arcicella aquatica arcicella aquatica arcicella aquatica is a bacterium from the genus of arcicella which has been isolated from the neuston film of a freshwater lake in russia. arcicella aquatica scientific classification domain: bacteria phylum: bacteroidota class: cytophagia order: cytophagales family: spirosomaceae genus: arcicella species: a. aquatica binomial name arcicella aquaticanikitin et al. 2004 type strain cip 107990, dsm 17092, lmg 21963, no-502 synonyms arcocella aquatica