Biology:Pseudorhabdosynochus calathus

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Short description: Species of flatworm

Pseudorhabdosynochus calathus
Scientific classification edit
Domain: Eukaryota
Kingdom: Animalia
Phylum: Platyhelminthes
Class: Monogenea
Order: Dactylogyridea
Family: Diplectanidae
Genus: Pseudorhabdosynochus
Species:
P. calathus
Binomial name
Pseudorhabdosynochus calathus
Hinsinger & Justine, 2006

Pseudorhabdosynochus calathus is a diplectanid monogenean parasitic on the gills of the grouper Epinephelus rivulatus. It has been described in 2006. [1]

Description

Pseudorhabdosynochus calathus is a small monogenean, 0.5 mm-1.1 mm 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, resembling to what is found in P. cupatus.[1]

Etymology

Calathus is Latin for cup, bowl. Pseudorhabdosynochus calathus was named with reference to P. cupatus (cupatus means "in form of cup"), and refers to the cup-shape of the squamodiscs in live specimens. A similar etymology was used for P. cyathus Hinsinger & Justine, 2006.[1]

Hosts and localities

The type-host and only recorded host of P. calathus is the grouper Epinephelus rivulatus (Serranidae: Epinephelinae). The type-locality and only recorded locality is off Nouméa, New Caledonia.[1]

References

  1. 1.0 1.1 1.2 1.3 Hinsinger, Damien D.; Justine, Jean-Lou (2006). "The Pseudorhabdosynochus cupatus group' (Monogenea: Diplectanidae) on Epinephelus fasciatus, E. howlandi, E. rivulatus and E. merra (Perciformes: Serranidae) off New Caledonia, with descriptions of Pseudorhabdosynochus cyathus n. sp. and P. calathus n. sp.". Systematic Parasitology '64 (2): 69–90. doi:10.1007/s11230-005-9018-2. ISSN 0165-5752. PMID 16773473. 
  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. https://www.biodiversitylibrary.org/page/34595480.  open access

Wikidata ☰ Q2126059 entry