Pseudorhabdosynochus coioidesis

Pseudorhabdosynochus coioidesis
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Platyhelminthes
Class: Monogenea
Order: Dactylogyridea
Family: Diplectanidae
Genus: Pseudorhabdosynochus
Species:
P. coioidesis
Binomial name
Pseudorhabdosynochus coioidesis
Bu, Leong, Wong, Woo & Foo, 1999

Pseudorhabdosynochus coioidesis is a diplectanid monogenean parasitic on the gills of groupers. It was described in 1999.[1]

Description

Pseudorhabdosynochus coioidesis is a small monogenean. 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. The vagina includes a sclerotized part, which is a complex structure.

Etymology

The specific epithet is based on the name of its host fish Epinephelus coioides.

Hosts and localities

The orange-spotted grouper Epinephelus coioides, the host of Pseudorhabdosynochus coioidesis

The hosts of Pseudorhabdosynochus coioidesis are the groupers Epinephelus coioides (type-host) and Epinephelus aerolatus.[1] The localities are Penang, Kedah, Malaysia, Hong Kong, and Medan, Indonesia.[1]

Infection in fish

The intensity of Pseudorhabdosynochus coioidesis can be as high as 294 monogeneans per fish (Epinephelus coioides) in South China[2] and exhibits seasonal variations.[3]

References

  1. ^ a b c Bu, S. S. H.; Leong, T. S.; Wong, S. Y.; Woo, Y. S. N.; Foo, R. W. T. (1999). "Three diplectanid monogeneans from marine finfish (Epinephelus spp.) in the Far East". Journal of Helminthology. 73 (4): 301–312. doi:10.1017/S0022149X99000505. S2CID 86124568.
  2. ^ Luo, Y.; Yang, T. (2010). "Seasonal population dynamics of the monogeneans Pseudorhabdosynochus coioidesis and P. serrani on wild versus cultured groupers in Daya Bay, South China Sea". Helminthologia. 47 (4): 241–250. doi:10.2478/s11687-010-0038-3. ISSN 1336-9083.
  3. ^ Yufa, Luo; Tingbao, Yang (2012). "Seasonal patterns in the community of gill monogeneans on wild versus cultured orange-spotted grouper, Epinephelus coioides Hamilton, 1822 in Daya Bay, South China Sea". Aquaculture Research. 43 (8): 1232–1242. doi:10.1111/j.1365-2109.2011.02927.x. ISSN 1355-557X.