NEW SPECIES OF PARASITIC TAPE WORM POSTGANGESIA ARMATA N. SP. IN THE EUROPEAN CATFISH SILURUS GLANIS L. ENDEMIC TIGRIS RIVER PASSING THROUGH AL- RASHIDIYA REGION, NINEVEH, IRAQ
Bushra H. Al- Niaeemi*, Sundus N. Al-Kallak and Mohammad H. Mikael
ABSTRACT
The current study dealt with re-description of parasitical tape worm Postgangesia hemispherous in European catfish Silurus glanis using the light and scanning electronic microscope. Scanning electronic microscope examination showed that the scolex of the tapeworm carries rostellum and suckers. The rostellum contains one ring of hooks. Because discovery of this feature (hooks ring), the current description is considered a new species of the genus tapeworm Postgangesia, and the former description "Postgangesia hemispherous" was considered an incomplete description (inqurinda species), so a new name for this
species is devised to be "Postgangesia armata n. sp.". The examination also showed clear pores in the middle of the rostellum. The suckers contained muscles inside and filiform triches at their outer edges, as well as the presence of tegumental folds between suckers and also at the bottom of them, and existence of spiniform triches covered scolex's tegument.
Keywords: Silurus glanis, Postgangesia armata, ultrastructure.
[Download Article]
[Download Certifiate]