Systematic Parasitology

, Volume 1, Issue 3, pp 189-202

First online:

A revision of the family Leucochloridiidae Poche (Digenea) and studies on the morphology of Leucochloridium paradoxum Carus, 1835

  • T. A. BakkeAffiliated withZoological Museum, University of Oslo

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The sporocyst and metacercaria of Leucochloridium paradoxum Carus, recovered from Succinea putris L. in Norway, are described and figured. Adults recovered from experimental infection of Taeniopygia guttata (Vieillot) with L. paradoxum metacercariae are described, using results from scanning electron microscopy, and compared with earlier information. The family Leucochloridiidae Poche is revised. Four genera are recognized within the family (i.e. Leucochloridium Carus, 1835; Urogonimus Monticelli, 1888; Urotocus Looss, 1899; Michajlovia Pojmanska, 1973). The larval ecological and morphological characteristics are tabulated for the three genera with known larval stages. The status of the genus Neoleucochloridium Kagan, 1951, is changed, on the grounds of larval similarities with Leucochloridium Carus. This means that within the genus Leucochloridium Carus three subgenera are erected, based primarily on sporocyst characteristics. These are Leucochloridium, Neoleucochloridium and Papilloleucochloridium. The diagnostic larval and adult characters are tabulated.

The known larval records of species in the genus Leucochloridium are discussed and revised within the framework of this new classification. ac]19790812