Caspian race is a term used in racial anthropology by some authors to describe a sub-race of the greater Caucasian race.The term is used by M. G. Abdushelishvili (1979) as constituting a branch of the Mediterranean race or Irano-Afghan race. In Soviet-era anthropology, the term was used to include Tats and Azerbaijanis. The phenotype has been said to be prevalent among the Azerbaijanis, Balochs, Kurds, Tats-Muslims. Kumyks and Tsakhurs.Genrietta Leonidovna Khit states that as a form of racial admixture the Caspian subtype is represented among Turkmens and Talyshs.