title: Argentophilic structures of the miracidium of Echinostoma trivolvis (Cort, 1914) (Trematoda: Echinostomatidae).
abstract: Argentophilic structures of the miracidium of Echinostoma trivolvis were described from 80 specimens reared from material originally collected in eastern Pennsylvania, U.S.A. Miracidia were impregnated with 0.5% aqueous silver nitrate solution. The miracidium has 18 epidermal plates arranged in 4 rows of 6 + 6 + 4 + 2 = 18. Up to 20 papillalike structures on the terebratorium were arranged along 3 axes and in 5 groups. A single papilla was located at the base of each of the 6 epidermal plates of the first row. The eyespots were located posterior to the first row of plates and 2 excretory pores were located anterior to the last row of plates.
authors.affiliation: Institute of Parasitology, Bulgarian Academy of Sciences, Sofia.
authors.forename: V
authors.initials: V
authors.lastname: Dimitrov
authors.forename: I
authors.initials: I
authors.lastname: Kanev
authors.forename: B
authors.initials: B
authors.lastname: Fried
authors.forename: V
authors.initials: V
authors.lastname: Radev
mesh_terms: D000818:Animals; D004449:Echinostoma / Q000378:metabolism / Q000648:ultrastructure*; D007814:Larva / Q000378:metabolism / Q000648:ultrastructure; D012835:Silver Nitrate / Q000378:metabolism; D016622:Silver Staining
chemical_list: D012835:Silver Nitrate