Johann Friedrich Blumenbach - Study of The Chimpanzee

Study of The Chimpanzee

In his dissertation Blumenbach mentioned a name Simia troglodytes with a short description for the Common Chimpanzee. This dissertation was printed and appeared in September 1775, but only for internal use in the University of Göttingen and not for providing a public record. The public print of his dissertation appeared in 1776. Blumenbach knew that Linnaeus had already established a name Homo troglodytes for a badly known primate, and in 1779 he discussed this Linnean name and concluded correctly that Linnaeus had been dealing with two species, a human and an orangutan, none of them was a chimpanzee, and that by consequence the name Homo troglodytes could not be used. Blumenbach was one of the first scientists to understand the identities of the different species of primates, which were, excluding humans, orangutans and chimpanzees (gorillas were not known to Europeans at this time). In Opinion 1368 the ICZN Commission decided in 1985 that Blumenbach's view should be followed, and that his Simia troglodytes as published by Blumenbach in 1779 shall be the type species of the genus Pan and, since it was the oldest available name for the Common Chimpanzee, be used for this species. However, the Commission did not know that Blumenbach had already mentioned this name in his dissertation. Following the rules of the ICZN Code the scientific name of one of the most well-known African animals, currently known as Pan troglodytes, must carry Blumenbach's name combined with the date 1776.