spirulina agilissima spirulina agilissima spirulina agilissima is a freshwater cyanobacteria from the genus spirulina. spirulina agilissima scientific classification domain: bacteria phylum: cyanobacteria class: cyanophyceae order: spirulinales family: spirulinaceae genus: spirulina species: s. agilissima binomial name spirulina agilissima(lagerheim) kirchner in engler & prantl 1900