Data and Publications - Registry of Aquatic Pathology View Record Accession number: 431 Host species (latin): Callinectes sapidus Common name: Crab, Blue Disease/condition: Sick crab disease Location (host): Aetiology: Amesoma purpuris Aetiology: Amesoma purpuris Additional Information: Significance: Ubiquitous amongst many crustaceans. Usually low prevalence. Mortalities recorded. Lession: Numerous microsporean spores within host cells. Stains: Location: Chesapeake Bay Area: Country: USA Submitter: Dr. Phyllis T. Johnson Accession date: 2/1/1991 Images: Working for a sustainable blue future