Rahul Sharma (Editor)

Diplectanidae

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Kingdom
  
Animalia

Rank
  
Family

Phylum
  
Platyhelminthes

Subclass
  
Monopisthocotylea

Diplectanidae

Similar
  
Pseudorhabdosynochus, Lamellodiscus, Monogenea, Dactylogyridae, Capsalidae

The Diplectanidae are a family of monopisthocotylean monogeneans. They are all parasitic on the gills of fish (marine or freshwater). Diplectanids are small animals, generally around 1 mm in length. As parasites, they can be extremely numerous, up to several thousand on an individual fish.

Contents

History

The family Diplectanidae was proposed by the Italian parasitologist Monticelli in 1903 (as subfamily Diplectaninae). The status of the family and its components was later examined by various authors, including Johnston & Tiegs (1922), Price (1937), Bychowsky (1957), Yamaguti (1963), and Oliver (1987).

Morphology

Diplectanids are diagnosed by the combination of these three characters:

  • Presence of accessory adhesive organs on dorsal and ventral part of the haptor, called squamodiscs when they are made up of rodlets and lamellodiscs when they include lamellae
  • In the haptor, three transversal bars (one ventral, two lateral (dorsal), connected to two pairs of hooks (one pair dorsal, one pair ventral)
  • A germarium (or ovary) which is anterior to the testis and loops around the right intestinal caecum

    • Genera

    The 32 genera recognized in WorMs are:

    References

    Diplectanidae Wikipedia
    (Text) CC BY-SA


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