Reginald Innes Pocock reviewed the nomenclature of felids in 1917 and classified the jungle cat group as part of the genus "Felis". In the 1930s, Pocock reviewed the jungle cat skins and skulls from British India and adjacent countries. Based mainly on differences in fur length and colour he subordinated the zoological specimens from Turkestan to Balochistan to "F. c. chaus", the Himalayan ones to "F. c. affinis", the ones from Cutch to Bengal under "F. c. kutas", and the tawnier ones from Burma under "F. c. fulvidina". He newly described six larger skins from Sind as "F. c. prateri", and skins with shorter coats from Sri Lanka and southern India as "F. c. kelaarti".