G. Stein. [Key to the parasites of vertebrates in the Black and Azov Seas. Parasitic invertebrates of fish, fish-eating birds and marine mammals.] Greze, V.N.; Delyamure, S.L.; Nikolaeva, V.M.[Eds]. [Key to parasites of vertebrates in the Black and Azov Seas. Parasitic invertebrates of fish, fish eating birds and marine mammals.], Naukova Dumka, Kiev, 1975: 1-551. Chapter pagination: 1-551