Naseka, A. M., Tuniyev, S. B. and Renaud, C. B. (2009) “Lethenteron ninae, a new nonparasitic lamprey species from the north-eastern Black Sea basin (Petromyzontiformes: Petromyzontidae)”, Zootaxa. Auckland, New Zealand, 2198(1), pp. 16–26. doi: 10.11646/zootaxa.2198.1.2.