Von Koenigswald (1957a) established the genus Hemianthropus for isolated teeth recovered from Hong Kong apothocaries. Later, in a short note, von Koenigswald (1957b) indicated that the genus name as initally proposed (with an "i") is occupied by Hemianthropus Freudenberg, 1929 for the Bammental II material discovered at the site of Bammental (near Mauer), and so von Koenigswald (1957b) proposed changing the name to Hemanthropus (without an "i").
Campbell (1965) remarks that such changes are allowed under the ICZN, however the original taxonomic description lacked characters differentiating the taxon and is thus nomen nudum. The original publication does include a brief differential diagnosis and if we accept that a single diagnosis may server for the species and genus designations then the name is available.
Smith et al. (2018) concluded that the type specimen, CA 673, is likely a representative of Pongo.
