Pholidichthys leucotaenia Pholidichthys leucotaenia Pholidichthys leucotaenia, commonly known as the convict blenny/goby or the engineer blenny/goby, is a marine fish from the west-central Pacific Ocean. It is neither a blenny nor a goby, but is in fact one of two species in the family Pholidichthyidae. A small eel-shaped fish, it can grow up to in length. Juveniles resemble the striped catfish "Plotosus lineatus", which is venomous, having a black body with a white dorsal stripe. As they develop, the stripe changes to white convict-style barring or spotting in the adult. It lives in shallow lagoons and on coastal reefs from the Philippines
Bucchich's goby Bucchich's goby Bucchich's goby ("Gobius bucchichi") is a species of goby native to the Eastern Mediterranean Sea and perhaps the Black Sea. It has traditionally been considered to be more widespread, but in 2016 the similar incognito goby ("G. incognitus") was described. It had been confused with the Bucchich's goby and much information formerly published for this species is now considered to actually be for the incognito goby. The Bucchich's goby prefers coastal waters with a sandy or muddy substrate with seagrass patches or tide pools at depths of from . Its diet consists of polychaete worms, amphipods, molluscs and