The Ariidae or ariid catfish are catfish that mainly live in marine waters with many freshwater and brackish water species. They're found worldwide in tropical to warm temperate zones. Ariid catfish have sometimes been called crucifix catfish thanks to a rather peculiar skeleton that resembles a crucifixion. Taxonomy The relationships of this family aren't yet clear. By some some sources, Doiichthys has previously been classified in its own family, Doiichthyidae. Two of the genera, Gogo and Anc… (More on Ariidae)