Bivagina

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.

Bivagina
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Platyhelminthes
Class: Monogenea
Order: Mazocraeidea
Family: Microcotylidae
Subfamily: Microcotylinae
Genus: Bivagina
Yamaguti, 1963

Taxonomy

This genus was proposed by Yamaguti in 1963 to accommodate Bivagina tai, Bivagina alcedinis, Bivagina australis, Bivagina baumi and Bivagina sillaginae, previously included in the genus Microcotyle. [1]

Description

Members of the genus Bivagina are characterised by a symmetrical haptor, a few testes, a cirrus and/or genital atrium unarmed and two vaginal pores armed or unarmed.

Species

Currently ten species are recognized:[2]

  • Bivagina alcedinis (Parona & Perugia, 1889) Yamaguti, 1963 [3][1]
  • Bivagina baumi (Sprehn, 1930) Yamaguti, 1963 [1]
  • Bivagina centrodonti (Brown, 1929) Mamaev & Parukhin, 1975 [4][5]
  • Bivagina pagrosomi (Murray, 1931) Dillon & Hargis, 1965 [6][7]
  • Bivagina tai (Yamaguti, 1938) Yamaguti, 1963 [8][1]
  • Bivagina australis (Murray, 1931) Yamaguti, 1963 [6][1] currently included in Polylabroides as Polylabroides australis (Murray, 1931) Roubal, 1981
  • Bivagina heterospina Mamaev & Parukhin, 1975 [5] currently included in Omanicotyle as Omanicotyle heterospina (Mamaev & Parukhin, 1974) Yoon, Al-Jufaili, Freeman, Bron, Paladini & Shinn, 2013 [9]
  • Bivagina kyphosi Yamaguti, 1968 [10] included in Neobivagina as Neobivagina kyphosi (Yamaguti, 1968) Bravo-Hollis, 1979 then in Pseudobivagina as Pseudobivagina kyphosi (Yamaguti, 1968) Mamaev, 1986 [11]
  • Bivagina punctipinnus Crane, 1972 [12] included in Neobivagina as Neobivagina punctipinnus (Crane, 1972) Bravo-Hollis, 1979 then in Pseudobivagina as Pseudobivagina punctipinnus (Crane, 1972) Mamaev, 1986 [11]
  • Bivagina sillaginae (Woolcock, 1936) [13] currently included in Polylabris as Polylabris sillaginae (Woolcock, 1936) [14]

References
  1. Yamaguti S. 1963. Systema Helminthum Volume IV Monogenea and Aspidocotylea. Interscience, a division of John Wiley & Sons, New York & London, 699 pp.>
  2. WoRMS (2019). Bivagina Yamaguti, 1963. Accessed at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=119379 on 2019-11-27
  3. Contribuzione per unamonografia del genere Microcotyle. PDF open access
  4. Brown, Eleanor M. (1929). "On a new species of Monogenetic Trematode from the gills of Pagellus centrodontus". Proceedings of the Zoological Society of London. 99 (1): 67–83. doi:10.1111/j.1469-7998.1929.tb07687.x. ISSN 0370-2774.
  5. Mamaev, Y.L.; Parukhin, A.M.(1975). Description of a new monogenean species Bivagina heterospina new species and remarks on the composition of the genus Bivagina. Hydrobiological Journal 11(2): 69-72, 1975
  6. Murray, Florence V. (1931). "Gill Trematodes from some Australian Fishes". Parasitology. 23 (4): 492–506. doi:10.1017/S0031182000013883. ISSN 0031-1820. S2CID 85731699.
  7. Dillon, W. A., & Hargis, W. J. (1965). Monogenetic trematodes from the southern Pacific Ocean. 2. Polyopisthocotyleids from New Zealand fishes: the families Discocotylidae, Microcotylidae, Axinidae and Gastrocotylidae. Antarctic Research Series, 5, 251-280.
  8. Yamaguti, S. (1938). Studies on the helminth fauna of Japan. Part 24. Trematodes of fishes, V. Japanese Journal of Zoology, 8(1), 15-74.
  9. Yoon, Gil Ha; Al-Jufaili, Sarah; Freeman, Mark A; Bron, James E; Paladini, Giuseppe; Shinn, Andrew P (2013). "Omanicotyle heterospina n. gen. et n. comb. (Monogenea: Microcotylidae) from the gills of Argyrops spinifer (Forsskål) (Teleostei: Sparidae) from the Sea of Oman". Parasites & Vectors. 6 (1): 170. doi:10.1186/1756-3305-6-170. ISSN 1756-3305. PMC 3683332. PMID 23758894. PDF open access
  10. Yamaguti, S. (1968). Monogenetic trematodes of Hawaiian fishes. Honolulu: University of Hawaii Press. ISBN 978-0870228919
  11. Mamaev, Y. L. (1986). The taxonomical composition of the family Microcotylidae Taschenberg, 1879 (Monogenea). Folia Parasitologica, 33, 199–206. open access
  12. Crane, J. W. 1972. Systematics and new species of marine monogenea from California. Wasmann Journal of Biology 30:109-166
  13. Woolcock, Violet (1938). "Monogenetic Trematodes from some Australian Fishes". Parasitology. 28 (1): 79–91. doi:10.1017/S0031182000022277. ISSN 0031-1820. S2CID 251058449.
  14. Dillon, W. A., Hargis Jr, W. J., & Harrises, A. E. (1985). Monogeneans from the southern Pacific Ocean, Polyopisthocotyleids from the Australian fishes, the subfamily Polylabrinae and Microcotylinae. open access PDF
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