Dajidae
Encyclopedia
Dajidae is a family
of marine isopod
crustacean
s 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.
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...
of marine isopod
Isopoda
Isopods are an order of peracarid crustaceans, including familiar animals such as woodlice and pill bugs. The name Isopoda derives from the Greek roots and...
crustacean
Crustacean
Crustaceans form a very large group of arthropods, usually treated as a subphylum, which includes such familiar animals as crabs, lobsters, crayfish, shrimp, krill and barnacles. The 50,000 described species range in size from Stygotantulus stocki at , to the Japanese spider crab with a leg span...
s in the suborder Cymothoida
Cymothoida
Cymothoida is a suborder of isopod crustaceans. It contains the following superfamilies and families:*Superfamily Anthuroidea**Antheluridae**Anthuridae**Expanathuridae**Hyssuridae**Leptanthuridae**Paranthuridae*Superfamily Cymothooidea**Aegidae...
. The original description was made by Giard and Bonnier in 1887.
Members of this family are ectoparasites
Parasitism
Parasitism is a type of symbiotic relationship between organisms of different species where one organism, the parasite, benefits at the expense of the other, the host. Traditionally parasite referred to organisms with lifestages that needed more than one host . These are now called macroparasites...
of krill
Krill
Krill is the common name given to the order Euphausiacea of shrimp-like marine crustaceans. Also known as euphausiids, these small invertebrates are found in all oceans of the world...
. They resemble a fleshy growth on the krill's back, and make the host look as if it is wearing a rucksack.
Genera
- Allophryxus Koehler, 1911
- Antephyra Schultz, 1978
- Arthrophryxus Richardson, 1908
- Aspidophryxus G.O. Sars, 1883
- Branchiophryxus Caullery, 1897
- Colophryxus Richardson, 1908
- Dajus Krøyer, 1846
- Dolichophryxus Schultz, 1977
- Heterophryxus G. O. Sars, 1885
- Holophryxus Richardson, 1905
- Notophryxus G.O. Sars, 1883
- Oculophryxus Shields & Gómez-Gutiérrez, 1996
- Paradajus Nierstrasz & Brender à Brandis, 1923
- Paraspidophryxus Schultz, 1977
- Prodajus Bonnier, 1903
- Prophryxus Richardson, 1909
- Streptodajus Nierstrasz & Brender à Brandis, 1923
- Zonophryxus Richardson, 1903