The Tompot Blenny is a medium sized blenny, which lives in rocky areas in shallow water mainly in northwest Europe.

All true blennies have a continuous dorsal fin with the first dorsal fins are spiny and the remainder are soft. The pectoral finds are relatively large. Distinguished by a pair of tentacles/lappets over the eye. Usually a deep brown-orange in colour. Rarely more than 15 cm in length.