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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. The juvenile form is known as a 'praniza', and it is a temporary parasite of marine fish. 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.
Sphaeromatidae is a family of isopods, often encountered on rocky shores and in shelf waters in temperate zones. The family includes almost 100 genera and 619 known marine species. Within these genera, there are groups that share distinctive morphologies; further research may reclassify these genus-groups as separate families.
Epicaridea is a former suborder of isopods, now treated as an infraorder in suborder Cymothoida. They are ectoparasites that inhabit other crustaceans, namely ostracods, copepods, barnacles and malacostracans. Epicarideans are found globally. Epicaridea are generally less well researched than other isopods.
The Cirolanidae are a family of isopod crustaceans, including these genera:
Cymothoida is the name of a suborder of isopod crustaceans with a mostly carnivorous or parasitic lifestyle. It contains more than 2,700 described species in four superfamilies. Members of the suborder are characterised by their specialised mouthparts which include a mandible with a tooth-like process which is adapted for cutting or slicing.
The Bopyridae are a family of isopod crustaceans in the suborder Cymothoida. There are 1223 individual species contained in this family. Members of the family are ectoparasites of crabs and shrimp. They live in the gill cavities or under the carapace where they cause a noticeable swelling. Fossil crustaceans have occasionally been observed to have a similar characteristic bulge.
Cancricepon elegans is a species of isopods that parasitises the crab Pilumnus hirtellus. It was originally described from French waters and has since been found off the coast of Great Britain.
The Chaetiliidae are a family of isopod crustaceans in the suborder Valvifera, comprising these genera:
The Cabiropidae are a family of isopod crustaceans in the suborder Cymothoida. The original description was made by Giard and Bonnier in 1887. Members of the family are hyperparasites of other parasitic isopods in the order and some are parasites on other free-living isopods.
The Cryptoniscidae are a family of isopod crustaceans in the suborder Cymothoida. The original description was made by Kossmann in 1880. "Liriopsidae" is a junior synonym. Members of this family are hyperparasites of rhizocephalid barnacles which are themselves parasites of decapod crustaceans. The morphology of the adult females gives little clue as to their true identity, but the free-living larvae show their true taxonomic affiliations.
The Hemioniscidae are a family of marine isopod crustaceans in the suborder Cymothoida. The original description was made by Bonnier in 1900. Members of this family are parasitic on cirripede barnacles.
The Cyproniscidae are a family of marine isopod crustaceans in the suborder Cymothoida. The original description was made by Bonnier in 1900. Members of this family are parasitic on other isopods.
The Dajidae are a family of marine isopod crustaceans in the suborder Cymothoida. The original description was made by Giard and Bonnier in 1887. Members of this family are ectoparasites of krill. They resemble a fleshy growth on the krill's back, and make the host look as if it is wearing a rucksack. These genera are included in the family Dajidae:
The Entoniscidae are a family of marine isopod crustaceans in the suborder Cymothoida. Members of this family are parasites of brachyuran and anomuran crabs, living in their hosts' haemocoel. A small chitinised hole develops through the host's exoskeleton through which the isopod can communicate with the environment. The female isopod bears little resemblance to any free-living isopod, but the morphology of the larvae show their taxonomic affiliations.
Parasymmetrorbione is a genus of isopod containing a single species, Parasymmetrorbione bicauda.
Albunione yoda is a marine isopod assigned to the family Bopyridae, which is known to occur near Taiwan. It is an ectoparasite that resides in the gills of its host, the mole crab Albunea groeningi. A. yoda was named after a character of the Star Wars saga, Jedi Master Yoda, because with the slightly curved long lateral extensions of the head of the female, it looks like the head of Yoda with his long drooping ears.
Harriet Richardson Searle was an American carcinologist. She was known as the first lady of isopods and was one of the first female carcinologists, with only Mary Jane Rathbun before her.
Cirolana is a genus of isopod crustaceans.
Allorbimorphus is a genus of Isopoda parasites, in the family Bopyridae, containing the following species that can be found on the coasts of Australia, and Asia:
Aporobopyrus is a genus of Isopoda parasites, in the family Bopyridae, that contains the following 20 species:
References
- 1 2 3 Giard, A. & Bonnier, J. (1887). Contributions a l'etude des bopyriens. Travaux de l'Institut Zoologique de Lille et du Laboratoire Marine de Wimereux, 5, 1–272.
- ↑ Boyko, Christopher B.; Schotte, M.; Markham, J. (2013). Cancricepon Giard & Bonnier, 1887. In: Boyko, C.B; Bruce, N.L.; Hadfield, K.A.; Merrin, K.L.; Ota, Y.; Poore, G.C.B.; Taiti, S.; Schotte, M. & Wilson, G.D.F. (Eds) (2008 onwards). World Marine, Freshwater and Terrestrial Isopod Crustaceans database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=118169 on 2012-11-11.
- 1 2 Richardson, H. (1910). Marine isopods collected in the Philippines by the U.S. Fisheries steamer Albatross in 1907–8. Washington, D.C.: Department of Commerce Bureau of Fisheries.
- ↑ Bourdon, R. (1971). Épicarides nouveaux pour la côte occidentale d'Afrique équatoriale. Bulletin de l'Institut Fondamental d'Afrique Noire, sér. A, 33, 371–391.
- ↑ Nierstrasz, H. F. & Brender à Brandis, G. A. (1925). Bijdrage tot de kennis der fauna van Curacao. Epicaridea. Bijdragen tot de Dierkunde, 24, 1–8.
- 1 2 Danforth, C. G. (1970). Epicarids (Isopoda) of Eniwetok Atoll. Pacific Science, 24, 462–471.
- ↑ An, J., Yu, H. & Williams, J. (2012). A new species of Cancricepon Giard & Bonnier, 1887 (Isopoda: Bopyridae) from China. Systematic Parasitology, 83(3), 243–248.
- ↑ Stebbing, T. R. R. (1910). No. VI.– Isopoda from the Indian Ocean and British East Africa. The Percy Sladen Trust Expedition to the Indian Ocean in 1905. Transactions of the Linnean Society of London, Series 2, Zoology, 14, 83–122.
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