Gnathiidae
Gnathiidae | |
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Male (left), female (upper right), praniza (lower right) | |
Scientific classification ![]() | |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Subphylum: | Crustacea |
Class: | Malacostraca |
Superorder: | Peracarida |
Order: | Isopoda |
Suborder: | Cymothoida |
Superfamily: | |
Family: | Gnathiidae 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', and it is a temporary parasite of marine fish.[1][2] These forms are not larvae; Gnathiidae instead become parasitic during the manca stage. Mancae of the Gnathiidae closely resemble the adult form, however they lack the final pair of pereiopods.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/2/2d/Hesse_M%C3%A9moire_sur_les_pranizes_et_les_anc%C3%A9es_Plate_3.png/220px-Hesse_M%C3%A9moire_sur_les_pranizes_et_les_anc%C3%A9es_Plate_3.png)
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]
References[]
- ^ 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.
- ^ 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
- ^ Jörundar Svavarsson (2006). "New species of Gnathiidae (Crustacea, Isopoda, Cymothoida) from seamounts off northern New Zealand" (PDF). Zootaxa. 1173: 39–56.
- ^ 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.
External links[]
- Gnathiidae Australian Isopoda
Categories:
- Cymothoida
- Taxa named by William Elford Leach
- Parasitic crustaceans
- Crustacean families
- Isopod stubs
- Parasitic animal stubs