A new species of Saturnius Manter, 1969 (Digenea: Hemiuridae) from Mediterranean mullet (Teleostei: Mugilidae)

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• 作者：Douniazed Marzoug (1)
  Mohamed Rima (1)
  Zitouni Boutiba (1)
  Simona Georgieva (2) (3)
  Aneta Kostadinova (2)
  Ana Pérez-del-Olmo (4)
  
• 刊名：Systematic Parasitology
• 出版年：2014
• 出版时间：February 2014
• 年：2014
• 卷：87
• 期：2
• 页码：127-134
• 全文大小：360 KB
• 作者单位：Douniazed Marzoug (1)
  Mohamed Rima (1)
  Zitouni Boutiba (1)
  Simona Georgieva (2) (3)
  Aneta Kostadinova (2)
  Ana Pérez-del-Olmo (4)
  
  1. Laboratoire Réseau de Surveillance Environnementale, Département de Biologie, Université d’Oran, 31000, Oran, Algeria
  2. Institute of Parasitology, Biology Centre of the Academy of Sciences of the Czech Republic, Brani?ovská 31, 370 05, ?eské Budějovice, Czech Republic
  3. Faculty of Science, University of South Bohemia, Brani?ovská 31, 370 05, ?eské Budějovice, Czech Republic
  4. Institut Cavanilles de Biodiversitat i Biologia Evolutiva, Parc Científic, Universitat de València, PO Box 22085, Valencia, 46071, Spain
  
• ISSN：1573-5192

文摘

A new hemiurid digenean, Saturnius gibsoni n. sp., is described from the stomach lining of Mugil cephalus L. off Oran, Mediterranean coast of Algeria. Characteristic morphological features of the new species include small size of the body which is comprised of six pseudosegments, small ventral sucker, weakly developed mound-shaped flange at the level of the ventral sucker, and eggs being large in relation to the size of the body. Saturnius gibsoni n. sp. resembles S. minutus Blasco-Costa, Pankov, Gibson, Balbuena, Raga, Sarabeev & Kostadinova, 2006 and two unidentified Saturnius spp. in the small size of the body and most metrical features. However, in spite of the presence of five transverse septa resulting in six pseudosegments and the range overlap of some metrical features, the ventral sucker in S. minutus is much larger, the ventral sucker muscular flange is more prominent, the last pseudosegment is narrower in relation to body width and more rounded, and the eggs are smaller (mean 21?×?10 vs 25?×?12?μm). Furthermore, the partial sequences of the 28S rRNA gene region (domains D1–D3; 1,195?nt) obtained from two isolates of S. gibsoni n. sp. differed by 11?nt (0.9%) from that of S. minutus. Both unidentified forms of Saturnius are clearly distinguishable from S. gibsoni n. sp. by the presence of six stout, transverse muscular septa, forming seven pseudosegments (vs five septa forming six pseudosegments). Bayesian inference analysis of partial 28S rDNA sequences based on a total of 15 species from the families Hemiuridae and Lecithasteridae depicted the Bunocotylinae Dollfus, 1950 as a strongly supported basal clade, with Bunocotyle progenetica (Markowski, 1936) as the closest sister taxon to Saturnius spp.