Pseudorhabdosynochus satyui

Last updated

Pseudorhabdosynochus satyui
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Platyhelminthes
Class: Monogenea
Order: Dactylogyridea
Family: Diplectanidae
Genus: Pseudorhabdosynochus
Species:
P. satyui
Binomial name
Pseudorhabdosynochus satyui
Justine, 2009

Pseudorhabdosynochus satyui is a species of diplectanid monogenean that is parasitic on the gills of the Hong Kong grouper ( Epinephelus akaara ). It was described in 2009. [1]

Contents

Description

Pseudorhabdosynochus satyui is a small monogenean, 0.5-0.7 mm in length. [1] 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.

The species was found in 2009 among specimens of other species of diplectanid monogeneans, on two slides made in 1936 par the Japanese parasitologist Satyu Yamaguti and deposited in the Meguro Parasitological Museum in Tokyo, Japan. Only two specimens of the species were found. [1] Jean-Lou Justine wrote "the author is aware that describing a new species from only two specimens is not optimal. However, P. satyui has a sclerotised vagina and measurements which enable its differentiation from other species, and the specimens are already deposited on two slides of good quality". [1]

Etymology

The species Pseudorhabdosynochus satyui was named in honor of "Satyu Yamaguti, a parasitologist of immense reputation, who collected the type-specimens". [1]

Hosts and localities

The type-host and only recorded host of P. satyui is the Hong Kong grouper (Epinephelus akaara). The type-locality and only recorded locality is Off Tarumi, Inland Sea of Japan. [1]

Related Research Articles

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

Pseudorhabdosynochus epinepheli is a diplectanid monogenean parasitic on the gills of species of groupers. It is the type species of the genus Pseudorhabdosynochus Yamaguti, 1958.

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

Pseudorhabdosynochus huitoe is a diplectanid monogenean parasitic on the gills of the highfin grouper, Epinephelus maculatus. It was 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 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 cyathus 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 variabilis is a diplectanid monogenean parasitic on the gills of the grouper Epinephelus morrhua. It has been described in 2008.

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

Pseudorhabdosynochus enitsuji is a diplectanid monogenean parasitic on the gills of groupers. It has been described in 2007 by Lassad Neifar & Louis Euzet. The name of the species honours French parasitologist Jean-Lou Justine . The species has been redescribed by Amira Chaabane, Lassad Neifar, and Jean-Lou Justine in 2017, from the type-material and additional specimens.

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 quadratus is a species of diplectanid monogenean that is parasitic on the gills of the white-streaked grouper Epinephelus ongus. It was described in 2011.

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

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

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 querni is a species of diplectanid monogenean parasitic on the gills of the grouper Epinephelus quernus. It was described in 1968 by Satyu Yamaguti under the name Diplectanum querni and transferred to the genus Pseudorhabdosynochus in 1986. The species has been redescribed in 2005 from the type-material.

References

  1. 1 2 3 4 5 6 Justine, Jean-Lou (2009). "A redescription of Pseudorhabdosynochus epinepheli (Yamaguti, 1938), the type-species of Pseudorhabdosynochus Yamaguti, 1958 (Monogenea: Diplectanidae), and the description of P. satyui n. sp. from Epinephelus akaara off Japan". Systematic Parasitology. 72 (1): 27–55. doi: 10.1007/s11230-008-9171-5 . PMID   19048406.
  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 logo PLoS transparent.svg