Pseudorhabdosynochus cyathus

Last updated

Pseudorhabdosynochus cyathus
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Platyhelminthes
Class: Monogenea
Order: Dactylogyridea
Family: Diplectanidae
Genus: Pseudorhabdosynochus
Species:
P. cyathus
Binomial name
Pseudorhabdosynochus cyathus
Hinsinger & Justine, 2006

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

Contents

Description

Pseudorhabdosynochus cyathus is a small monogenean, 0.4 mm-1.2 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

Cyathus is Latin for cup, bowl. Pseudorhabdosynochus cyathus 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. [1]

Hosts and localities

The type-host and only recorded host of P. cyathus is the grouper Epinephelus howlandi (Serranidae: Epinephelinae). The type-locality and only recorded locality is off Nouméa, New Caledonia. [1] It was found in New Caledonia that large host fish, Epinephelus howlandi, harboured only P. venus Hinsinger & Justine, 2006 and that small hosts (of fork length less than 300–350 mm) harboured only P. cyathus. Only one fish, of intermediate length, was found with both species of parasites. [1]

Related Research Articles

Pseudorhabdosynochus auitoe is a diplectanid monogenean parasitic on the gills of the Highfin grouper, Epinephelus maculatus. It was described in 2007.

Pseudorhabdosynochus buitoe is a diplectanid monogenean parasitic on the gills of the Highfin grouper, Epinephelus maculatus. It has been described in 2007.

Pseudorhabdosynochus duitoe is a diplectanid monogenean parasitic on the gills of the highfin grouper, Epinephelus maculatus. It has been described in 2007.

Pseudorhabdosynochus guitoe is a diplectanid monogenean parasitic on the gills of the Highfin grouper, Epinephelus maculatus. It has been described in 2007.

<i>Pseudorhabdosynochus malabaricus</i> Species of flatworm

Pseudorhabdosynochus malabaricus is a diplectanid monogenean parasitic on the gills of the malabar grouper, Epinephelus malabaricus. It has been described in 2007.

<i>Pseudorhabdosynochus marcellus</i> Species of flatworm

Pseudorhabdosynochus marcellus is a diplectanid monogenean parasitic on the gills of the malabar grouper, Epinephelus malabaricus. It was described in 2007.

<i>Pseudorhabdosynochus manipulus</i> Species of flatworm

Pseudorhabdosynochus manipulus is a diplectanid monogenean parasitic on the gills of the malabar grouper, Epinephelus malabaricus. It was first described in 2007.

<i>Pseudorhabdosynochus caledonicus</i> Species of flatworm

Pseudorhabdosynochus caledonicus is a diplectanid monogenean parasitic on the gills of the Blacktip grouper, Epinephelus fasciatus. It has been described in 2005.

Pseudorhabdosynochus venus is a diplectanid monogenean parasitic on the gills of the grouper Epinephelus howlandi. It has been described in 2006.

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

<i>Pseudorhabdosynochus morrhua</i> Species of flatworm

Pseudorhabdosynochus morrhua is a diplectanid monogenean parasitic on the gills of the grouper Epinephelus morrhua. It has been described in 2008.

Pseudorhabdosynochus inversus is a diplectanid monogenean parasitic on the gills of the halfmoon grouper, Epinephelus rivulatus. It was described in 2008, from only three specimens.

Pseudorhabdosynochus chauveti is a species of diplectanid monogenean that is parasitic on the gills of the blue grouper Epinephelus cyanopodus. It was described in 2008.

Pseudorhabdosynochus cyanopodus is a species of diplectanid monogenean that is parasitic on the gills of the blue grouper Epinephelus cyanopodus. It was described in 2008.

Pseudorhabdosynochus crassus is a species of diplectanid monogenean that is parasitic on the gills of the camouflage grouper Epinephelus polyphekadion. It was described in 2011.

Pseudorhabdosynochus exoticoides is a species of diplectanid monogenean that is parasitic on the gills of the brownspotted grouper Epinephelus chlorostigma. It was described in 2010.

Pseudorhabdosynochus cupatus is a species of diplectanid monogenean parasitic on the gills of groupers.

Pseudorhabdosynochus youngi is species of diplectanid monogenean parasitic on the gills of the blacktip grouper, Epinephelus fasciatus. It was described in 2009.

Pseudorhabdosynochus melanesiensis is a diplectanid monogenean parasitic on the gills of the grouper, Epinephelus merra. It was described in 1958 as Diplectanum melanesiensis then transferred to the genus Pseudorhabdosynochus by Kritsky & Beverley-Burton in 1986.


Pseudorhabdosynochus vagampullum is a species of diplectanid monogenean parasitic on the gills of a grouper. It was described in 1969, from eight specimens, under the name Diplectanum vagampullum and transferred to the genus Pseudorhabdosynochus in 1986. The species has been redescribed several times.

References

  1. 1 2 3 4 5 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. Open Access logo PLoS transparent.svg