ABSTRACT
The whipworm Trichuris muris was recovered from the caecum of the wild rodent Psammomys obessus trapped from Sinai Peninsula, Egypt. The cuticular surface ultrastructure is described using SEM. T. muris is closely related to other Trichuris species but can be distinguished from them mainly by differences in the posterior end of males. Details of the surface such as the bacillary gland, cuticular inflations and several morphological details obtained by scanning electron microscopy confirmed the characteristics that differentiate the species. P. obessus (Cretzschmar, 1828) is considered a new host record and Sinai is considered a new locality for the genus. This may through light on the spread of T. muris between Asia and Africa.
Subject(s)
Gerbillinae/parasitology , Intestinal Diseases, Parasitic/veterinary , Rodent Diseases/parasitology , Trichuriasis/veterinary , Trichuris/ultrastructure , Animals , Cecum/parasitology , Egypt , Female , Intestinal Diseases, Parasitic/parasitology , Male , Microscopy, Electron, Scanning/veterinary , Trichuriasis/parasitology , Trichuris/classificationABSTRACT
Several digenetic trematode flukes belonging to the family Paramphistomidae were recovered from a cow slaughtered at Taif abattoir KSA. Parasites were identified as Calicophoron microbothrium (Family Paramphistomidae) .The surface tegumental structures and the anatomical details of the flukes were studied by making sagittal hand sections in the fluke and observations were made by scanning electron microscopy, which is a very useful technique in case of paramphistomes. This included the description of tegumental surface of the fluke, mouth opening and pharynx, acetabulum, genital atrium, caecum and eggs. Adult C. microbothrium is described for the first time using SEM from Saudi Arabia.
