Skoulekia erythrini n. sp. (Digenea: Aporocotylidae): a parasite of Pagellus erythrinus (L.) (Perciformes: Sparidae) from the western Mediterranean with an amendment of the generic diagnosis
Language English Country Netherlands Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
28573546
DOI
10.1007/s11230-017-9733-5
PII: 10.1007/s11230-017-9733-5
Knihovny.cz E-resources
- MeSH
- Species Specificity MeSH
- DNA, Ribosomal Spacer genetics MeSH
- Perciformes anatomy & histology classification MeSH
- RNA, Ribosomal, 28S genetics MeSH
- Trematoda anatomy & histology classification genetics MeSH
- Animals MeSH
- Check Tag
- Animals MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Geographicals
- Mediterranean Sea MeSH
- Names of Substances
- DNA, Ribosomal Spacer MeSH
- RNA, Ribosomal, 28S MeSH
A new aporocotylid, Skoulekia erythrini n. sp., is described from the heart, cephalic kidney and gill blood vessels of the common pandora Pagellus erythrinus (L.) collected from several localities of the western Mediterranean off Spain. The new species differs from the type- and only species of the genus, S. meningialis Alama-Bermejo, Montero, Raga & Holzer, 2011 in possessing a symmetrical body (vs laterally curved), short tegumental spines (3-4 vs 7-10 µm) without hooked ends, diffuse (vs conspicuous) oesophageal gland-cells, a relatively longer oesophagus, a testis that is shorter in relation to body length and a much smaller seminal vesicle (17-34 × 10-26 vs 33-101 × 27-97 μm). Elongated ellipsoidal eggs of S. erythrini n. sp. were found trapped in gill vessels in histological sections. Phylogenetic analyses based on partial 28S rDNA and ITS2 sequences supported the placement of the new species within Skoulekia and the close relationships of this genus with Psettarium Goto & Ozaki, 1929 and Pearsonellum Overstreet & Køie, 1986. Skoulekia meningialis is described from a new sparid host, Diplodus puntazzo (Walbaum), collected off Santa Pola, Spain. The new morphological data for the two Skoulekia spp. and a re-examination of three paratypes of S. meningialis pinpointed features amending both the description of S. meningialis and the generic diagnosis of Skoulekia.
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