Anchoromicrocotyle

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Anchoromicrocotyle
Anchoromicrocotyle guaymensis (Microcotylidae).gif
Anchoromicrocotyle guaymensis (Type-species of Anchoromicrocotyle )
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Anchoromicrocotyle

Bravo-Hollis, 1981

Anchoromicrocotyle is a genus which belongs to the family Microcotylidae and class Monogenea. Species of Anchoromicrocotyle are ectoparasites that affect their host by attaching themselves as larvae on the gills of the fish and grow into adult stage. This larval stage is called oncomiracidium, and is characterized as free swimming and ciliated. As all Anchoromicrocotylinae, members of Anchoromicrocotyle are characterized by a larval organ and larval hooks and the structure of their genital complex. [1] This genus was created by Bravo-Hollis in 1981, to accommodate Monogeneans recovered from the gills of Atractoscion nobilis (Sciaenidae) (synonym of Cynoscion nobilis ) caught off California. In the same work, Bravo-Hollis in 1981 created a new subfamily Anchoromicrocotylinae and emended the diagnosis of the family Microcotylidae.

Contents

Morphology and hosts

Members of Anchoromicrocotyle have an elongated body with the a symmetrical haptor armed with three pairs of larval hooks. The digestif system includes two oral suckers with papillary edges, a pharynx and an esophagus present. The male genital system includes numerous postovarian testicles, a vas deferens and a complex copulatory organ composed of: a penis-like copulatory organ, a male atrium and two prostate bags. The female genital system comprises a complex ovary, a genito-intestinal canal, an ootype, a uterus and a medio-dorsal unarmed vagina. Species of Anchoromicrocotyle are parasites of marine fish of the family Sciaenidae. [1]

Species

According to the World Register of Marine Species, [2] this genus includes one species:

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Microcotyle victoriae is a species of monogenean, parasitic on the gills of a marine fish. It belongs to the family Microcotylidae.

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Anchoromicrocotylinae is a subfamily of flatworms within the family Microcotylidae and class Monogenea. This subfamily was created by Bravo-Hollis in 1981, to accommodate Monogeneans recovered from the gills of Atractoscion nobilis (Sciaenidae) caught off California. In the same work, Bravo-Hollis in 1981 created the new genus Anchoromicrocotyle and amended the diagnosis of the family Microcotylidae. Members of Anchoromicrocotylinae differ from other Microcotylidae by the presence of a larval organ and larval hooks and the structure of the genital complex.

Cynoscionicola is a genus which belongs to the family Microcotylidae and class Monogenea. Species of Cynoscionicola are ectoparasites that affect their host by attaching themselves as larvae on the gills of the fish and grow into adult stage. This larval stage is called oncomiracidium, and is characterized as free swimming and ciliated. This genus was proposed by Price in 1962, to accommodate Cynoscionicola heteracantha and Cynoscionicola pseudoheteracantha . Members of Cynoscionicola are characterised by a genital atrium with two anterior muscular pockets armed with single row of hooked spines, and two posterior lateral muscular pouches armed with spines.

Metamicrocotyla is a genus which belongs to the family Microcotylidae and class Monogenea. It was created by Yamaguti in 1953 to include Metamicrocotyla bora and Metamicrocotyla filiformis from the gills off the flathead grey mullet Mugil cephalus (Mugilidae). As all Monogenea, species of Metamicrocotyla are ectoparasites that affect their host by attaching themselves as larvae on the gills of the fish and grow into adult stage. This larval stage is called oncomiracidium, and is characterized as free swimming and ciliated. Members of Metamicrocotyla are characterized by a symmetrical haptor, a variable number of postovarian testes and with no cirrus nor vagina. their genital atrium is provided with paired groups of spines or hooks.

Bivagina is a genus of monogeneans. As all Monogenea, species in the genus are ectoparasites that affect their host by attaching themselves as larvae on the gills of fish and grow into adult stage. This larval stage is called oncomiracidium, and is characterized as free swimming and ciliated.

Jaliscia is a genus which belongs to the family Microcotylidae and class Monogenea. As all Monogenea, species of Gamacallum are ectoparasites that affect their host by attaching themselves as larvae on the gills of the fish and grow into adult stage. This larval stage is called oncomiracidium, and is characterized as free swimming and ciliated.

References

  1. 1 2 3 Bravo-Hollis, M. (1981). Helmintos de peces del Pacífico mexicano XXXVI. Sobre un género y subfamilia nuevos de la familia Microcotylidae Taschenberg, 1879. Emend. Anales del Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México (Vol. 8, pp. 305-314).
  2. WoRMS (2019). Anchoromicrocotyle Bravo-Hollis, 1981. Accessed at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=717521 on 2019-11-24