Light and scanning electron microscopy of Dipartiella simplex (Raabe, 1959) stein, 1961 infesting common sole (Solea vulgaris) and goby fish (Gobius sp.) in Lake Qarun, Egypt, with a new character to the genus

Abstract

Dipartiella simplex (Raabe, 1959) Stein, 1961 was observed on the gills of Solea vulgaris and Gobius sp. from Lake Qarun, Egypt. The trichodinid prevailed on the new host S. vulgaris all the year with high intensity during winter. Comparison with the original description revealed that the present trichodinid morphometry coincides with the minimal ranges of the original population and might be attributed to the new host and habitat. Scanning electron observations showed firm junctions of denticles through the fairly developed central parts. A new described character of this genus was clearly visible in the ray structure. Rays were semi-squared in form and ended with vermiform thin projections that were folded at right angles underneath the semi-square parts. The study provides a possible explanation for the present new locality and host in the saline inland lake of Qarun.

Publication Title

Acta Protozoologica

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