies are usually territorial and have their own areas of rock pools which they skip and jump over, scraping algae from the surface of dead corals. Some male blennies have small harems of arguing females.
Males and females often have different colouring and features.