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7. Rediae of Echinostoma revolutum in Lymnaea natalensis 
A-C, young rediae; D, mother redia. 
8. Adults of Echinostoma revolutum recovered from ducks 
A, ventral view; B, ventral view of anterior end; C, side-view of cuticular spine; D, front-view of cuticular spines. 
9. Cere aria malayi V 
A, side view of xiphidocercaria ; B, ventral view of same; C, stylet. 
