title: Rickettsial infection in marine crustacea.
abstract: A rickettsial disease is described in the crab Carcinus mediterraneous Czerniavski. The pathogen develops within vacuoles in connective tissue cells. 2 morphologically different forms are observed in the last stage of infection. The systematic position of this procaryote is discussed.
mesh_terms: D000818:Animals; D003386:Brachyura / Q000469:parasitology*; D008854:Microscopy, Electron; D012281:Rickettsia / Q000472:pathogenicity* / Q000502:physiology / Q000648:ultrastructure