REVISION OF DIPLOSTOMUM SPATHACEUM (RUDOLPHI, 1819) AND D. PSEUDOSPATHACEUM NIEWIADOMSKA, 1984 (TREMATODA: DIPLOSTOMATIDAE) FROM THE FARM FISH CARP CYPR1NUS CARPIO | ||||
| Egyptian Journal of Aquatic Biology and Fisheries | ||||
| Article 20, Volume 1, Issue 2, June 1997, Page 347-357 | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejabf.1997.3394 | ||||
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| Author | ||||
| Mostafa El-Mmehlawy | ||||
| Zoology Department, Faculty of Science, Tanta University, Tanta, Egypt | ||||
| Abstract | ||||
| Diplostomum spathaceum (Rudolphi, 1819) and D. pseudospathaceum Niewiadomska, 1984 have been known for a long time under two different names. The above mentioned two species are revised in this article, on the basis of plenty of collected materials from fish farms in Kafr Elsheikh, Egypt. Variations of both fixed metacercariae (heat-fixed) and live ones were critically investigated on the basis of the morphologically and specific systematic organs. The monographic data and the available measurement ratio which were obtained revealed a high similarity for the fixed metacercariae. However, the comparison of the variations are not enough to separate them as two distinct species. Consequently, D. pseudospathaceum could be recognized as a synonym for the D. spathaceum. | ||||
| Keywords | ||||
| Trematoda; Diplostomatidae; Cyprinus carpio | ||||
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