Apus (bird)
Before the 1950s, scientists disagreed about which animals should have the name Apus. In 1801, Bosc gave the small crustacean animals that we call Triops today the genus name Apus, and later writers continued to use it for them. In 1909, Keilhack said this was incorrect because there was already a group of birds called Apus. It was not until 1958 that the scientists in the International Commission on Zoological Nomenclature (ICZN) decided to use the name for only birds.