Fig. 4

Morphology of D. giganteus and associated pathology in infected Indian halibut from Gulf of Saudi Arabia. A D. giganteus plerocercoid extracted from the blastocyst. B anterior end of the larval stage showing the bothridia (b): bulbous; (h): hooks). C and D protruded proboscis with hooks (h). E Anterior end stained with carmine showed bulbous (b) and hooks (h). F Histopathological section of infected muscles showing the capsular layer of the parasites (p) associated with pressure atrophy in muscles and degenerative changes in the adjacent surrounding muscles and scanty inflammatory cells of eosinophilic cells (e)