Among the turtle and whale barnacles (Coronuloidea: Chelonibiidae, Coronulidae, †Emersoni-idae Platylepadidae), members of chelonibiid species Chelonibia testudinaria (Linnaeus, 1758) are known as epizoic that can attach to a rather wide spectrum substrates (pri-marily sea turtles, crabs sirenians). At present, three living morphs C. have been recognised; these, less host-specific is patula mor...