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Fig. 1 | Parasites & Vectors

Fig. 1

From: Massive infection of a song thrush by Mesocestoides sp. (Cestoda) tetrathyridia that genetically match acephalic metacestodes causing lethal peritoneal larval cestodiasis in domesticated mammals

Fig. 1

Tetrathyridia of Mesocestoides sp. found in the body cavity of Turdus philomelos in Czechia (iron acetocarmine, dimethyl phthalate, Canada balsam). ac Individuals demonstrating variations in size and shape of tetrathyridia. Note the invaginated scolex and neck (transformed into “anterior canal”) as well as the presence of posterior invagination in all individuals. d Anterior end of the individual presented in a. Note the curved “anterior canal” representing the scolex and the neck invaginated into the body of the metacestode. The apical part of the scolex bearing suckers is distinct at the bottom of the canal

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