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Start Over Creator Diamanka, Arfang

1. Lamellodiscus (Monogenea: Diplectanidae) parasites of Dentex macrophthalmus (Teleostei: Sparidae) from the North Atlantic coast of Africa, with a redescription of L. dentexi Aljoshkina, 1984, and description of three new species

Creator:
Diamanka, Arfang, Neifar, Lassâd, Pariselle, Antoine, and Euzet, Louis
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
Monogenea, Diplectanidae, Lamellodiscus dentexi, Lamellodiscus toguebayei, Lamellodiscus vicinus, Lamellodiscus triacies, Dentex macrophthalmus, Senegal, and Morocco
Language:
English
Description:
Lamellodiscus dentexi Aljoshkina, 1984, a gill parasite of Dentex macrophthalmus (Bloch), is redescribed based on new material from the northwest coast of Africa (Senegal and Morocco). Three new species of Lamellodiscus Johnston et Tiegs, 1922 from D. macrophthalmus are described, Lamellodiscus toguebayei sp. n., L. vicinus sp. n., and L. triacies sp. n., all belonging to the ''ignoratus'' group. They can be distinguished from all other species of this group by the size and shape of male copulatory organ and sclerotised parts of the haptor. Considering the peculiar morphology of the male copulatory organ (long and thin tube) we propose to put together L. dentexi, L. virgula Euzet et Oliver, 1967 and L. obeliae Oliver, 1973 to form the ''elongatus'' type within the ''elegans'' group.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

2. Two new species of Protogyrodactylus (Monogenoidea: Dactylogyridae) from the gills of Gerres nigri (Teleostei: Gerreidae) from Senegal

Creator:
Boeger, Walter A., Diamanka, Arfang, Pariselle, Antoine, and Patella, Luciana
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
Protogyrodactylus, Gerres nigri, Senegal, Protogyrodactylus ethiopicus, and Protogyrodactylus kritskyi
Language:
English
Description:
Protogyrodactylus ethiopicus sp. n. and P. kritskyi sp. n. are described from the gills of Gerres nigri Günther (Gerreidae, Perciformes) captured from the estuary of the Sine-Saloum River (Senegal, West Africa). These new species differ from previously described species within the genus by a mid- or dextro-ventral vaginal opening (dextral in all other species). They are part of a morphological species group within Protogyrodactylus Johnston et Tiegs, 1922 that has the tip of the superficial root of the ventral anchor resembling a hook and two anterior projections on the anterior margin of the ventral bar. Protogyrodactylus ethiopicus differs from the remaining species in this group mainly by the morphology of the base of the male copulatory organ (MCO), which is disk-shaped, and the shape of the anterior projections of the ventral bar (round in the new species and relatively elongate in the other species of the group). The other new species, P. kritskyi, differs from all others in the same morphological group in having a MCO with a greatly expanded base that bears a heel-like subterminal sclerotization.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public