ON THE TYPES OF DUJARDINS SPECIES OF THE GENUS BRACHYLECITHUM (TREMATODA, DICROCOELIIDAE) WITH A SUGGESTION TO SELECT THE NEOTYPE OF B-ATTENUATUM

Data on the original materials of the ''oldest'' species of the genus Brachylecithum Strom, 1940 indicate that type-specimens of Brachylecit hum filum (Dujardin, 1845) and B. attenuatum (Dujardin, 1845) are now non-existent. For stabilization of the nomenclature, it is suggested t o revise the genus and from the existing dicrococliids select as the n eotype of B. attenuatum the specimen deposited at the Museum national d'Histoire naturelle in Paris labelled MNHN, Paris, 480 HF, slide Tg. 90.