Pseudorhabdosynochus serrani

Pseudorhabdosynochus serrani is a species of diplectanid monogenean parasitic on the gills of a fish. It was described in 1953 by Satyu Yamaguti as Diplectanum serrani [1] and later transferred to the genus Pseudorhabdosynochus.[2] The species has been redescribed in 2005. [3]

Pseudorhabdosynochus serrani
Scientific classification
Kingdom: Animalia
Phylum: Platyhelminthes
Class: Monogenea
Order: Dactylogyridea
Family: Diplectanidae
Genus: Pseudorhabdosynochus
Species:
P. serrani
Binomial name
Pseudorhabdosynochus serrani
(Yamaguti, 1953) Kritsky & Beverley-Burton, 1986

Description

Pseudorhabdosynochus serrani is a small monogenean, 0.3-0.4 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.

Etymology

The etymology of the specific epithet is not explained in the original description [1] but obviously refers to the genus of the host fish, Serranus.

Hosts and localities

The type-locality is off Makassar (Indonesia), and the type-host is an unnamed fish of the genus Serranus.[1] The species has been recorded from wild and maricultured grouper, Epinephelus coioides and Epinephelus bruneus, in Daya Bay, South China Sea.[4]

References
  1. Yamaguti, S. 1953: Parasitic worms mainly from Celebes. Part 2. Monogenetic trematodes of fishes. Acta Medicinae Okayama, 8, 203-256 + 209 Pl. Article Archived 2016-03-04 at the Wayback Machine PDF Archived 2015-02-09 at the Wayback Machine
  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. Yang, Tingbao; Gibson, David I.; Zeng, Bijian (2005). "Pseudorhabdosynochus summanoides n. sp. (Monogenea: Diplectanidae) from Epinephelus coioides in Dapeng Bay, South China Sea, with observations on several similar species of Pseudorhabdosynochus Yamaguti, 1958". Systematic Parasitology. 62 (3): 221–239. doi:10.1007/s11230-005-5497-4. ISSN 0165-5752. PMID 16315082.
  4. 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). doi:10.2478/s11687-010-0038-3. ISSN 1336-9083.
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