Pseudorhabdosynochus firmicoleatus

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Pseudorhabdosynochus firmicoleatus
Parasite150040-fig8 Pseudorhabdosynochus firmicoleatus Kritsky, Bakenhaster & Adams, 2015 - FIGS 57-64.tif
Body and sclerotised parts
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Platyhelminthes
Class: Monogenea
Order: Dactylogyridea
Family: Diplectanidae
Genus: Pseudorhabdosynochus
Species:
P. firmicoleatus
Binomial name
Pseudorhabdosynochus firmicoleatus
Kritsky, Bakenhaster & Adams, 2015

Pseudorhabdosynochus firmicoleatus is a diplectanid monogenean parasite on the gills of the Yellowedge grouper, Epinephelus flavolimbatus and the Snowy grouper, Epinephelus niveatus . It was described by Kritsky, Bakenhaster and Adams in 2015. [1]

Contents

Etymology

The specific epithet is derived from the Latin words firm(i) ("firm"), cole(o) ("sheath") and -atus ("marked by having"), in reference to the heavy thick-walled chambers of the MCO. [1]

Description

Pseudorhabdosynochus firmicoleatus is a small monogenean, 400-500 μm 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.

Diagnosis

Pseudorhabdosynochus firmicoleatus from snowy grouper, sclerotisd parts Parasite150040-fig9 Pseudorhabdosynochus firmicoleatus Kritsky, Bakenhaster & Adams, 2015 - FIGS 65-72.tif
Pseudorhabdosynochus firmicoleatus from snowy grouper, sclerotisd parts

Kritsky, Bakenhaster & Adams (2015) wrote that Pseudorhabdosynochus firmicoleatus most closely resembles Pseudorhabdosynochus sulamericanus (a species described by Santos, Buchmann and Gibson in 2000 [3] ) in the general morphology of the vaginal sclerite. The structure in both species possesses a delicate distal funnel at its attachment to the vaginal vestibule, a proximal bulge of the distal tube, and a small chamber. In P. firmicoleatus, however, the vaginal sclerite is delicate and lacks the irregular sclerites along the distal tube typical of P. sulamericanus. It further differs from P. sulamericanus in that the deep root of the ventral anchor has its proximal end directed dorsally. Finally, tegumental scales are lacking and the squamodiscs of P. firmicoleatus have 11–13 rows of rodlets, vs tegumental scales present and 14–17 rows in the squamodics of P. sulamericanus). No significant differences were observed between specimens of P. firmicoleatus collected from yellowedge and snowy groupers. [1]

Hosts and localities

The yellowedge grouper, Epinephelus flavolimbatus is the type-host of Pseudorhabdosynochus firmicoleatus Epinephelus flavolimbatus.jpg
The yellowedge grouper, Epinephelus flavolimbatus is the type-host of Pseudorhabdosynochus firmicoleatus

The type-host is the yellowedge grouper, Epinephelus flavolimbatus ; the species has also been found on the gills of the Snowy grouper, Epinephelus niveatus . [1] The type-locality is the open Gulf of Mexico, 70 miles south of Panama City, Florida. The record on the Snowy grouper is from the Gulf of Mexico, 60 miles south-west of Pensacola, Florida.

Related Research Articles

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

Pseudorhabdosynochus americanus is a diplectanid monogenean parasitic on the gills of groupers. It was described as Diplectanum americanum by Price in 1937 and transferred to the genus Pseudorhabdosynochus by Kritsky and Beverley-Burton in 1986. The species was redescribed by Kritsky, Bakenhaster and Adams in 2015.

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

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

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

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

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

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

Pseudorhabdosynochus sulamericanus is a diplectanid monogenean parasitic on the gills of the snowy grouper, Epinephelus niveatus, the Warsaw grouper, Epinephelus nigritus and the Haifa grouper, Epinephelus haifensis. It has been described by Santos, Buchmann & Gibson in 2000, redescribed by Kritsky, Bakenhaster and Adams in 2015. and again redescribed by Chaabane, Justine, Gey, Bakenhaster & Neifar in 2016.

