| morphology, ultrastructure, genetics, and morphometrics of diplostomum sp. (digenea: diplostomidae) metacercariae infecting the european flounder, platichthys flesus (l.) (teleostei: pleuronectidae), off the northwest coast of portugal. | the morphology, ultrastructure, genetics, and morphometrics of a species of diplostomum von nordmann 1832 (digenea: diplostomidae), isolated from the european flounder (platichthys flesus (l.)) caught off the northwest coast of portugal, are characterized. the metacercarial stage was found unencysted in the lens capsule of the eye. light microscopical observations revealed the existence of some variability in specimen shape and size, with two morphotypes, referred to as "round" and "long", being ... | 2011 | 21626424 |