3 RARE AND LITTLE-KNOWN CRYPTOGONIMID DIGENEANS FROM THE SCIAENID FISH SCIAENA-UMBRA (L) IN THE WESTERN MEDITERRANEAN

Three species of cryptogonimid digeneans are redescribed from the gut of Sciaena umbra off Corsica. The systematics of the three species, Me tadena pauli (Vlassenko, 1931), Paracryptogonimus aloysiae (Stossich, 1885) n. comb. and Anoiktostoma coronatum (Wagener, 1852), are discuss ed. The latter two species, which have not been reported for more than 100 years, have previously been confused and synonymised with each ot her. P. aloysiae, which is transferred to Paracryptogonimus from Anoik tostoma, is restricted to the rectum, whereas A. coronatum prefers the pyloric caeca and anterior intestine.