Monotypic. The Cambodian form ferrarius, formerly treated as a subspecies of White-necked Laughingthrush, is now considered a separate species Cambodian Laughingthrush Garrulax ferrarius following Collar, N. J. (2006) A partial revision of the Asian babblers (Timaliidae). Forktail 22: 85-112.
and Robson, C. (2000) A field guide to the birds of South-East Asia. London: New Holland.