Dajidae

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 Dajid....
Found on http://en.wikipedia.org/wiki/Dajidae
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