title: Megalophallus deblocki n. sp. (Digenea: Microphallidae) from Rostrhamus sociabilis (Vieillot) (Aves: Accipitridae) in Paraguay.
abstract: A new species in the little-known digenean fauna of Paraguayan birds is described in detail, especially in relation to its terminal genitalia. The new form, Megalophallus deblocki n. sp., is a microphallid from the intestine of the snail kite Rostrhamus sociabilis (Vieillot). It is differentiated in detail from its congeners, but differs mainly in having a substantially larger phallus (e.g. in relation to the ventral sucker), a smaller ventral sucker and smaller eggs. Comments are included on the functional morphology of the terminal genitalia.
authors.affiliation: Department of Biodiversity, Central Laboratory of General Ecology, Bulgarian Academy of Sciences, 2 Gagarin Street, 1113 Sofia, Bulgaria. akk@ecolab.bas.bg
authors.forename: Aneta
authors.initials: A
authors.lastname: Kostadinova
authors.forename: Claude
authors.initials: C
authors.lastname: Vaucher
authors.forename: David I
authors.initials: DI
authors.lastname: Gibson
mesh_terms: D000818:Animals; D046093:Falconiformes / Q000469:parasitology*; D010239:Paraguay; D010986:Platyhelminths / Q000033:anatomy & histology* / Q000145:classification*