Pseudorhabdosynochus youngi explained

Pseudorhabdosynochus youngi is species of diplectanid monogenean parasitic on the gills of the blacktip grouper,Epinephelus fasciatus. It was described in 2009.^[1]

Description

Pseudorhabdosynochus youngi is a small monogenean, 0.3 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.

This species is a member of the Pseudorhabdosynochus cupatus group, which includes several species having a similar structure of the sclerotised vagina; these are Pseudorhabdosynochus cupatus, Pseudorhabdosynochus cyathus, Pseudorhabdosynochus calathus and Pseudorhabdosynochus youngi.^{[3] [4] [1]}

Etymology

The name of the species is after Australian ichthyologist and parasitologist P. C. Young, "in recognition to his work on monogeneans, and especially this species".^[1]

Hosts and localities

The type-locality is the Barrier Reef off Nouméa, New Caledonia.^[1] The type-host is the Blacktip Grouper, Epinephelus fasciatus.^[1]

External links

• Information about P. C. Young: Angus, B. M., Cannon, L. R. G., & Adlard, R. D. (2007). Parasitology and the Queensland Museum with biographical notes on collectors. Memoirs of the Queensland Museum, 53, 1-157. Free PDF

Notes and References

1. Justine. Jean-Lou. Dupoux. Cyndie. Cribb. Thomas. Resolution of the discrepant host-specificity of Pseudorhabdosynochus species (Monogenea, Diplectanidae) from serranid fishes in the tropical Indo-Pacific. Acta Parasitologica. 54. 2. 2009. 1896-1851. 10.2478/s11686-009-0027-1. free.
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
3. Hinsinger. Damien D.. Justine. Jean-Lou. 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. 2006. 69–90. 0165-5752. 10.1007/s11230-005-9018-2. 16773473. free.
4. Justine. Jean-Lou. Species of Pseudorhabdosynochus Yamaguti, 1958 (Monogenea: Diplectanidae) from Epinephelus fasciatus and E. merra (Perciformes: Serranidae) off New Caledonia and other parts of the Indo-Pacific Ocean, with a comparison of measurements of specimens prepared using different methods, and a description of P. caledonicus n. sp.. Systematic Parasitology. 62. 1. 2005. 1–37. 0165-5752. 10.1007/s11230-005-5480-0. 16132868. 35119181 .