<i>Pseudorhabdosynochus mcmichaeli</i> Species of worm

Pseudorhabdosynochus mcmichaeli is a diplectanid monogenean parasitic on the gills of the scamp, Mycteroperca phenax. It has been described by Kritsky, Bakenhaster and Adams in 2015.

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

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

Pseudorhabdosynochus vascellum is a diplectanid monogenean parasitic on the gills of the scamp, Mycteroperca phenax. It has been described by Kritsky, Bakenhaster and Adams in 2015.

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

Pseudorhabdosynochus contubernalis is a diplectanid monogenean parasitic on the gills of the Scamp, Mycteroperca phenax. It has been described by Kritsky, Bakenhaster and Adams in 2015.

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

Pseudorhabdosynochus monaensis is a diplectanid monogenean parasitic on the gills of the rock hind, Epinephelus adscensionis. It has been described by Dyer, Williams & Bunkley-Williams in 1994 and redescribed by Kritsky, Bakenhaster and Adams in 2015.

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

Pseudorhabdosynochus mycteropercae is a diplectanid monogenean parasitic on the gills of the tiger grouper, Mycteroperca tigris (Serranidae). It has been described by Kritsky, Bakenhaster and Adams in 2015.

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

Pseudorhabdosynochus mizellei is a diplectanid monogenean parasitic on the gills of the red hind, Epinephelus guttatus. It has been described by Kritsky, Bakenhaster and Adams in 2015. The species was named Diplectanum epinepheli by Mizelle & Wood but this name was not published and is a nomen nudum according to Kritsky, Bakenhaster & Adams (2015).

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

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

Pseudorhabdosynochus woodi is a diplectanid monogenean parasitic on the gills of the red hind, Epinephelus guttatus. It has been described by Kritsky, Bakenhaster and Adams in 2015.

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

Pseudorhabdosynochus tumeovagina is a diplectanid monogenean parasitic on the gills of the speckled hind, Epinephelus drummondhayi. It has been described by Kritsky, Bakenhaster and Adams in 2015.

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

Pseudorhabdosynochus beverleyburtonae is a diplectanid monogenean parasitic on the gills of the dusky grouper, Epinephelus marginatus. It has been described by Guy Oliver in 1984 as Cycloplectanum beverleyburtonae, redescribed by Oliver in 1987, transferred to the genus Pseudorhabdosynochus by Kritsky & Beverley-Burton in 1986 as Pseudorhabdosynochus beverleyburtonae, redescribed by Kritsky, Bakenhaster and Adams in 2015, and redescribed in 2016 by Chaabane, Neifar, Gey & Justine.

Pseudorhabdosynochus hargisi is species of a diplectanid monogenean parasitic on the gills of the White grouper Epinephelus aeneus. It was described in 1984 as Diplectanum hargisi and transferred to the genus Pseudorhabdosynochus by Santos, Buchmann & Gibson in 2000. Its systematic position has been clarified by Kritsky, Bakenhaster & Adams in 2015, who differentiated it from Pseudorhabdosynochus americanus.

Pseudorhabdosynochus magnisquamodiscum is species of diplectanid monogenean parasitic on the gills of a fish. It was described in 1984 under the name Cycloplectanum magnisquamodiscum and later transferred to the genus Pseudorhabdosynochus.

References

  1. 1 2 3 4 5 Kritsky, Delane C.; Bakenhaster, Micah D.; Adams, Douglas H. (2015). "Pseudorhabdosynochus species (Monogenoidea, Diplectanidae) parasitizing groupers (Serranidae, Epinephelinae, Epinephelini) in the western Atlantic Ocean and adjacent waters, with descriptions of 13 new species". Parasite. 22: 24. doi:10.1051/parasite/2015024. ISSN   1776-1042. PMC   4536336 . PMID   26272242. Open Access logo PLoS transparent.svg
  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.
  3. ↑ Santos, Cláudia Portes; Buchmann, Kurt; Gibson, David I. (2000). "Pseudorhabdosynochus spp. (Monogenea: Diplectanidae) from the gills of Epinephelus spp. in Brazilian waters". Systematic Parasitology. 45 (2): 145–153. doi:10.1023/A:1006232029426. ISSN   0165-5752. PMID   10743859. S2CID   26949491.
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