First redscription and a new host record of hysterothylcium sebae bruce, 1990 from the red sea fish scarus psittacus from egypt

Hysterothylacium sebae Bruce, 1990 [Nematodea: Raphidascadae] was collected from the small intestine of the marine fish Scarus psicattatus caught from Northern Red Sea, of Sharm El-Naga, Makady Bay, Sothern Hurgada, Red Sea Governorate. Out of eight examined fish, three [37.5%] were found naturally infected with H. sebae Bruce, 1990. The parasites [one adult male and eight females] were examined morphologically and morphometrically by light microscopy. According to the previouse literature, the present nematode parasite was never redescribed or reported from the marine fish Scarus psicattus. Therefore, Scarus psittacus is reported as a new host record for Hysterothylacium sebae Bruce, 1990 and re-described in details for the first time from Egypt

Scanning electron microscopical study of third instar of gasterophilus haemorrohidalis [diptera: gasterophilidae]

Third-stage larva of the bot-fly Gasterophilus haemorrohidalis obtained from the stomach of Egyptian equines were studied macroscopically and by light microscope; and for the first time by the scanning electron microscope with particular reference to the anterior cephalic region and the newly discovered sensory array of the mouth hooks. The design of that array was compared with that of larvae of Gasterophilus intestinalis and Gasterophilus nasalis and was found to be different mainly in the shape of the sensilla and the number of the angled plates and that these fine criteria may be used to differentiate other larvae. In addition, more detailed description was added to the cephalic and caudal regions which are of important taxonomic value. Gasterophiline larvae are of veterinary and medical importance, with some human creeping cutaneous myiasis, ophthalmomyiasis and one recent record of intestinal myiasis

Characteristics of hydatid cyst of camel strain of echinococcus granulosus in Assiut

100 camels were examined for hydatid cyst and revealed that the prevalence rate of cystic hydatidosis among camels in Assiut Govemorate was 9%. The lung was the most suitable place for cystic infection in camel than the liver. The fertility rate of the examined cysts was 80%. Hydatid cyst wall was better stained with PAS. Best carmine and Giemsa stains were very rapid effective methods for visualization of hydatid elements. Scanning electron microscope was used for the detection of ultrastructure features of hydatid sand. It revealed that camel strain has some specific characters including large sized rostellar hooks and presence of separation line between the scolex and the neck in the evaginated protoscolices. In top view the rostellum appeared to be formed of 3 successive concentric rings becoming smaller as they go upwards. This was shown for the first time in the present study. SDS PAGE was used for characterization of hydatid cyst fluid, protoscolices and laminated layer antigens separately. It revealed that protoscolices and laminated layer are the source of proteins in the hydatid fluid. Many protein bands ranged from 150-6 kD were detected by different stains. The pattern of these bands indicated that camel's hydatid cyst components differ from that of sheep and cattle