Pseudorhabdosynochus oliveri
Pseudorhabdosynochus oliveri, body and sclerotised parts
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Platyhelminthes
Class: Monogenea
Order: Dactylogyridea
Family: Diplectanidae
Genus: Pseudorhabdosynochus
Species:
P. oliveri
Binomial name
Pseudorhabdosynochus oliveri
Chaabane, Neifar, Gey & Justine, 2016

Pseudorhabdosynochus oliveri is a diplectanid monogenean parasitic on the gills of the dusky grouper (Mycteroperca marginata).[1]

Description

Vagina of Pseudorhabdosynochus oliveri

Pseudorhabdosynochus oliveri is a small monogenean, about 1000-1100 µm in length. The species has the general characteristics of other species of Pseudorhabdosynochus, with a flat body and a posterior haptor, which is the organ by which the monogenean attaches itself to the gill of is host. The haptor bears two squamodiscs, one ventral and one dorsal.

The sclerotized male copulatory organ, or "quadriloculate organ", has the shape of a bean with four internal chambers, as in other species of Pseudorhabdosynochus.[2] The vagina includes a sclerotized part, which is a complex structure, about 60 µm in length.

According to Chaabane, Neifar, Gey & Justine (2016),[1] Pseudorhabdosynochus oliveri is a member of the "Pseudorhabdosynochus beverleyburtonae group", which includes four species with common characteristics, including similar sclerotised vaginae and squamodiscs, and host groupers belonging to the genus Mycteroperca in the Mediterranean and the eastern Atlantic. These species are P. beverleyburtonae (Oliver, 1984) Kritsky & Beverley-Burton, 1986, P. sosia Neifar & Euzet, 2007, P. hayet Chaabane, Neifar, Gey & Justine, 2016 and P. oliveri.

Etymology

The species was named for Guy Oliver, French parasitologist, "in recognition of his research on fish monogeneans".[1]

Hosts and localities

dusky grouper (Mycteroperca marginata), the host of Pseudorhabdosynochus oliveri

The type-host of Pseudorhabdosynochus oliveri is the dusky grouper (Mycteroperca marginata) and the species has not been found in another host. The type-locality if off Cape Béar, Mediterranean Sea, France. The species was described from four specimens collected by Guy Oliver in 1965[3] and deposited in the collections of the Muséum National d'Histoire Naturelle in Paris.

References

  1. 1 2 3 Chaabane, Amira; Neifar, Lassad; Gey, Delphine; Justine, Jean-Lou (2016). "Species of Pseudorhabdosynochus (Monogenea, Diplectanidae) from groupers (Mycteroperca spp., Epinephelidae) in the Mediterranean and Eastern Atlantic Ocean, with special reference to the 'beverleyburtonae group' and description of two new species". PLOS ONE. 11 (8): e0159886. Bibcode:2016PLoSO..1159886C. doi:10.1371/journal.pone.0159886. ISSN 1932-6203. PMC 4988817. PMID 27532108. Open access icon
  2. ↑ Kritsky, D. C. & Beverley-Burton, M. 1986: The status of Pseudorhabdosynochus Yamaguti, 1958, and Cycloplectanum Oliver, 1968 (Monogenea: Diplectanidae). Proceedings of the Biological Society of Washington, 99, 17-20. PDF Open access icon
  3. ↑ Oliver, Guy (2015). Les Diplectanidae Bychowsky, 1957 (Monogenea, Monopisthocotylea, Dactylogyridea). Systématique. Biologie. Ontogénie. Écologie. Essai de phylogenèse (thesis). figshare. doi:10.6084/M9.FIGSHARE.1295274.
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