Neifar, L.; Euzet, L.; Oliver, G. (2004). New species of Lamellodiscus (Platyhelminthes, Monogenea, Diplectanidae) from the gills of the marine fishes of the genus Pagrus (Teleostei, Sparidae). Zoosystema. 26: 365-376.
6917
Neifar, L.; Euzet, L.; Oliver, G.
2004
New species of <i>Lamellodiscus</i> (Platyhelminthes, Monogenea, Diplectanidae) from the gills of the marine fishes of the genus <i>Pagrus</i> (Teleostei, Sparidae).
Zoosystema
26: 365-376
Publication
Available for editors
New species of Lamellodiscus (Plathelminthes, Monogenea, Diplectanidae) from
the gills of the marine fishes of the genus Pagrus (Teleostei, Sparidae).
Three species of Lamellodiscus Johnston & Tiegs, 1922 were collected from
the gills of two species of Pagrus Cuvier, 1816 (Sparidae) from Mediterranean
and Atlantic waters: Lamellodiscus sarculus n. sp. and L. sigillatus n. sp. from
Pagrus coeruleostictus (Valenciennes, 1830), and L. rastellus n. sp. from
P. auriga (Valenciennes, 1843). This three parasites belong to the group of
Lamellodiscus characterized by a lamellodisc of the group “ignoratus” with
entirely circular sclerotised lamellae and a copulatory organ of the type “lyre”;
composed in two parts, one simple piece and one forked. These three new
species can be distinguished by the morphology of the sclerotized haptoral
structure and the copulatory organ. These species are found, on respective
host, in the Atlantic Ocean (Senegal) and in Mediterranean Sea (Tunisia).
A structure with a variable size related to a “pseudospermatophore” was
observed in the vagina of numerous Lamellodiscus possessing a copulatory
organ of the type “lyre”. The specificity of Lamellodiscus parasites of the sparid
teleost of the genus Pagrus may be oioxenic.
