Pseudaxine

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Pseudaxine
Parasite200077-fig2 - Pseudaxine trachuri - drawings of body.png
Pseudaxine trachuri (Type-species of Pseudaxine)
Scientific classification
Kingdom:
Animalia
Phylum:
Platyhelminthes
Class:
Monogenea
Subclass:
Polyopisthocotylea
Family:
Gastrocotylidae
Genus:
Pseudaxine

Parona & Perugia, 1890 [1]

Pseudaxine is a genus which belongs to the phylum Platyhelminthes and class Monogenea; all its species are parasites of fish. [2]

Contents

Morphology

The clamps of Pseudaxine trachuri Parasite200077-fig4 - Pseudaxine trachuri - drawings of clamps.png
The clamps of Pseudaxine trachuri

Species of Pseudaxine 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. [1] The clamps are distributed along one margin of the haptor.[ citation needed ]Pseudaxine resemble Axine in having a single row of 20 – 30 clamps on one side of the body. However, it differs from Axine in having their hooks situated at the posterior end of the clamp row. [3] Pseudaxine also resembles Gastrocotyle in having a single row of clamps on one side, however, in Pseudaxine the haptor is oblique, while in Gastrocotyle the haptor is parallel to the body-axis, and extends to the ovarian zone. [4]

Systematics

Pseudaxine was established to accommodate Pseudaxine trachuri from the gills of the Atlantic horse mackerel Trachurus trachurus (referred to as Caranx trachurus in the original description), designated as the type species of the genus. [1] It was placed in the Microcotylinae, [5] [6] in Gastrocotylinae [7] then in Arreptocotylidae. [5] Currently, it is included in the Gastrocotylidae. [8]

Species

Nine species have been described in Pseudaxine:

Related Research Articles

<i>Microcotyle</i> Genus of flatworms

Microcotyle is a genus which belongs to the phylum Platyhelminthes and class Monogenea. Species of Microcotyle 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.

Gastrocotylidae Family of worms

Gastrocotylidae is a family of polyopisthocotylean monogeneans. All the species in this family are parasitic on fish.

<i>Microcotyle archosargi</i> Species of worm

Microcotyle archosargi is a species of monogenean, parasitic on the gills of a marine fish. It belongs to the family Microcotylidae. It was first described by MacCallum in 1913 based on ten specimens. Hargis (1956) pointed out that the description and figures given by MacCallum were poor in details.

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

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

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

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

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

<i>Microcotyle pomatomi</i> Species of worms

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

<i>Pseudaxine trachuri</i> Species of worms

Pseudaxine trachuri is a species of monogenean, parasitic on the gills of a marine fish. It belongs to the family Gastrocotylidae.

<i>Pseudaxine bivaginalis</i> Species of worms

Pseudaxine bivaginalis is a species of monogenean flatworm, which is parasitic on the gills of a marine fish. It belongs to the family Gastrocotylidae.

Gastrocotylinae is a sub-family of polyopisthocotylean monogeneans. All the species in this family are parasitic on fish.

<i>Sibitrema</i> Genus of flatworms

Sibitrema is a genus which belongs to the phylum Platyhelminthes and class Monogenea; the only species included in this genus is parasite of fish.

<i>Sibitrema poonui</i> Species of worms

Sibitrema poonui is a species of monogenean flatworm, which is parasitic on the gills of a marine fish. It belongs to the family Gastrocotylidae.

<i>Allopseudaxine</i> Genus of flatworms

Allopseudaxine is a genus which belongs to the phylum Platyhelminthes and class Monogenea; all its species are parasites of fish.

<i>Allopseudaxine katsuwonis</i> Species of worms

Allopseudaxine katsuwonis is a species of monogenean flatworm, which is parasitic on the gills of a marine fish. It belongs to the family Axinidae.

Microcotylinae Subfamily of flatworms

Microcotylinae is a subfamily within family Microcotylidae and class Monogenea. This subfamily was created by Taschenberg in 1879.

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.

