etymology The family consists of the genus Aplodactylus The name means either single finger or simple finger Greek haploos aploe daktylos Sourced to Fishbase depending on whether you look at Aplodactylidae or Aplodactylus punctatus Is anybody able to look at Cuvier and Valenciennes 1832 This is supposed to be the original source of the genus name and conceivably gives some insight as to where the name was meant to come from Primary sources aren t ideal but a self contradictory secondary source isn t better Presumably there is some defining and identifying property of the fish s fin which not only gives it the name but would more broadly also be worth mentioning in the article