ECHINOSTOMA-ECHINATUM (ZEDER 1803) SENSU KANEV (DIGENEA, ECHINOSTOMATIDAE) - A NOTE OF CAUTION

The re-examination of the voucher specimens identified by Kanev er al. (1987) as E. echinatum (Zeder, 1803) showed that two distinct species have been considered as E. echinatum: E. sarcinum Dietz, 1909, posses sing 47 collar spines [Lymnaea truncatula strain - set 'L' (No. 326 TB )] and Echinostoma sp. (?echinatum) with 37 collar spines [Planorbis p lanorbis strain - set 'P' (No. 327 TB)]. The material of E. sarcinum i s described and differentiated from E. revolutum and E. echinatum (sen su Kanev, 1985). The present results suggest that species identity of the material described as E. echinatum in Kanev's (1985) experimental study requires further clarification.