References

  1. 1 2 3 4 Parona, C. & Perugia, A. (1890) Intorno ad alcune Polystomeae e considerazionis sulla sistematica di questa famiglia. Atti della Societa Ligustica, 15, 225-242.
  2. 1 2 Bouguerche, Chahinez; Tazerouti, Fadila; Gey, Delphine; Justine, Jean-Lou (2020). "No vagina, one vagina, or multiple vaginae? An integrative study of Pseudaxine trachuri (Monogenea, Gastrocotylidae) leads to a better understanding of the systematics of Pseudaxine and related genera". Parasite. 27: 50. doi: 10.1051/parasite/2020046 . ISSN   1776-1042. PMC   7433403 . Open Access logo PLoS transparent.svg
  3. ↑ Kearn, G.C., 2005. Leeches, Lice and Lampreys: A Natural History of Skin and Gill Parasites. Springer, Dordrecht, The Netherlands.
  4. ↑ Unnithan, R. Viswanathan (2009). "On the functional morphology of a new fauna of Monogenoidea on fishes from Trivandrum and environs Part II. Opisthogynidae fam.nov. (Gastrocotyloidea) and Abortipedinae subfam.nov. (Protomicrocotyloidea)". Parasitology. 52 (3–4): 315. doi:10.1017/S0031182000027190. ISSN   0031-1820.
  5. 1 2 Palombi, A. (1949). I. Trematodi d'Italia: parte I. Trematodi Monogenetici. Rosenberg.
  6. ↑ Tripathi, Y. R. (1956). Studies on the parasites of Indian fishes. IV. Trematoda: Monogenea, Microcotylidae. Records of the Indian Museum, 52(2/4), 231-247
  7. ↑ Sproston, N. G. (1946). A synopsis of the monogenetic trematodes. The Transactions of the Zoological Society of London, 25(4), 185-600.
  8. ↑ Hargis, William J. (1957). "Monogenetic Trematodes of Gulf of Mexico Fishes. Part XIII. The family Gastrocotylidae Price, 1943 (Continued)". Transactions of the American Microscopical Society. 76 (1): 1. doi:10.2307/3223916. ISSN   0003-0023.
  9. 1 2 Ishii, N. (1936). Some new ectoparasitic trematodes of marine fishes. Dobutsugaku Zasshi= Zoological Magazine, 48(8/10), 781-790. (In Japanese).
  10. ↑ Price, E.W. (1962b) Redescription of two exotic species of Monogenetic trematodes and the proposal of a new family. Proceedings Of The Biological Society Of Washington, 75, 295-302. PDF Open Access logo PLoS transparent.svg
  11. 1 2 Yamaguti S. 1968: Monogenetic Trematodes of Hawaiian Fishes. University of Hawaii Press, Honolulu, 287 pp.
  12. ↑ Meserve, F.G. (1938) Some monogenetic Trematodes from the Galapagos Islands and the Neighboring Pacific. Allan Hancock Pacific Expeditions, 2, 31-72. PDF Open Access logo PLoS transparent.svg
  13. 1 2 Lebedev, B. I. (1984) System of Monogenea of the suborder Gastrocotylinea. Vladivostok: Academy of Sciences of the USSR, 1–15 pp. (In Russian.)
  14. ↑ Chauhan, B.S. (1945) Trematodes from Indian Marine fishes Part I. On Some New Monogenetic Trematodes of the Sub-orders Monopisthocotylea Odhner, 1912 and Polyopisthocotylea Odhner, 1912. Indian Acad.Sci.SectionB, 21, 129-159.
  15. ↑ Hargis, W. J. JR. 1956b. Monogenetic trematodes of Gulf of Mexico fishes. Part;XII. The family Gastroeotylidae Price, 1943. Bull. Mar. Sci. Gulf and Caribbean 6: 28-43.
  16. ↑ Dillon, William Arthur; Hargis, William J. (1965). "Monogenetic Trematodes from the Southern Pacific Ocean: 2. Polyopisthocotyleids from New Zealand Fishes: The Families Discocotylidae, Microcotylidae, Axinidae, and Gastrocotylidae": 251–280. doi:10.1029/AR005p0251. ISSN   2328-9201.Cite journal requires |journal= (help)
  17. ↑ Mamaev, Yu.L. (1967) Pseudaxine triangula sp. n. and Metapseudaxine ventrosicula gen. & sp. n. and their position in the system of Monogenoidea. Zoologicheskii Zhurnal, 46, 993–998. (In Russian).
  18. ↑ Lebedev, B.I. (1977) Two new species of monogeneans from fishes of Indo-Pacific waters wilh notes concerning the genera Pseudaxine and Pseudaxinoides. Excerta parasitologica en memoria del Dr.Eduardo Caballero y Cabellero., 4, 69-78.
  19. ↑ Unnithan, R.V. (1968) on six species of Monogenetic trematodes, parasitic on the gills of marine fishes from the Indian seas. Treubia, 27, 141-164. PDF Open Access logo PLoS transparent.svg
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