AbstractThe type species of the genusProlecanitesis discussed. The generic nameParaprolecanitesKarpinsky 1889 is invalid, being founded on a hypothetical suture line. Forms showing this type of suture line have since been found and the genusEpicaniteswas erected by Schindewolf 1926 to include such forms. A possible development fromProlecanites to Epicanitesis suggested.