Description
This rather dark goby has a distinctive feature, it's red lips. With this it can not be confused with other cspecies. It hides in holes or cracks and is a highly territorial species. The spawning season is between March and November during which the male courts with several females. The females deposit the eggs in a single nest, that is being guarded by the male until they hatch.

Size
Grows up to 180 mm long.

Colour
Dark brown mottled with light patches.

Habitat
From the shallow sun tidal zone to 50 m on various substrate.

Distribution
Mediterranean sea, Black sea and eastern Atlantic ocean.