Trematodes are parasitic flatworms of the class Trematoda, specifically parasitic flukes with two suckers: one ventral and the other oral. Trematodes are covered by a tegument, that protects the organ
Plectotropis vulgivaga
…gastropod mollusk in the family Camaenidae. Snails in this species create and use love darts as part of their mating behavior. The species can host sporocysts of Dicrocoelium Plectotropis vulgivaga lanx (Pilsbry, 1902…
Life cycle stages of a digenean fish parasite, Bucephalus polymorphus
Metacercariae of Clinostomum phalacrocoracis in fish