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
Pacific leaping blenny members of "A. arnoldorum" are able to thrive on land due to their ability to twist their tails axially at 90 degrees, to propel their bodies. Hsieh noted that the twisting of the tail was a behaviourism unique to "A. arnoldorum" and species in the genus "Andamia"; the two genera were subsequently considered terrestrial. Pacific leaping blenny The Pacific leaping blenny ("Alticus arnoldorum"), also known as the leaping rockskipper, is a species of combtooth blenny (family Blenniidae) in the genus "Alticus". The blennies are oviparous, and form distinct pairs when mating. Males can reach a maximum total length of 8