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From Wikipedia, the free encyclopedia

Gnathiid isopod.jpg
Male (left), female (upper right), praniza (lower right)
Scientific classification

Leach, 1814

The Gnathiidae are a family of isopod crustaceans. They occur in a wide range of depths, from the littoral zone to the deep sea. The adults are associated with sponges and may not feed.[1] The juvenile form is known as a 'praniza' larva, and it is a temporary parasite of marine fish.[1] [2]

Drawings of Gnathiidae by Hesse (1864)[2]
Drawings of Gnathiidae by Hesse (1864)[2]

Taxonomy in the family relies on male characters, such that females and juveniles cannot be reliably identified.[1] The family contains 182 species,[3] divided among the following genera:[4]

  • Afrignathia Hadfield & Smit, 2008
  • Bathygnathia Dollfus, 1901
  • Bythognathia Camp, 1988
  • Caecognathia Dollfus, 1901
  • Elaphognathia Monod, 1926
  • Euneognathia Stebbing, 1893
  • Gibbagnathia Cohen & Poore, 1994
  • Gnathia Leach, 1814
  • Monodgnathia Cohen & Poore, 1994
  • Paragnathia Omer-Cooper & Omer-Cooper, 1916
  • Tenerognathia Tanaka, 2005
  • Thaumastognathia Monod, 1926

YouTube Encyclopedic

  • 1/2
    14 329
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  • Denizde Yaşayan 10 BÖCEK
  • UMTMOOC - Crustacean Parasites (Part 4)


External links


  1. ^ a b c Richard Brusca, Vania R. Coelho & Stefano Taiti (2001). "Suborder Gnathiidae [sic]". Guide to the Coastal Marine Isopods of California. Tree of Life Web Project. Retrieved August 28, 2010.
  2. ^ a b Hesse, Eugène (1864). Mémoire sur les pranizes et les ancées et sur les moyens curieux à l'aide desquels certains crustacés parasites assurent la conservation de leur espèce. Extrait du Tome XMII des Mémoires Présentés par Divers Savants à l'Institut Impérial de France. Paris, J. B. Baillière et Fils, Libraire de l’Académie Impériale de Médecine. BHL PDF in BHL
  3. ^ Jörundar Svavarsson (2006). "New species of Gnathiidae (Crustacea, Isopoda, Cymothoida) from seamounts off northern New Zealand" (PDF). Zootaxa. 1173: 39–56.
  4. ^ WoRMS (2010). M. Schotte; C. B. Boyko; N. L. Bruce; G. C. B. Poore; S. Taiti; G. D. F. Wilson, eds. "Gnathiidae". World Marine, Freshwater and Terrestrial Isopod Crustaceans database. World Register of Marine Species. Retrieved August 28, 2010.

This page was last edited on 3 December 2018, at 07:47
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