Pseudorhabdosynochus manipulus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Platyhelminthes
Class: Monogenea
Order: Dactylogyridea
Family: Diplectanidae
Genus: Pseudorhabdosynochus
Species:
P. manipulus
Binomial name
Pseudorhabdosynochus manipulus
Justine & Sigura, 2007

Pseudorhabdosynochus manipulus is a diplectanid monogenean parasitic on the gills of the malabar grouper, Epinephelus malabaricus. It was first described in 2007.[1]

Description

Pseudorhabdosynochus manipulus is a small monogenean, 0.6 mm in length. 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. In this species, the sclerotised vagina has a cylindrical primary canal and the primary and secondary chambers are both elongate.[1]

Etymology

Pseudorhabdosynochus manipulus is part of a series of six species of Pseudorhabdosynochus, all described from the malabar grouper, Epinephelus malabaricus. The authors indicated that "names of all new species described begin all by ‘ma-’ to provide an easy way to identify these species from E. malabaricus among the numerous species of Pseudorhabdosynochus already described or to be described". The species are P. maaensis, P. malabaricus, P. manifestus, P. manipulus, P. marcellus, and P. maternus. More precisely, for this species, the name ‘manipulus’ (Latin), meaning handful, refers to the small number of specimens found.

Hosts and localities

The malabar grouper, Epinephelus malabaricus is the type-host of Pseudorhabdosynochus manipulus

The type-host and only recorded host of P. manipulus is the malabar grouper, Epinephelus malabaricus (Serranidae: Epinephelinae). The type-locality and only recorded locality is off Nouméa, New Caledonia[1] where it was considered a rare species, with only 5% of the specimens collected.[1]

References

  1. 1 2 3 4 Jean-Lou Justine; Aude Sigura (2007). "Monogeneans of the malabar grouper Epinephelus malabaricus (Perciformes, Serranidae) off New Caledonia, with a description of six new species of Pseudorhabdosynochus (Monogenea: Diplectanidae)" (PDF). Zootaxa. 1543: 1–44. doi:10.11646/zootaxa.1543.1.1. S2CID 82236324. PDF of Abstract
  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 icon
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