Tompot blenny inquisitive and are often seen by scuba divers. Tompots are usually a deep brown/orange, and are distinguished by a pair of lappets (tentacles) above the eyes and seven or more darker stripes along the body. It feeds on sea anemones or crustaceans. As most fish, tompots harbour several species of parasites, including the capillariid Nematode "Pseudocapillaria bainae". This parasite has been found in the intestine of specimens caught off Italy and Montenegro. Its biology is unknown. Tompot blenny The tompot blenny ("Parablennius gattorugine") is a medium-sized blenny growing to about , part of the large family of blennies that live
Sand goby rounded. In males, there is a conspicuous dark spot on the anterior dorsal fin and in both sexes there is a black patch on the caudal peduncle. The general colour is sandy brown with indistinct dark blotches and reticulations on the dorsal surface and dark striations on the pale fins. The colour of the male darkens during the breeding season and his fins become more coloured. The average size is about . The sand goby normally lives at greater depths than the common goby. It feeds on small invertebrates living on the seabed especially amphipods. It is well camouflaged and