The primordial genital organs and oral sucker can be seen in a dorsal view of the body of a cercaria
Virgulate xiphidiocercariae is another type of cercaria
that was recovered from the lymnaeid snails (Figure 3: (3)-(4)).
Hugghins (1954) described the life cycle of Hysteromorpha triloba (Rudolphi, 1819) whose cercaria
is similar to Furcocercaria XIX in the morphology of the penetration gland cells, presence of three circles of spines surrounding the opening of the ventral sucker, number and position of sensory hairs on the body (one pair) and several pairs in the tail stem, resting position, size of the body (168-221/41-50 H.
Cercariae shedding infected snails were identified according to morphological characteristics (large size, swollen foot, appeared yellowish in colour, slow locomotion, shedding cercaria
appeared at the mouth of the snails, changed and shell morphology) as described by Largue et al.
Similar observations were recorded by  in the snail Archachatina marginata that the digestive gland tubule becomes compressed thereby resulting reduced tubular lumen of the gland as observed by that more cercaria
and rediae were found in between the hepatic tubules and tunica propria causing extension of the space between tubules.
An efficient method for the exposure of mice to cercaria
of Schistosoma mansoni.
We cracked the shells of each live red-rim melania snail between the first and second body whorl, removed the digestive tract, and examined each for rediae and cercaria
of trematodes with a dissecting microscope at 100x total magnification.
Ambas as consideracoes denotam maximas dos pensamentos suscitados, representacoes de suas formas mais "puras" que nao corresponderiam a realidade que cercaria
a origem e atualidade dos mesmos (25).
They are unique among digeneans by having a furcocystocercous cercaria
that is macroscopic, progenetic, and actively swims, mimicking a fish prey item.
Quiniou et al., "Genetic sequence data identifies the cercaria
of Drepanocephalus spathans (Digenea: Echinostomatidae), a parasite of the double-crested cormorant (Phalacrocorax auritus), with notes on its pathology in juvenile channel catfish (Ictalurus punctatus)," Journal of Parasitology, vol.